Knowing how to choose a power bank for your phone is an important step when just leaving the house for a day, much less planning a long or overseas journey. As overseas travelers are focused on connectivity more than ever before, a reliable, affordable power bank is a must-have for anyone setting out to explore faraway lands.

As you explore the various options for power banks, here are some key questions to consider when choosing a phone power bank:

  • How many devices will need a portable charge during your travel?
  • How often do you expect to be away from easily accessible power sources?
  • How long do you need a charge to last on your devices?
  • Are there weight limitations involved with your baggage (for example, will you be hiking and carrying heavy gear and equipment during your travels)?
  • Do you have older devices that might present compatibility issues?
  • What is your budget?

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About How to Choose a Power Bank for Your Phone

First, we’ll begin by explaining how a power bank works. A portable power bank stores electrical energy supplied by an outlet and allows you to “deposit” that energy later into a mobile device. Power banks have to be charged, sometimes for a considerable period of time, but will store enough electrical energy to fully power a device several times over. It should be noted that power banks will always experience loss due to resistance, so the full capacity of the power bank is not transferred to the device, and this is a factor when we calculate and estimate how many times a particular device can be charged. Additionally, the lower the charge on your device, the more the portable power bank has to work to recharge it. So, ideally, you do not want to wait until the device is fully depleted of battery life before using a portable power bank.

Almost any device that is USB charged can be used with a portable power bank provided you remember to keep the power bank charged! It is best to remove the power bank from the charge as soon as it is full and most have an LED indicator to display full capacity. Some come with an “auto cutoff” feature as well.

When deciding how to choose a power bank for your phone, check your devices for their battery capacity, which is measured in milliamp hours (mAh). As long as your portable power bank exceeds the mAh number on the device, you will get a full charge out if it, if not several. Be sure to consider if you plan to charge multiple devices. If this is the case, you will need a portable power bank with more than one output to charge the devices simultaneously. Obviously, these models can be more expensive, but they can also save precious time during travel.

You will also need to check compatibility with the portable power banks to make sure your devices are included or you can compare its specs to your existing charger. You do not want to find out in the midst of travel that your cable and the power bank produce a very slow charge. Additionally, the output voltage of the power bank should be equal to or higher than your device.

A general guideline for the charge provided by varying mAh batteries is as follows:

  • 1500 mAh: typically one full charge of a cell phone
  • 5200 mAh: typically two full charges of a cell phone and a tablet to 50%
  • 10000 mAh: typically four full charges of a cell phone and a tablet to 100%

Higher mAh units are available as well. These will be more expensive options, but possibly beneficial to those with numerous devices to charge during travel.
Environmental conditions can affect the lifespan of a portable power bank and you should keep this in mind as you decide to invest in one. For example, if you plan to travel for long periods of time in extreme weather conditions, this may have an impact on the long-term durability of the power bank you choose.

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Choose a Power Bank for Your Phone

Staying in touch with friends, family or work at home is a must for many globetrotters. Technology allows us to keep our loved ones connected to our journeys and we can share thrilling moments as they happen, thanks to smartphones and tablets. Since a smartphone or tablet is only as good as its battery life in many remote locations, where power outlets aren’t readily available for a quick charge, consider learning how to choose a power bank for your phone.

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Recommended Phone Power Banks & Portable Chargers

A few recommended portable power banks for travelers and some of their key features are outlined below and also check out How to Choose a Power Bank for Your Phone for our top tips.

Anker PowerCore 20100 Portable Charger

The Anker PowerCore intelligently identifies connected devices and can charge the iPhone 6s up to seven times, the Galaxy S6 up to five times, or the iPad mini 4 twice.

  • VoltageBoost feature ensures the charging speeds are unaffected by the use of long or old cables.
  • Comes with a portable charger, a Micro USB cable, a convenient and protective travel pouch, a welcome guide, and an 18-month warranty for users.
  • Weighs 12.56 ounces and can simultaneously charge two devices.
  • Anker PowerCore 20100 Portable Charger Review

Hokonui Wireless Portable Charger

Hokonui Wireless Portable Charger is a top Amazon choice with rave reviews by most customers, many of whom claim it is the best portable charger they've ever used.

  • Using the wireless port, USB ports and Type-C port, you can charge up to 4 Devices at once
  • Supports fast charging on phones with this feature
  • Charges itself quickly, in 4-5 hours, which is super fast compared to most other portable batteries
  • Hokonui Wireless Portable Charger Review

Kuppet Wireless Charger Power Bank

The KUPPET 2-in-1 Wireless Charger and Power Bank will last you for countless trips across the ocean and is absolutely loaded with features.

  • Supports charging up to 3 three devices at one time
  • You may charge wirelessly or through Type-C USB or micro USB inputs
  • Total capacity of 20,000 mAh, which allows it to fully charge the average smartphone battery in a fraction of the time of most competing products in addition to a sel charging time of almost half that of similar products
  • Kuppet Wireless Charger Power Bank Review

Amazon Portable Phone Charger Best Sellers

Bestseller No. 1
Anker PowerCore 10000, One of The Smallest and Lightest 10000mAh External Batteries, Ultra-Compact Portable Charger, High-Speed Charging Technology Power Bank for iPhone, Samsung Galaxy and More
11,584 Reviews
Anker PowerCore 10000, One of The Smallest and Lightest 10000mAh External Batteries, Ultra-Compact Portable Charger, High-Speed Charging Technology Power Bank for iPhone, Samsung Galaxy and More
  • The Anker Advantage: Join the 30 million+ powered by our leading technology.
  • Remarkably Compact: One of the smallest and lightest 10000mAh portable charger. Provides almost three-and-a-half iPhone 8 charges or two-and-a-half Galaxy S8 charges.
  • High-Speed Charging: Anker's exclusive PowerIQ and VoltageBoost combine to deliver the fastest possible charge for any device. Qualcomm Quick Charge not supported.
  • Certified Safe: Anker's MultiProtect safety system ensures complete protection for you and your devices.
  • What You Get: Anker PowerCore 10000 portable charger, Micro USB cable, travel pouch, welcome guide, our worry-free 18-month warranty and friendly customer service. USB-C and Lightning cable for iPhone / iPad sold separately.
Bestseller No. 2
Portable Charger Power Bank 【25800mAh】Ultra High Capacity External Battery Pack High-Speed Recharging 2 USB Output with 4 LED Display Battery Phone Charger for Smart Phones,Android Phone,Tablet & More
129 Reviews
Portable Charger Power Bank 【25800mAh】Ultra High Capacity External Battery Pack High-Speed Recharging 2 USB Output with 4 LED Display Battery Phone Charger for Smart Phones,Android Phone,Tablet & More
  • ※【COLOSSAL CAPACITY & UNIVERSAL COMPATIBILITY】※ The 25800mah portable charger can charge most 5V USB-powered devices multiple times, such as iPhone, iPad, Samsung, Sony, Huawei, HTC, LG, Nexus, Tablet, camera, Bluetooth, GPS and more smartphones. Supply you enough power for watching or gaming, the best choice for your business trip or other outdoor activities needs.
  • ※【HIGH-RECHARGING SPEED】※ Fully recharge the portable charger in just 14-16 hours with a 2.1A charger and 30-32 hours with a 1A charger. Perfect size fits neatly in palm or pocket, give you enough power every moment, no worry about the smart devices out of power anymore.
  • ※【CHARGE 2 DEVICES SIMULTANEOUSLY】※ The Pxwaxpy power bank comes with dual 2.0 USB ports provide a total current output of 3.1A for simultaneous charging. Freely to share the power with your friends or families, enjoy more fun when in party and games.
  • ※【POLISHED SURFACE & ADVANCED SAFETY TECHNOLOGY】※ The newest fashionable polished surface design with 4 LED indicators (25%--50%--75%--100%) to clearly show the remaining power during charging. Using reliable grade A+ lithium polymer battery and intelligent power manage technology provides superior protection for your devices against excessive current, overheating, and overcharging, making charging safer.
  • ※【WAHT YOU GET】※ 1 X 25800mAh portable charger, 1 X Micro USB cable, 1 X User Guide, 30-Day Money Back Guaranteed & Free 24-Month Warranty. Please feel free to contact us if any product problem
Bestseller No. 3
INIU Portable Charger, 10000mAh Power Bank, 4.8A High-Speed 2 USB Ports with Flashlight Battery Pack, Ultra Compact Phone Charger Compatible with Iphone XS X 8 7 6 Samsung Galaxy S9 Note 9 iPad Tablet
2,389 Reviews
INIU Portable Charger, 10000mAh Power Bank, 4.8A High-Speed 2 USB Ports with Flashlight Battery Pack, Ultra Compact Phone Charger Compatible with Iphone XS X 8 7 6 Samsung Galaxy S9 Note 9 iPad Tablet
  • #1 compact and high-speed power bank powered by INIU Leading technology
  • 1. [High-speed charging] smart IC charge 1. 4X faster than standard charger, 2. 4a output each USB port (not support QC 2. 0/ 3. 0 function like Samsung S8, S7, S6 Note 5 QC mode).
  • 2. [10000mAh high capacity] fully charge your iPhone 8 for 3 times. Best for all day trips and no worry about out of battery anymore.
  • 3. [Two USB ports] charge two devices for you at the same time. Enjoy sharing the battery with your family. Compatible with all smartphones. No iPhone/USB C cable included.
  • 4. [Convenient LED flashlight] perfect design for camping, travel, business trip and more. Simply press the power button twice to turn it on/off.
SaleBestseller No. 4
[Upgraded] POWERADD Slim 2 Most Compact 5000mAh External Battery 2.1A Ouput Portable Charger with Smart Charge for iPhones, iPad, Samsung Galaxy, HTC and More - Blue
5,236 Reviews
[Upgraded] POWERADD Slim 2 Most Compact 5000mAh External Battery 2.1A Ouput Portable Charger with Smart Charge for iPhones, iPad, Samsung Galaxy, HTC and More - Blue
  • Full of fashion and lovely shape.
  • Detects your device to deliver its fastest possible charge speed up to 1 amp.
  • High Capacity: Add one and a half charges (over 7 hours talktime) to an iPhone 5s, almost one full charge to a Galaxy S5 or one full charge (70+ hours of audio playback) to most other phones.
  • Ultra Compact: Recharges in 3-4 hours with a 0.8 amp adapter (not included) and the included Micro USB cable.
  • What You Get: Mini 4500mAh Portable Charger External Battery Power Bank, USB cable, welcome guide, our fan-favorite 24-month warranty and friendly customer service.
Bestseller No. 5
Portable Charger Power Bank【24800mAh】 HETP High Capacity External Battery Pack with 4 LED Lights Ultra-Compact High-Speed Recharging Battery Charger for Smart Phone Android Tablet and More -Black
383 Reviews
Portable Charger Power Bank【24800mAh】 HETP High Capacity External Battery Pack with 4 LED Lights Ultra-Compact High-Speed Recharging Battery Charger for Smart Phone Android Tablet and More -Black
  • 【24800mAh HIGH CAPACITY PORTABLE CHARGER】24800mAh portable power bank charge Phone 8: 6-7 times, Phone 8Plus: 4-5 times, Phone X: 5-6 times, Phone 7: 6-7 times, Phone 7Plus: 4-5 times and other Android Devices multiple times. Suitable for a business trip or other outdoor activities.
  • 【HIGH-SPEED RECHARGING】This Portable Charger manufactured by top grade Lithium-Ion Cells materials. Uses Grade A rated battery cells with UL certificated. Recharges fully itself in 10 hours with original cable or adapter (5V,2A), phone chargers (generally 1A) may take up to 20 hours. Charge two devices for you at the same time and enjoy sharing the battery with your family.
  • 【PORTABLE CHARGER WITH 4LED LIGHTS】The 4LED Power indicators show the remaining power for you convenient to know when the charger is fully charged and how much power is available(0--25%--50%--75%--100%).
  • 【POWER BANK WITH SAFEST CHARGING TECHNOLOGY】Built-in Advanced Smart protection system protects your devices against over-current,over-heating,over-charging, over-voltage and short circuits protection.No worry about the charging accidents anymore .
  • 【WHAT YOU GET】HETP 24800mah Portable power bank x 1,Micro USB cable x1,User manual x1. Also you will receive 30-Day Money Back Guaranteed, 18-Months Warranty and Lifetime Technical Support. Just feel free to contact us if you have any problems with our power bank.



 
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