The best power banks for bushcraft, camping, hiking and emergencies

Find the best power bank for your outdoor trips. I present to you the 9 best and by me tested power banks as well as a detailed buying guide.

from Martin Gebhardt | Gear | reading time 19 Min
Updated on 04 July 2023 49.036 views 100% found this guide helpful
The best power banks for bushcraft, camping, hiking and emergencies

Martin Gebhardt

From Martin Gebhardt. Check out my “About me” page.


👉 The key facts from this guide

  • Power banks are essential for outdoor activities and emergency situations to charge devices such as smartphones, lamps, and even laptops.
  • The INIU Powerbank 10000 is the best choice due to its charging times, speeds, and additional ports.
  • The Anker PowerCore Slim 10000 is a strong alternative, although it only has one USB-A port.
  • For a compact and affordable option, the Intenso Powerbank XS 5000 is ideal.
  • The Anker PowerCore II 20000 offers high capacity while being relatively light.
  • It is important to consider the capacity (mAh), number of outputs and inputs, weight, and dimensions of a power bank before making a purchase decision.

Outside, I need power. Especially when I am on the road for several days.

I need to charge my smartphone to navigate, or my headlamp needs a new power source.

Here it is not only about needing light in the dark, but also about being able to communicate in case of emergency.

You should be confident that you can charge a phone, a headlamp, or other devices, regardless of what situation you are in.

And for that, I have acquired several power banks that have been accompanying me on my journeys for a long time.

In this buying guide, I will now introduce you to my best power banks and also tell you what to look out for when making a purchase.

Why a power bank is essential not only in the wilderness

The purpose of a power bank is to charge battery-powered electronics on the go.

Power banks are used to charge smartphones, lamps, tablets, speakers, and even laptops.

Being prepared with a power bank means staying connected with the rest of the world.

But not only in the wilderness does a power bank help you to get electricity. Power supply is also part of emergency preparedness.

A power bank supplies your smartphone and other devices with vital power
A power bank supplies your smartphone and other devices with vital power

In an emergency, being prepared is an important strategy at any time of the year.

From a fancy transformer to floods, from earthquakes to heat-related power outages, and from wind that destroys a telephone mast, there are many types of natural disasters and man-made disasters.

Through these disasters, the power supply is interrupted. In these situations, the better prepared you are, the easier it will be to deal with the situation.

Certain items, from water to a power bank, can make all the difference.

So, be always prepared to communicate and pack a power bank in your backpack or Bug Out Bag.

The 9 best power banks for survival, bushcraft, and emergency preparedness

I have looked at 9 of the best portable chargers from major brands and popular competitors.

So, this is what I did: I sat down with a stopwatch and repeatedly discharged the iPhone 12 and then measured how long it takes to charge. I did this with each power bank and recorded the values.

It was measured how fast they load and how many full smartphone charges each power bank stores.

The power banks in my list are all represented in the bestseller lists, but differ in some points.

I have ordered them in the order in which I would buy them.

My testing method: Discharge the iPhone, place a stopwatch next to it, and measure the time unit during the charging process
My testing method: Discharge the iPhone, place a stopwatch next to it, and measure the time unit during the charging process

My tests were conducted using the same iPhone 12. I set the screen brightness to 100% and tested the following things:

  • How much charge is done in 15 minutes?
  • How much charge is done in 60 minutes?
  • How much time does it take to fully charge the iPhone 12 from 0%?
  • How many times could I recharge the iPhone 12 from 0%?

If you're constantly trying to keep your phone at 100%, or worried about it running out of battery in the wilderness, I now have the details you need.

That also includes which chargers have which and how many ports, so you can even charge multiple devices at the same time.

The best power banks you can buy today

I will now introduce you to my 9 best power banks. First, you will find a quick overview in a table here.

Product mAh Outputs Inputs Weight
INIU Powerbank 10000 10000 2x USB-A, 1x USB-C 1x USB-C 200 grams
Anker PowerCore Slim 10000 10000 1x USB-A 1x USB-C 213 grams
Intenso Powerbank XS 5000 5000 1x USB-A, 1x USB-C 1x Micro-USB, 1x USB-C 103 grams
Anker PowerCore II 20000 20000 2x USB-A 1x USB-C, 1x Micro-USB 342.5 grams
INIU 20W 20000 Powerbank 20000 2x USB-A, 1x USB-C 1x USB-C 365 grams
EnergyCell 10000 Powerbank 10000 1x USB-A 1x Micro-USB 172 grams
Anker PowerCore 5000 5000 1x USB-A 1x Micro-USB 136 grams
Ekrist Powerbank 26800 26800 2x USB-A 1x Micro-USB 350 grams
Miady Powerbank Doppelpack 2x 10000 2x USB-A

And now I will address each device individually. Let's get started.

INIU 10000mAh Portable Charger

For me, the INIU with 10,000mAh is the best power bank.

INIU Power Bank, Ultra Slim 10000mAh Powerbank Klein Aber Stark, USB C Input & Output, Externe Handyakkus Triple 3A with Flashlight, Kompatibel mit iPhone 15 14 13 12 11 X Pro Max Samsung Huawei

Amazon
Offer

-34%
4,6 (41192)

Data updated 9 hours ago

INIU Power Bank, Ultra Slim 10000mAh Powerbank Klein Aber Stark, USB C Input & Output, Externe Handyakkus Triple 3A with Flashlight, Kompatibel mit iPhone 15 14 13 12 11 X Pro Max Samsung Huawei

  • INIU - Der SICHERE Profi zum SchnellladenErleben Sie das sicherste Aufladen mit über 38 Millionen Nutzern weltweit. Bei INIU verwenden wir nur die hochwertigsten Materialien. Daher sind wir zuversichtlich, eine branchenführende 3-jährige Garantie zu gewähren.
  • Super Dünne 10000mAhDie dünnste 10000mAh Powerbank auf dem Markt, die problemlos in jede Tasche passt. Genießen Sie die tagelange Ladekapazität, die Ihr iPhone 8 3,6 Mal, Ihr Samsung S8 2,3 Mal oder Ihr iPad Air 1 Mal aufladen kann.
  • Version 2024 USB-C-Eingang & -AusgangIm Gegensatz zu den meisten Ladegeräten, die nur über einen USB-C-Eingang verfügen, hat INIU 3A High-Speed PowerPaw einen USB-C-Eingang und -Ausgang, wodurch sie perfekt für Ihr neues iPhone, iPad und alle kommenden USB-C-Geräte geeignet ist.
  • Schnelleres Aufladen von 3A Spart Ihnen 45 MinutenMit dem schnellen 3A-Aufladen kann Ihr iPhone in einer Stunde bis zu 78% aufgeladen werden, was deutlich mehr ist als 42% von 2,1A in der gleichen Zeit. Schnellere Geschwindigkeit zum Aufladen von 3A befreit Sie früher vom Kabelsalat!
  • Noch Größere KompatibilitätIm Gegensatz zu den meisten Powerbanks, die die Geräte mit geringem Stromverbrauch nicht aufladen kann, funktioniert das tragbare Ladegerät von INIU nicht nur mit allen Handys und Tablets, sondern auch mit kleineren Geräten wie AirPods, Bluetooth-Kopfhörern, Fitness-Trackern, Smartwatches usw.

$ 18,99
List Price: $ 28,99

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You may have expected the Anker power bank with 10000mAh. But I have to disappoint you, even though the race is damn close.

This power bank from INIU is one of the best portable chargers because not only the charging times and speeds are at the top of the table, but it also has two USB-A outputs and a USB-C output/input, unlike the single USB-A charging port of the Anker PowerCore Slim 10000.

And since these additional ports can make a difference in whether you power other devices while charging your phone (or whether you help a friend when they need it), I give the overall preference to the INIU.

In addition, the affordable price is unbeatable. And what's really outstanding is that you can even get a set of two INIU power banks (10000mAh) for a great price (about €37).

Here are the facts about the power bank:

  • Capacity: 10000mAh
  • Outputs: 2x USB-A, 1x USB-C
  • Inputs: 1x USB-C
  • Weight: 200 grams
  • Dimensions: 13.2 x 6.9 x 1.3 cm

Advantages

Fast short-term charging

2 USB-A ports

1 USB-C port

Great price-performance ratio

Disadvantages

Not the fastest power bank for a full battery charge

Flashlight not necessary

For a brand that I wasn't so familiar with, the INIU power bank proved itself in the 15-minute and one-hour charging processes (at 22% and 78%), which were 1 to 2% ahead of the Anker PowerCore Slim power bank.

Only in the charging time for a complete smartphone, it couldn't beat the Anker power bank and lagged behind the Anker charger with a time of 2 hours four minutes.

Both power banks (INIU 10000mAh and Anker 10000mAh) charge the iPhone 12 about 2.2 to 2.25 times. So, they are practically on par.

Here are some more charging times:

  • Samsung S8: 2.3 charges
  • iPhone 8: 3.6 charges
  • AirPods Pro: 13.2 charges
  • iPad Air: 1.2 charges

Anker PowerCore Slim 10000 (Anker 313 Power Bank)

The Anker PowerCore Slim 10000 is one of the strongest challengers. However, there are a few points why it has slipped to second place.

Nevertheless, I really like the power bank, and it is one of the best portable chargers for your devices.

Anker 523 Powerbank, 20W 10000mAh Power Delivery Powerbank, externer USB-C Akku, kompatibel mit iPhone 12/12 mini/12 Pro/12 Pro Max, S10, Pixel 3 (Netzteil Nicht im Lieferumfang enthalten)
4,5 (7599)

Data updated 9 hours ago

Anker 523 Powerbank, 20W 10000mAh Power Delivery Powerbank, externer USB-C Akku, kompatibel mit iPhone 12/12 mini/12 Pro/12 Pro Max, S10, Pixel 3 (Netzteil Nicht im Lieferumfang enthalten)

  • ENORME LEISTUNG: Der 20W USB-C Eingang hat mehr als genug Saft, um dein iPhone 12 in nur 30 Minuten auf ganze 50% aufzuladen! Und musst du einmal zwei Geräte gleichzeitig laden, hast du zusätzlich noch einen 12W USB-C Port.
  • EXTREM SCHLANK: Gerade einmal 1,5cm breit - und somit unsere dünnste Powerbank überhaupt!
  • POWER PUR: Mit einer Kapazität von 10.000mAh hast du mehr als genug Energie, um ein iPhone 12 zweimal, ein Samsung S20 eineinhalbmal und ein iPad mini 5 einmal komplett aufzuladen.
  • ABSOLUT SICHER: Ankers MultiProtect Technologie bietet Überspannungsschutz, Temperaturregulierung und mehr - für absolute Sicherheit für dich und deine Geräte.
  • WAS DU BEKOMMST: Eine Anker 523 Powerbank, ein USB-A auf USB-C Ladekabel, ein USB-C auf USB-C Ladekabel, eine Bedienungsanleitung, 18 Monate Herstellergarantie sowie freundlichen Kundenservice.

no price can be determined (B08LH26PFT)

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If it weren't for the single USB-A port, I would give the Anker PowerCore Slim 10000 the first place.

Moreover, the Anker PowerCore Slim 10000 power bank is slightly heavier (213 grams compared to 200 grams) than the INIU power bank.

But be careful, I am testing the version with the 20W input, which costs about €4 more than the version without the 20W input.

Here are the facts about the power bank:

  • Capacity: 10000 mAh
  • Outputs: 1x USB-A
  • Inputs: 1x USB-C
  • Weight: 213 grams
  • Dimensions: 14.9 x 6.8 x 1.4 cm

Advantages

High performance

Fast charging times

Fast charging possible (4.5 hours with 20W, 9 hours with 10W)

18-month warranty

Disadvantages

Only one USB-A output

The charging times are very close to the INIU power bank (21% in 15 minutes, 76% in one hour). To fully charge my iPhone 12, the Anker power bank only took 1 hour and 56 minutes - faster than the INIU power bank.

If you only want to charge one device at a time and the selling price of the PowerCore Slim 10000 is not a decisive factor, you should get this power bank.

Here are some more charging times:

  • iPhone XS: 2.5 charges
  • Galaxy S10: 2.4 charges
  • iPad mini 5: 1.3 charges

Intenso Powerbank XS 5000

The Intenso Powerbank XS 5000 is the best portable charger that fits in your pocket.

Intenso Powerbank XS 5000, externes Ladegerät (5000mAh, geeignet für Smartphone/Tablet PC/MP3 Player/Digitalkamera) schwarz

Amazon
Offer

-24%
4,6 (5151)

Data updated 9 hours ago

Intenso Powerbank XS 5000, externes Ladegerät (5000mAh, geeignet für Smartphone/Tablet PC/MP3 Player/Digitalkamera) schwarz

  • Universelle Kompatibilität: Externer Akku kompatible mit praktisch allen USB-aufladbaren Geräten iPhone, Huawei, Samsung Galaxy iPad Air/Mini und andere Smartphones
  • Verschiedene Lademöglichkeiten: Ein USB-A und ein USB-C-Ausgang ermöglichen das Laden von zwei Geräten gleichzeitig. Input: 5. 0V - 2. 1A; Output: 5. 0V - 2. 1A schnelles Laden ist möglich über USB-C In/Out
  • Kleines Energiewunder: Die kompakte Powerbank wiegt nur 103g und passen durch ihr minimalistisches Design in jede Jacken- oder Hosentasche
  • Sicher und zuverlässig: Blaue LED Energieanzeige, Überspannungsschutz, Entladeschutz, Überladeschutz, Kurzschlusssicherung
  • Lieferumfang: Intenso XS5000 Powerbank, USB-A zu USB-C Ladekabel, Bedienungsanleitung

$ 12,99
List Price: $ 16,99

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Not everyone needs a complete device to fully charge their phone. Occasionally, you just want the convenience of some power.

Perhaps the Intenso Powerbank XS 5000 is exactly the backup you need for your day trip or overnight stay.

  • Capacity: 5000 mAh
  • Outputs: 1x USB-A, 1x USB-C
  • Inputs: Micro-USB, 1x USB-C
  • Weight: 103 grams
  • Dimensions: 9 x 6.3 x 1.3 cm

Advantages

Cheaper than most

Small and compact

Fast charging

Disadvantages

Low power

The numbers between the Intenso Powerbank XS 5000 and the competing Anker 5000 mAh-Stick are close. The Intenso Powerbank XS 5000 wins in one-hour charging (67% to 62%) and loses in 15-minute charging (16% to 19%).

So, why is the Intenso Powerbank XS 5000 ranked so high on my list of best power banks? It is often the cheapest, usually costing around €9.40. And it is slightly lighter than the Anker PowerCore 5000.

Anker PowerCore Essential 20000mAh

The Anker PowerCore II 20000 is the lighter power bank with a large capacity.

Anker 325 Powerbank, 20000mAh externer Akku PowerIQ Technologie USB-C Port, enorme Energiedichte, kompatibel mit iPhone, Samsung Galaxy, iPad und mehr

Amazon
Offer

-20%
4,7 (76978)

Data updated 9 hours ago

Anker 325 Powerbank, 20000mAh externer Akku PowerIQ Technologie USB-C Port, enorme Energiedichte, kompatibel mit iPhone, Samsung Galaxy, iPad und mehr

  • ENORME KAPAZITÄT: Die massive Kraft von 20.000 mAh schenkt deinem iPhone XS über 5 Ladungen, deinem Galaxy S10 fast 5 ganze Ladungen, über 4 Ladungen für dein iPhone 11, sowie über 2,5 Ladungen für dein iPad mini 5!
  • BLITZSCHNELL LADEN: Ankers hauseigene PowerIQ Technologie in Kombination mit starker VoltageBoost Technologie liefert die schnellste und dank der praktischen Erhaltungsladung auch die sicherste Ladung für nahezu jedes Gerät.
  • DOPPELT SO STARK: Zwei USB-Ports garantieren dir Ladungen in Höchstgeschwindigkeit für zwei Geräte gleichzeitig. (Der USB-C-Port ist nicht zum Aufladen anderer Geräte konzipiert.)
  • VIELSEITIGE LADEMÖGLICHKEITEN: Du kannst Anker 325 Powerbank ganz flexibel per USB-C oder Micro-USB wieder aufladen. Das Aufladen deiner Powerbank mit einem 10W Netzteil dauert ca. 10 Stunden und mit einem 5W Netzteil ca. 20 Stunden.
  • WAS DU BEKOMMST: Eine Anker 325 Powerbank, ein Mikro-USB-Kabel, eine Bedienungsanleitung, 18 Monate Garantie sowie freundlichen Kundenservice. (USB-C-Kabel, Lightning-Kabel und Netzteil sind separat erhältlich.)

$ 39,99
List Price: $ 50,00

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Buy directly in the Anker shop here.

The best large yet portable power bank for most people is the Anker PowerCore II power bank with 20000 mAh.

The all-metal casing (suitable for outdoor use!) of the PowerCore II is sturdy and features two high-power USB-A ports: one provides up to 2.4 A (12 W), the other up to 3.6 A (18 W).

The power bank has a micro-USB charging port, and a button with a circular LED array indicates how much charge the device still has. I particularly like this, as I don't like to guess how much juice my power bank has left.

Although the Anker PowerCore Essential 20000mAh power bank has a metal casing, it is not waterproof - but a cheap waterproof bag or plastic container will fix that and add less than a gram to the weight.

Here are the facts about the power bank:

  • Capacity: 20000 mAh
  • Outputs: 2x USB-A
  • Inputs: 1x USB-C, 1x micro-USB
  • Weight: 342.5 grams
  • Dimensions: 15.8 x 7.4 x 1.9 cm

Advantages

Tons of power

USB-C input

18-month warranty

Disadvantages

Charging could be faster

The 20,000mAh power bank from Anker is a few grams lighter than comparable power banks, but the charging results consistently fall 3 to 4% below. My iPhone 12 could be charged a total of 4.5 times (from 0 to 100% battery life).

Another plus point is the USB-C input, which allows the power bank to be charged faster. In addition, the Anker PowerCore Essential 20000mAh has two USB-A outputs. That means your friends or a second device can charge at the same time.

You can charge the power bank either via USB-C or micro-USB - but you'll be much faster with USB-C. Charging the power bank with a 10W power adapter takes about 10 hours, and with a 5W power adapter about 20 hours.

For smaller devices (like headphones), press the button on the power bank for 3 seconds to activate the trickle-charging mode. This will slowly charge connected devices and extend the battery life.

Here are some more charging times (from the manufacturer):

  • iPhone XS: more than 5 charges
  • Galaxy S10: almost 5 charges
  • iPhone 11: more than 4 charges
  • iPad Mini 5: 2.2 charges
  • Galaxy S20: 3.8 charges

INIU 20W 20000mAh Power Bank

The INIU 20W 20000 Power Bank is the best portable charger for USB-C charging.

INIU Power Bank, 22,5W Powerbank klein Aber stark 20000mAh (USB C Input&Output), 3A USB C PD3.0 QC4.0 Powerbank with LED Display, kompatibel mit iPhone 14 13 12 11 Pro Max Samsung S21 S20 iPad Huawei

Amazon
Offer

-25%
4,6 (13874)

Data updated 9 hours ago

INIU Power Bank, 22,5W Powerbank klein Aber stark 20000mAh (USB C Input&Output), 3A USB C PD3.0 QC4.0 Powerbank with LED Display, kompatibel mit iPhone 14 13 12 11 Pro Max Samsung S21 S20 iPad Huawei

  • INIU – Der sichere Profi zum SchnellladenErleben Sie das sicherste Aufladen mit über 38 Millionen Nutzern weltweit. Bei INIU verwenden wir nur hochwertigste Materialien. Daher sind wir zuversichtlich, eine branchenführende 3-jährige Garantie zu gewähren
  • Laden Sie Ihr Telefon bis zu 61% in 30 MinutenMit der verbesserten 22,5W Leistung und der neuesten PD3.0 & QC4.0 Schnellladetechnologie kann Ihr Telefon in nur 30 Minuten auf 61% aufgeladen werden.
  • Laden Sie Ihr iPad Pro bis zu 34% in 30 MinutenDie meisten Powerbanks auf dem Markt können Ihr iPad nicht aufladen oder laden im Schneckentempo. Allerdings kann INIU mit 22,5W High-Speed-Ausgang alle bestehenden iPad auch die neuesten mit VOLLer Geschwindigkeit aufladen.
  • 2024 Version USB-C-Eingang & -AusgangIm Gegensatz zu den meisten Ladegeräten, die nur einen USB-C-Eingang haben, verfügt INIU MegaPower 20W über einen USB-C-Eingang & -Ausgang, der perfekt zu Ihren neuen iPhones, iPad und allen kommenden USB-C-Geräten passt.
  • DREI Geräte gleichzeitig aufladenMit einem USB-C-Anschluss und zwei eingebauten USB-Anschlüssen können bis zu DREI Geräte gleichzeitig aufgeladen werden. Dank des Designs mit drei Anschlüssen können Sie diese tragbare Powerbank mit Familie und Freunden teilen.

$ 29,98
List Price: $ 39,99

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The 20-watt power bank from INIU is a bit heavy (the second heaviest on this list), but its dual-function USB-C port makes it a clear favorite for one of the best portable chargers for those who charge with the reversible port.

With the USB-C, you can charge both the device itself and other devices using the same USB-C cables, and you also have two additional USB-A ports for charging other devices.

Here are the facts about the power bank:

  • Capacity: 20000mAh
  • Outputs: 2x USB-A, 1x USB-C
  • Inputs: 1x USB-C
  • Weight: 365 grams
  • Dimensions: 13.4 x 7.1 x 2.5 cm

Advantages

USB-C input and output

Fastest 1-hour charging

Full charge of the power bank in 6 hours

Disadvantages

Heavy power bank due to its power

Furthermore, the INIU 20W 20000mAh Power Bank showed the best performance in the one-hour charging window and brought my empty iPhone 12 to 81% of its charge.

In 1 hour and 57 minutes, the iPhone was fully charged again. That is the second-best time compared to the Anker PowerCore Slim 10000 and is only one minute below.

The high capacity of 20000mAh also means that it charges my iPhone 12 approximately 4.7 times.

Here are some additional charging times (provided by the manufacturer):

  • Samsung S20: 3.4 charges
  • iPhone 13: 4.3 charges
  • iPad mini 4: 2.7 charges
  • AirPods Pro: 26.5 charges

EnergyCell 10000 Powerbank

The EnergyCell 10000 Powerbank is the best portable charger with high capacity in a small housing.

Power Bank, EnergyCell USB 10000mAh Powerbank Mini Kompakter Externer Akku Tragbares Ladegerät für Handy iPhone, Huawei, Samsung, Xiaomi und Andere Smartphones-Schwarz
4,4 (727)

Data updated 9 hours ago

Power Bank, EnergyCell USB 10000mAh Powerbank Mini Kompakter Externer Akku Tragbares Ladegerät für Handy iPhone, Huawei, Samsung, Xiaomi und Andere Smartphones-Schwarz

  • Kompakt und TragbarMit der kleinsten Abmessung von 10.3 x 5 x 2.5 cm und dem leichtesten Gewicht von 172 g ist EnergyCell 10000 mAh Powerbank superpraktisch für Alltagsleben, Ausflug und Reise.
  • 10000mAh KapazitätSie können damit iPhone 8 / 7 viermal, iPhone Xs, Galaxy S9, Huawei P20 usw. mehr als 2-mal aufladen. Sorgen Sie sich für den Mangel an Strom nicht mehr!
  • Schnelle Ladung Mit leistungsstarkem Output von 5V/2.4A ermöglicht die Powerbank eine schnellstmögliche Ladung. 5V/2A Input macht die Powerbank 2x schneller als die von 1A Input. Sparen Sie mehr Zeit.
  • Multi-SchutzSicherheit ist ganz einfach, wenn die Powerbank eine hochwertige Batterie und Chip hat. Hochwertige Batterie und intelligenter MCU Kontroller schützen Ihre Handys vor allen Gefahren.
  • Lieferumfang1 x 10000mAh Powerbank, 1 x Reisebeutel, 1 x USB Ladekabel, 1 x Bedienungsanleitung.

no price can be determined (B099S2SPTB)

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The EnergyCell 10000 Powerbank doesn't look like a 10,000mAh battery because it is small enough to be mistaken for a 5,000mAh power bank.

However, the power bank can provide about two full iPhone 12 charges, making it a surprisingly long-lasting power supply and one of the best power banks overall.

Here are the facts about the power bank:

  • Capacity: 10000mAh
  • Outputs: 1x USB-A
  • Inputs: 1x Micro-USB
  • Weight: 172 grams
  • Dimensions: 10.3 x 5 x 2.5 cm

Advantages

Unobtrusive size for its capacity

Fast charging

Disadvantages

Only one USB-A output

Don't be discouraged by the size, as the values for the 15-minute and one-hour charging time (20% and 71%) are in a fantastic range.

The only slightly disappointing thing is that there is one USB-A port, but that is logical considering the small size.

Here are some more charging times (provided by the manufacturer):

  • iPhone 8 / 7: 4 charges
  • iPhone XS: more than 2 charges
  • Galaxy S9: more than 2 charges
  • Huawei P20: more than 2 charges

Anker PowerCore 5000

The Anker PowerCore 5000 takes its time to charge your phone. But it is small and lightweight.

Anker PowerCore 5000 5000 mAh Noir
4 (9)

Data updated 9 hours ago

Compared to the higher-rated 5,000mAh charger on my list (the Intenso Powerbank XS 5000), the Anker PowerCore 5000 lags behind in terms of speed.

It only charged the iPhone 12 to 62% in the first hour of charging, which is the second-lowest value on the list.

Here are the facts about the power bank:

  • Capacity: 5000mAh
  • Outputs: 1x USB-A
  • Inputs: 1x Micro-USB
  • Weight: 136 grams
  • Dimensions: 10.7 x 3.3 x 3.3 cm

Advantages

Small and easy to carry

Fast short-term charging

18-month warranty

Disadvantages

Slow long-term charging speeds

The best aspect of the PowerCore 5000 is that it reached 19% after 15 minutes, which is 7% higher than the value of the Miady Powerbank.

There is nothing wrong with this charger, but it is also not particularly impressive.

If the Anker PowerCore 5000 is sold at an affordable price, I would even use it regularly. But at the end of the day, it is at the bottom of my list for a reason.

Here are some more charging times (from the manufacturer):

  • iPhone X: 1.3 charges
  • Galaxy S9: 1.1 charges
  • iPhone 8: 1.8 charges

Ekrist Powerbank 26800 mAh

The Ekrist Powerbank 26800 is a portable charger with high capacity.

Ekrist Powerbank【24800mAh Hohe Kapazität】 Externer Akku mit Dual-Ausgängen Ultrakompakter Akkupack mit 4 LEDs Klassische Version Externer Batterie Pack Power Bank für iPhone Samsung S20 usw.
4,5 (1613)

Data updated 9 hours ago

Ekrist Powerbank【24800mAh Hohe Kapazität】 Externer Akku mit Dual-Ausgängen Ultrakompakter Akkupack mit 4 LEDs Klassische Version Externer Batterie Pack Power Bank für iPhone Samsung S20 usw.

  • Powerbank mit hoher Kapazität : 24800mAh Tragbares Ladegerät kann Smartphones 5-7 mal aufladen, es ist kompatibel mit den meisten Handys und Tablets.Bitte beachten Sie die hohe Kapazität, sein Gewicht ist nicht sehr leicht (350 g) Größe: 150 * 15 * 75 mm, Es passt immer noch in Ihre Tasche.
  • Externer Akku Schnelles Laden: mit Dual USB Ausgang (5 V / 2.1 A und 5 V / 1A), powerbank der zwei Geräte gleichzeitig auflädt. Sie können die batterie pack mit Ihren Freunden auf Reisen teilen, Oder Ihre beiden Geräte müssen gleichzeitig aufgeladen werden.
  • 4 LEDs zeigt die verbleibende Batterie: Powerbank haben 4 LED-Leuchten, die Ihnen die Leistung von 0-25%, 25% -50%, 50% -75%, 75% -100% anzeigen kein Raten, wenn Sie aufladen müssen, Oder ist der Akku voll aufgeladen?
  • Akkupack mit Schutzsystem: Eingebautes Schutzsystem schützt die Power bank und Ihr Handy vor Überstrom und Kurzschluss. Die Powerbank schaltet sich automatisch aus, wenn ein Kurzschluss oder eine Überlastung auftritt.(Bitte halten Sie die Powerbank während des Ladens von hohen Temperaturen und geschlossenen Umgebungen fern)
  • Freundlicher After-Sales-Service: Ekrist bietet eine 24-monatige kundendienst (kostenloser Ersatz). Wenn Sie während des Gebrauchs Probleme haben, teilen Sie uns dies bitte mit. Unser Kundenservice ist 24 Stunden online. Freundliche Grüße

$ 109,95

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I don't like looking at no-name brands, but due to the many reviews on Amazon, I had to order the Ekrist Powerbank 26800 mAh. And unlike the INIU power banks, the Ekrist confirms my suspicion.

The main positive features of the power bank are that its 25,800mAh power supply was able to charge the iPhone 12 four times.

However, there are other larger power banks that deliver a lot of juice and that you should choose instead.

Here are the facts about the power bank:

  • Capacity: 26800 mAh
  • Outputs: 2x USB-A
  • Inputs: 1x Micro-USB
  • Weight: 350 grams
  • Dimensions: 10.7 x 3.3 x 3.3 cm

Advantages

Tons of power

Fast charging

LED battery level indicator

Disadvantages

Heavier than most

No USB-C charging port

The disadvantages are easy to see. Foremost, there is no USB-C input or output. Additionally, the charging process was slow in tests, with insignificant results in the 15-minute and 1-hour windows (17% and 72%) and one of the longest times to charge an iPhone 12 from 0 to 100% (2 hours and 21 minutes).

Here are some more charging times (from the manufacturer):

  • iPhone XR: 5.2 charges
  • Galaxy S9: 4.6 charges
  • iPhone 8: 6.5 charges

Miady 10000 mAh 2-Pack

Low price and low performance - that's what the Miady Powerbank 2-Pack stands for.

Miady 2-Pack 10000mAh Powerbank Externer Akku mit USB C Eingang Schnellladegerät Tragbares Ladegerät für Handy,Tablet und weitere USB-Geräte
4,4 (1932)

Data updated 9 hours ago

Miady 2-Pack 10000mAh Powerbank Externer Akku mit USB C Eingang Schnellladegerät Tragbares Ladegerät für Handy,Tablet und weitere USB-Geräte

  • 2-Pack 10000mAh Powerbank - Zwei 10000mAh-Akkus nicht nur zum tragbaren Laden, sondern auch für zu Hause. So können Sie mobile Geräte aufladen, ohne an eine Steckdose gebunden zu sein. Jeder von ihnen lädt das 2,4-fache für das iPhone X, das 3,6-fache für das iPhone 8 und das 2,2-fache für das Samsung Galaxy S9 vollständig auf.
  • Dual Output & Input - Jedes Gerät verfügt über 2 USB-Ausgänge, die alle angeschlossenen Geräte erkennen und den Stromausgang effizient auf bis zu 5 V 2,1 A verteilen. Die USB C- und Micro USB-Anschlüsse können die Batterie selbst in 5 Stunden bei 5 V 2,0 A vollständig auffüllen.
  • Zuverlässige Li-Polymer-Zelle - Dank des Li-Polymer-Akkus ist das Ladegerät viel sicherer als jedes Li-Ion-Ladegerät. Außerdem ist es leichter und schlanker, als Sie es in Flugzeugen tragen können.
  • Small & Slim - Es fühlt sich unglaublich kompakt für eine 10000-mAh-Powerbank an, wiegt nur 218 g und ist nur 14 mm dick. Das griffige Design ist einfach zu halten, einfach in eine Tasche zu werfen und unglaublich tragbar.
  • Was Sie bekommen - 2 * Miady 10000mAh USB Portable Charger (Weiß & Schwarz); 2 * USB-Kabel; 1 * Benutzerhandbuch. Wir bieten einen 24 * 7 freundlichen Kundendienst und unterstützen unsere Produkte auch 18 Monate lang. Sie können uns gerne kontaktieren.

$ 35,08

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The Miady Powerbank is popular for one reason only: you get two 10,000 mAh chargers for around €26. However, the savings are not worth what you lose in charging performance.

The Miady Powerbanks performed the worst in every category. The three-hour charging time for an iPhone 12 was 39 minutes longer than the second worst rating from Ekrist. And the values for the 15-minute and one-hour charging time (12% and 39%) are also low, with the 39% being particularly poor (the next highest value is 62% with the Anker PowerCore 5000 Powerbank).

Here are the facts about a powerbank:

  • Capacity: 10000 mAh
  • Outputs: 2x USB-A
  • Inputs: 1x USB-C, 1x Micro-USB
  • Weight: 350 grams
  • Dimensions: 14 x 6.7 x 1.6 cm

Advantages

The combo price makes buying 2 batteries affordable

The USB-C and Micro-USB ports can fully charge the battery itself in 5 hours at 5V 2.0A

Disadvantages

Last place in all charging times

Buying Guide: How to Choose the Best Power Bank for You

Maybe you don't even know which power bank is right for you?

Let's now look at the facts you should clarify before you shop.

Before you buy a power bank, you should consider which facts are important to you for your needs
Before you buy a power bank, you should consider which facts are important to you for your needs

Find the right capacity of the power bank

Often you see a four- to five-digit number followed by the letters mAh - for example, 5000 mAh, 10000 mAh or 20000 mAh. That is your first important indicator of how well the charger is suited for you.

If you constantly charge your smartphone and other devices, you should opt for at least 10,000 mAh. For each additional device you charge, you should add at least 5,000 mAh to the desired capacity.

I use the Anker PowerCore II Powerbank with 20000 mAh when I'm on the go for several days. With it, I manage to survive a whole week and have to charge my smartphone about 4 to 5 times.

If you're looking for even more power, then the Anker Power 347 Powerbank with a 40,000 mAh battery might be the right choice.

Anker Portable Charger, 347 Powerbank (PowerCore 40K), 40000mAh Akku mit USB-C Ladeport, Kompatibel mit MacBook, iPhone 13 / Pro/Pro Max/Mini, Samsung Galaxy, iPad, AirPods, Schwarz
4,5 (556)

Data updated 9 hours ago

Anker Portable Charger, 347 Powerbank (PowerCore 40K), 40000mAh Akku mit USB-C Ladeport, Kompatibel mit MacBook, iPhone 13 / Pro/Pro Max/Mini, Samsung Galaxy, iPad, AirPods, Schwarz

  • KRAFT & KAPAZITÄT: Die supergroße Zellenkapazität von 40.000 mAh bietet 8,8 Ladungen für das iPhone 13, 6,8 Ladungen für das Samsung S22 Ultra und 2,3 Ladungen für das MacBook Air 2020.
  • ENORME LADELEISTUNG: 30W USB-C-Leistung gewährleistet mehr als genug Power, um dein iPhone 13 in nur 28 Minuten auf 53% Akku aufzuladen.
  • POWER FÜR 4: Ausgestattet mit 2 USB-A- und 2 USB-C-Anschlüssen ist das tragbare Ladegerät ideal zum Aufladen von Laptops, Smartphones, Tablets und mehr.
  • SMARTE KOMPATIBILITÄT: Unterstützt die Power Delivery-Ladetechnologie und funktioniert einwandfrei mit einer Vielzahl von Geräten!
  • WAS DU BEKOMMST: Eine Anker 347 Powerbank (PowerCore 40K), USB-A auf USB-C Kabel, 18 Monate Herstellergarantie sowie freundlichen Kundenservice.

no price can be determined (B09VP9QJSS)

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You just want to prevent your device from giving up late at night?

Then a power bank with less than 5,000 mAh is sufficient - provided that you remember to charge it regularly.

Find the right connections

If you only have older devices, then you probably don't need a USB-C port. In that case, buy the power bank that matches your price.

If you are the type of person who wants to charge their devices quickly, then you should look for a power bank that has "PD" in its name.

The latest power banks charge other devices the fastest and use the Power Delivery (PD) standard. Thanks to their USB-C ports, you can also charge these power banks with the same cables used for modern laptops.

But be careful, fast charging is not always useful. Read my tips below.

How I selected the power banks

My motto when it comes to selection: durability and capacity are more important than convenience.

In everyday life, most people use power banks to quickly charge a single device when they can't find a power outlet.

In an emergency, however, you do not know when you will have access to the power grid again. Or on a multi-day Bushcraft tour, you also need to rely on your power bank.

The optimal effect is currently achieved by power banks with a capacity of 10000 mAh to 20000 mAh. The interplay between energy density and weight is optimal in these devices.
The optimal effect is currently achieved by power banks with a capacity of 10000 mAh to 20000 mAh. The interplay between energy density and weight is optimal in these devices.

Therefore, you should use your power bank in a way that maximizes its storage capacity and long-term lifespan.

The optimal effect is currently achieved by power banks with a capacity of 10000 mAh to 20000 mAh. The interplay between energy density and weight is optimal in these devices.

The main goal is to pack as much energy as possible into a battery pack that is also suitable for longer hikes.

Tips for charging your devices with a power bank

Avoid fast charging

Earlier, I wrote about the fast charging through the "PD" technology. The technology is advantageous, but also has disadvantages.

Because you should avoid fast charging (usually via USB-C ports). Due to chemical peculiarities, the slower you discharge a power bank, the more of its nominal capacity you can get out of it.

If you are not in a hurry, you should avoid fast charging or high voltage ports that discharge the battery faster.

If you are not in a hurry, you should avoid fast charging or high voltage connections that discharge the battery faster.
If you are not in a hurry, you should avoid fast charging or high voltage connections that discharge the battery faster.

To extend the lifespan of your battery, you should, whenever possible, use the simple USB-A port with 5 V/2 A (or even lower).

Tip: The Anker PowerCore II Powerbank can charge smaller devices (like headphones) slowly. To achieve this, press the button on the power bank for 3 seconds to activate the maintenance charging mode. This way, connected devices will be charged slowly, and the battery will last longer.

Stay flexible with the connections

In an emergency, you want to be flexible to operate multiple types of devices with common cables (including devices/cables you may find later), such as rechargeable AA/AAA batteries, headlamps, phones, tablets, and radios.

In general, you are more flexible with a USB-A port on the power bank than with a USB-C port, as there are many A-to-B and A-to-C cables available, but USB-C cables to A and B are still rare.

Keep your power bank cool and avoid built-in solar panels

Batteries hate heat. The cooler they are, the longer they last and the more charge you can get out of them.

For example, this means that you should place the power bank in the shade when you connect the solar charger (check out my list of the best solar panels here).

I do not recommend power banks with solar panels because the battery is usually exposed to heat and the solar panels charge very slowly
I do not recommend power banks with solar panels because the battery is usually exposed to heat and the solar panels charge very slowly

Some power banks are equipped with a small solar panel, which is integrated on one side or can be unfolded. But I consider this to be pointless because practically speaking, you would have to leave a 20000mAh power bank in the sun for several days to fully charge it.

The combination of the products therefore does not really add any value. You are only risking that the battery overheats.

Leave the gimmicks behind

Avoid unnecessary extras and "survival" gimmicks. Keep things simple and focus on the main goal of saving energy.

That means you don't have a need for power bank features, such as the ability to function as a USB hub. If you need a USB hub, buy a separate one.

Similarly, it is with the "survival" features, such as adding a compass, a whistle, or a flashlight. For me, these gimmicks are worthless and a sign of an inferior product that tries to lure amateur buyers.

Waterproofing, dust protection, and a design suitable for outdoor use, however, are great.

Why should you take two batteries with you?

If you are choosing a Li-Ion power bank for emergencies or your trips, you should always take the maximum battery capacity that you can fit within your weight budget.

More energy storage capacity means:

  • Longer lifespan, as you need fewer charge/discharge cycles for the same amount of energy from the device.
  • More actual capacity, as a larger bank discharges (at the same power consumption) slower than a smaller one, and the slower you discharge your bank, the more charge you can get out of it.
  • You can take in more charge when you have the opportunity, either from solar cells, a power outlet, or a larger battery.
  • Higher chances of having power when you need it.

And now here is my recommendation: According to the current state of technology in 2021, it is best for outdoor enthusiasts to bring two 10,000mAh batteries instead of one huge 20,000mAh battery.

If your luggage allows it, it's better to take 2x 10,000 mAh power banks instead of one large 20,000 mAh power bank
If your luggage allows it, it's better to take 2x 10,000 mAh power banks instead of one large 20,000 mAh power bank

The reasons for this are as follows:

  • "Two are one, and one is none." This motto illustrates how important it is to have a backup for essential equipment. Any kind of redundancy you can incorporate into your preparation (without compromising in other areas) will give you a significant advantage in any emergency.
  • The weight does not increase significantly, as you are carrying the same number of batteries. You can carry one of them in a power bank or carry one in two separate smaller power banks, but you still have the same number with approximately the same total weight and charge.
  • The power banks can have different connection formats and functions, giving you more options. You could choose a power bank with micro-USB and USB-A, and another one with USB-C and USB-A.

What does mAh mean for a power bank?

The unit milliampere-hour (mAh) is generally used to describe the capacity of a battery.

A widespread misconception is that you can simply divide the capacity of a battery by the capacity of a smartphone/tablet to determine how many cycles you can charge the smartphone/tablet with this power bank.

Conclusion about the best power bank

Which power bank should you buy now?

I can clearly recommend the brands INIU and Anker to you. These two manufacturers know how to build power banks and satisfy their customers.

If you are on the go for 2 to 3 days and need to charge your smartphone or another small device every day, a 10,000mAh power bank is sufficient. Choose the INIU Powerbank 10000 or the Anker PowerCore Slim 10000. Both differ in price by 10 €, which could be the decisive argument for you. Furthermore, check the connection options for your needs.

If you are on the go for 4 days or more, it's better to get yourself a 20,000mAh power bank. Here, I will come back to the two big players and I recommend the INIU 20W 20000 Powerbank or the Anker PowerCore II 20000. They also differ in price. I always bring the Anker PowerCore II 20000 with me on my travels.

If you just need some juice for your battery in the evening, then grab the Intenso Powerbank XS 5000, which is available for only 10 € and is smaller and lighter.


And now, what about you? Were you able to find a power bank that suits you?

Or are there models missing from the list here?

Take care, Martin
Martin Gebhardt

Author of the guide


Martin Gebhardt

Hey, I'm Martin. On my blog, you will learn the basics and numerous details about living in the wild. I think survival, bushcraft and the good life in nature are the keys to happiness. Find me here on Instagram or on YouTube. You can find more about my mission on the About Me page.

Since this is a gear guide, here ...


🤝8 reasons to trust my recommendation

  1. Practical Experience: I have tested most of the products I recommend under extreme conditions myself.

  2. Independence: As a wilderness mentor, I am not tied to any specific brands - this means my recommendations are unbiased.

  3. Expertise: My many years of experience allow me to understand the intricacies and details of various products that a layperson might overlook.

  4. Target group understanding: I understand the needs and challenges of outdoor enthusiasts, from beginners to seasoned experts.

  5. Quality focus: I attach great importance to quality and longevity. These are characteristics that are crucial in the wild.

  6. Clear communication: I try to explain the pros and cons of each product clearly and understandably so that you can make an informed decision.

  7. Currentness: I always keep my guides up to date and adapt them to new findings or products.

  8. Community Feedback: I work in wilderness schools, teach courses myself, attend courses and am active in various outdoor and survival communities and therefore integrate the feedback and experiences of others into my recommendations.

So when I introduce the best survival knives or flashlights, you can be sure that every recommendation is based on solid experience and extensive knowledge.

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