How to Choose a Power Bank for Your Phone
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How to Choose a Power Bank for Your Phone

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? How many ports do you need?
  • Which ports are required? USB, Type C?
  • Weight of the charger
  • Do you want a device compatible with your phones fast charge capabilities?
  • Wireless, cord, or both charging?
  • How often do you expect to be away from easily accessible power sources?
  • Do you have older devices that might present compatibility issues?
  • What is your budget?

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Phone Power Bank Charge Guidelines

Almost any device that is USB charged can be used with a portable power bank provided you remember to keep the power bank charged! Very few (as in none) portable chargers offer pass-through technology which would allow you to charge your charger while the charger is charging your devices. You must first charge your charger, and then use it to charge your devices. 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.

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 also available and will be more expensive, but likely beneficial to those with numerous devices to charge during travel.


Recommended Phone Power Banks & Portable Chargers

A few recommended portable power banks for travelers and some of their key features are outlined below and at Best Power Banks for Your Phone.

Amazon Wireless Phone Charger Best Sellers

Bestseller No. 1
Foldable Wireless Charger, 3 in 1 Fast Wireless Charging Stand for iPhone 13/13 Pro/12/12 Pro/11/11 Pro Max/XR/X/Xs/8 Series,iWatch,Samsung Cell Phone (Wireless Charger, Black)
911 Reviews
Foldable Wireless Charger, 3 in 1 Fast Wireless Charging Stand for iPhone 13/13 Pro/12/12 Pro/11/11 Pro Max/XR/X/Xs/8 Series,iWatch,Samsung Cell Phone (Wireless Charger, Black)
  • 🔌【Designed for Simplify life】The fast wireless charger leaps into wireless epoch along with you, which solves the problem for messy charger cables; slimmest 3 in 1 wireless charger supports three devices - iPhone, AirPods and Apple Watch in the meantime
  • ⚡【High-Charging Speed】After many tests and feedback from fans, we gave away an 18W 3.0 adapter and USB-C Charging Cable, which can charge your mobile phone at high speed and safely. Case friendly - no need to take off your phone case while charging
  • 🔋【Unprecedented High-tech】Our wireless charging station obtained CE, FCC and Qi certification, the internal increase of 2 coils, charging your phone horizontally, intelligent current protection system, Reasonable internal circuit design can prevent overcharge damage to the equipment battery and ensure safe charging of the device.(Note: remove the magnetic or metal accessories), we designed a touch switch, the charging light can be turned off at night, Sleep-Friendly
  • 👍【Highlights and Satisfied Fans】Snap and go, Angle-Adjustable Phone wireless charger stand, Choose 4 different angles, enjoy your favorite movies while charging📺. Small and portable-easy to carry, easy to put in the bag. Can take your business, vacation and all travel, it’s your travel companion✈
  • 📲【More Devices Support】 【APPLE】iWatch 6/5/4/3/2/1/se; AirPods Pro/2 ;📱iPhone 12, iPhone 12 Pro/Pro Max, iPhone 11/11 Pro/Pro Max, iPhone X/ XS/ XS Max/ XR, iPhone 8/8 Plus;【SAMSUNG】Samsung Galaxy S10/S10+, S9/S9+, S8/S8+, S7/S7 Edge, S6 Edge Plus, Note 10 and more.Some models for【NOKIA】【LG】【GOOGLE】【Xiaomi】【SONY】【Microsoft】【BlackBerry】 If you have any doubts please contact me
SaleBestseller No. 2
Anker Wireless Charger, 313 Wireless Charger (Stand), Qi-Certified for iPhone 12, 12 mini, 12 Pro Max, SE, 11, 11 Pro, 11 Pro Max, XR, XS Max, 10W Fast-Charging Galaxy S20, S10 (No AC Adapter)
71,536 Reviews
Anker Wireless Charger, 313 Wireless Charger (Stand), Qi-Certified for iPhone 12, 12 mini, 12 Pro Max, SE, 11, 11 Pro, 11 Pro Max, XR, XS Max, 10W Fast-Charging Galaxy S20, S10 (No AC Adapter)
  • The Anker Advantage: Join the 50+ million powered by our leading technology.
  • A Galaxy of Speed: A high-efficiency chipset provides 10W high-speed charging for Samsung Galaxy. iPhones get a boosted 5W charge at 10% faster than other wireless chargers.
  • Flip It: Charge in landscape orientation while watching videos, or portrait mode for messaging and facial recognition.
  • Case Friendly: Don't fumble with your phone case. PowerWave charges directly through protective cases. Rubber/plastic/TPU cases less than 5 mm thick only. Magnetic and metal attachments or cards will prevent charging.
Bestseller No. 3
25W Wireless Charger,Foldable 2 in 1 Wireless Charging Station for Apple iPhone 13/13 Pro/12/12 Pro/11/SE/X/8/Airpods,PDKUAI 15W Fast Dual wireless induction charge Stand For Samsung phone/Galaxy Buds
254 Reviews
25W Wireless Charger,Foldable 2 in 1 Wireless Charging Station for Apple iPhone 13/13 Pro/12/12 Pro/11/SE/X/8/Airpods,PDKUAI 15W Fast Dual wireless induction charge Stand For Samsung phone/Galaxy Buds
  • 🔋【Charge 2 devices at once】 just place your phone on the charging surface, enjoy fast wireless charging.With dual pads charging surfaces, supports fast charging speed for IPhones and AirPods,Samsung phone and galaxy buds. Advanced Qi wireless charging technology enables you to charge your device without plugging in a cable.
  • 🔋【Slim and Foldable Design】: Lightweight,sleek,Foldable design. This wireless charging pad takes up very little space make it easier to put it in pockets, a high speed wireless power charging pad can be easily carried during travel or business,This charger feels solid and looks great no matter using it in the office or at home.
  • 🔋【20W/15W/10W/7.5W/5W Wireless Charging】Fast wireless charge up to 15W for the iPhone 13/13 Pro/13 Pro Max/13 Mini/12/12 Pro/12 Pro Max/12 Mini,Samsung Galaxy Note 20/Plus,S21/S20;10W for Samsung Galaxy S10,S9,S8, Note 10/9/8/7;7.5W qi wireless charging for iPhone 11/11 Pro/11 Pro Max/SE 2020/Xs Max/XR/XS/X/8/8 Plus, New iPhone SE and standard 5W wireless charge for All Qi-enabled phones, AirPods 2; AirPods Pro, Galaxy buds/buds+, pixel buds and more.
  • 🔋【Premium & Safe Design】 Designed with anti-slip pads on the bottom help keep your pad in place, heat dissipation holes at the bottom to keep your phone cool while charging. integrated smart chip inside provides better temperature control, surge protection, short-circuit prevention, overheating, overvoltage prevention and more
  • 🔋【What You Get】1*Dual Wireless Charging Pad, 1*USB-C Charging Cable, 1*User Manual.Charging power straight through phone cases within 6mm. Cases made of metal, attachments such as magnets, cards, grips will interfere with charging. ▲(NOTE: The wireless charger must work with 18W/QC 3.0 Adapter(NOT INCLUDED))
Bestseller No. 4
SAMSUNG Wireless Charger Fast Charge Pad (2021), Universally Compatible with Qi Enabled Phones (US Version), Black
1,152 Reviews
SAMSUNG Wireless Charger Fast Charge Pad (2021), Universally Compatible with Qi Enabled Phones (US Version), Black
  • Powers your favorite devices. The Wireless Charger is compatible with both Android and Apple devices, so you can simply place and charge your phone or favorite earbuds.
  • Designed to fit your space. Simply place the Wireless Charger where you want it. With a slim, smooth and compact design, it fits even in your smaller spaces, so it's easy to access when your phone or earbuds need a little extra juice.
  • Charge fast with Fast Charging. Your device gets back to 100% quickly by harnessing up to 9W of Fast Charging support. The pad is also compatible with PD and Adaptive Fast Charging travel adapters so you don't need to wait long to get back to filming.
  • LED color during the day, dimmed at night. This Friendly LED uses color to let you know the device's charging status, while dimming at night so the light doesn't disturb your sleep.
Bestseller No. 5
Wireless Car Charger, CHGeek 15W Qi Fast Charging Auto Clamping Car Charger Phone Mount Windshield Dashboard Air Vent Phone Holder for iPhone 11 Pro Max Xs, Samsung Galaxy S20, S10+ S9+ Note 9, etc
5,612 Reviews
Wireless Car Charger, CHGeek 15W Qi Fast Charging Auto Clamping Car Charger Phone Mount Windshield Dashboard Air Vent Phone Holder for iPhone 11 Pro Max Xs, Samsung Galaxy S20, S10+ S9+ Note 9, etc
  • 【QI WIRELESS CHARGER】Built-in upgraded chip, CHGeek wireless car charger intelligently identify and charges your device with the fastest speed in safe. Support max 15W max Fast Charger for LG V50 / V35 / V30, 10W Fast Charger for Samsung Galaxy S20/S20+, Max 7.5W Fast Charger for iPhone 11/11 Pro Max/1XS Max/XS/X, 5W for Other Qi-Enabled Phones.For 15W 10W, 7.5W fast charging mode, QC 3.0 car charger adapter is required as its power source.(1 * usb c charging cable is included in the package)
  • 【INTELLIGENT IDENTIFICATION & SMART CHARGING】When connecting to the cable, the phone car mount will automatically clamp when phone is dropped in, make your driving easier and safer. A gentle touch on the 2 sides button of the charger can make the arms open. When your phone is fully charged, the wireless car phone charger will automatically power off and protect the battery of your phone
  • 【FOREIGN OBJECT DETECTION with LED ALARM】When there is a metal substance between the wireless car charger mount and the phone, the car wireless charger will stop charging and the red light flashes to alarm. Effectively avoid the damage of the mobile phone caused by the high temperature of the metal
  • 【CASE FRIENDLY & FLEXIBLE ANGLE ADJUSTMENT】CHGeek phone holder for car supports charging through phones cases up to 6mm thick. Please note that cases made of metal, external attachments such as magnets, credit cards, grips, and stands will interfere with charging. The 360°rotating sphere and the retractable & foldable bracket allows for optimum viewing and safe driving
  • 【2-IN-1 Design】 Combines the Qi Wireless Charger and a car cell phone holder, allows for a secure hands-free experience. Keep you away from the tangled locating cords or cables. Cell phone holder is suitable for car Windshield Dashboard Air Vent installation, and makes GPS and phone call more convenient


Amazon Portable Phone Charger Best Sellers

Bestseller No. 1
2-Pack Miady 10000mAh Dual USB Portable Charger, Fast Charging Power Bank with USB C Input, Backup Charger for iPhone X, Galaxy S9, Pixel 3 and etc …
49,830 Reviews
2-Pack Miady 10000mAh Dual USB Portable Charger, Fast Charging Power Bank with USB C Input, Backup Charger for iPhone X, Galaxy S9, Pixel 3 and etc …
  • 【2-Pack 10000mAh Power Bank】Two 10000mAh battery packs not only for portable charging but also around the home. Allowing you charge mobile devices without having to be tethered to a plug socket. Each of them fully charges 2.4 times for iPhone X, 3.6 times for iPhone 8 and 2.2 times for Samsung Galaxy S9.
  • 【Dual Output & Input】Each has 2 USB output ports that detect all the connected devices and efficiently distributes the current output up to 5V 2.4A. The USB C and Micro USB ports can fully refill the battery itself in 5 hrs at 5V 2.0A.
  • 【Reliable Li-polymer Cell】Thanks to the Li-polymer battery pack, the charger is much safer than any Li-ion charger. Also, it's lighter and slimer that you can easily carry it around, even on airplanes.
  • 【Small & Slim】It feels incredibly compact for a 10000mAh power bank, weighing just 218g and only 14mm thick. Grippy design is easy to hold, easy to toss into a bag and incredibly portable.
  • 【What You Get】2 * Miady 10000mAh USB Portable Charger (White & Black); 2 * USB Cable; 1 * User Manual. We provide 24*7 friendly customer support and also back our products for 18 months.
SaleBestseller No. 2
Anker Portable Charger, 313 Power Bank (PowerCore Slim 10K) 10000mAh Battery Pack with High-Speed PowerIQ Charging Technology and USB-C (Input Only) for iPhone, Samsung Galaxy, and More
38,303 Reviews
Anker Portable Charger, 313 Power Bank (PowerCore Slim 10K) 10000mAh Battery Pack with High-Speed PowerIQ Charging Technology and USB-C (Input Only) for iPhone, Samsung Galaxy, and More
  • Quality Throughout:Built adventure-tier touch with superior durability and scratch resistance, PowerCore Slim 10000 is premium both inside and out.
  • Slim Size, Big Power:One of the slimmest and lightest 10,000mAh portable chargers on the market. Provides 2.25 charges for iPhone 12, 1.6 charges for Galaxy S20 and 1.2 charges for iPad mini 5.
  • Versatile Charging: Anker's exclusive PowerIQ and VoltageBoost technology combine to detect and deliver a tailored charge up to 12W, while the trickle-charging mode is the best way to charge low-power devices.
  • Superior Safety:Anker’s comprehensive MultiProtect safety system includes overcharge protection, short circuit protection, temperature control, and more.
  • What You Get: PowerCore Slim 10000 portable charger, Micro USB cable (USB-C cable and Lightning cable not included), travel pouch, welcome guide, lifetime* $25,000 connected equipment warranty, and friendly customer service. *For the purpose of this connected equipment warranty, "lifetime" is defined as the lifetime of the product.
SaleBestseller No. 3
iWALK Small Portable Charger 4500mAh Ultra-Compact Power Bank Cute Battery Pack Compatible with iPhone 13/13 Pro Max/12/12 Mini/12 Pro Max/11 Pro/XS Max/XR/X/8/7/6/Plus Airpods and More,White
7,936 Reviews
iWALK Small Portable Charger 4500mAh Ultra-Compact Power Bank Cute Battery Pack Compatible with iPhone 13/13 Pro Max/12/12 Mini/12 Pro Max/11 Pro/XS Max/XR/X/8/7/6/Plus Airpods and More,White
  • Fashion Design:Smooth face and better texture makes it elegant and unique.
  • Upgraded Capacity: 4500mAh is big enough to fully charge your iPhone 8 1.5 times or charge your iPhone X 1 time.
  • Upgraded built-in Lightning Cable:Supports thicker cases than last generation,no longer need to remove the case first to charge your iPhone.
  • Ultra-Compact: Size of a lipstick,not need a cord it’s easy to slip in your pocket or your purse and when you need it you have a charger right then and there.
  • You Will Get–1x Power bank,1x USB C Cable, 1x Manual.
Bestseller No. 4
GETIHU Portable Charger, 3A High Speed 10000mAh LED Display USB C Power Bank, Tri-outputs Battery Pack with Flashlight Compatible with iPhone 12 11 X 8 Samsung S20 Google LG iPad Tablet[2021 Upgraded]
18,175 Reviews
GETIHU Portable Charger, 3A High Speed 10000mAh LED Display USB C Power Bank, Tri-outputs Battery Pack with Flashlight Compatible with iPhone 12 11 X 8 Samsung S20 Google LG iPad Tablet[2021 Upgraded]
  • ✅【GETIHU’s Value】GETIHU is an R&D manufacturer with 11 years of experience. Providing gadgets with reassuring quality at an unbeatable price is our biggest advantage and always be our #1 priority.
  • ✅【Intelligent LED Display】Always to know how much battery is left with the clear digital display by simply pressing the power button. No more Guessing.
  • ✅【High-efficiency USB C】Equipped with the latest worldwide USB C charging standard, working as both input and output to not only let you fast refuel the charger, but perfectly fit your newest iPhone, Android, and all upcoming USB C devices.
  • ✅【High-speed Charging】Featuring exclusive smart IC to auto fit your devices’ charging rate and optimize the charging efficiency, you can power up two devices together at a blazing-fast speed up to 3A.
  • ✅【Even Wider Compatibility】Unlike most power banks on the market incapable of charging low-power accessories, GETIHU 10000 can work with not only all the smartphones but smaller devices like your AirPods, Bluetooth headphones, Bluetooth speaker, sport wristbands, smart watch, etc.
Bestseller No. 5
Portable Charger Power Bank 30,800mAh LCD Display Power Bank,25W PD Fast Charging +QC 4.0 Quick Phone Charging Power Bank Tri-Outputs Battery Pack Compatible with iPhone,Android etc
3,701 Reviews
Portable Charger Power Bank 30,800mAh LCD Display Power Bank,25W PD Fast Charging +QC 4.0 Quick Phone Charging Power Bank Tri-Outputs Battery Pack Compatible with iPhone,Android etc
  • 【Super-Fast Charging】portable charger Power bank high capacity The 30,800mAh power bank could charge your phone at least 6-8 times, Suitable for business, travel, going out, you don't have to worry about your phone low battery. [Note:High capacity so the products weight 350g]
  • 【Import Intelligent Controlling IC】 The portable charger adopt Import Intelligent Controlling IC to prevent power bank overcharge, overvoltage, overcurrent and short circuit. [CE certified] make sure product quality is safer.
  • 【3 Output -Charge 3 Devices At Once】Power bank with 3 Output Ports - QC4.0 output, PD output, 2.1A USB output, you can charge 3 devices simultaneously.Power Delivery 4.0 output and Quick Charge 4.0 output combine to deliver an optimized charge to your devices at up to 25W. Compared with non-fast charging power bank, save more than half of the time.
  • 【Universal Compatibility LCD display】 portable charger is universally compatible with all products via USB charging cable, including all iOS and Android smartphones, tablets, other devices and so on. LCD display shows current battery charge ,input and output status, no more guessing whether need to charge it or not.
  • 【Full 24 Month Warranty & Worry-Free Purchase】- You will get 30,800mAh power bank [Charge your phone 6-8times] , User manual, Micro USB cable [Not include Type C cable], AND 24 month warranty policy and 24 hours friendly customer service.


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. Weighs 12.56 ounces and can simultaneously charge two devices. 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.

Read our review: Anker PowerCore 20100 Portable Charger Review

Anker PowerCore 20100mAh Portable Charger - Ultra High Cell Capacity Power Bank with 4.8A Output and PowerIQ Technology, External Battery Pack for iPhone, iPad & Samsung Galaxy & More Blue
48,714 Reviews
Anker PowerCore 20100mAh Portable Charger - Ultra High Cell Capacity Power Bank with 4.8A Output and PowerIQ Technology, External Battery Pack for iPhone, iPad & Samsung Galaxy & More Blue
  • The Anker Advantage:Join the 50 million+ powered by our leading technology.
  • Ultra-High Cell Capacity:Weighs as little as a can of soup (12.5 oz) yet charges the iPhone 8 almost seven times, the Galaxy S8 five times or the iPad mini 4 twice.
  • High-Speed Charging:PowerIQ and VoltageBoost combine to deliver the fastest possible charge (does not support Qualcomm Quick Charge). Recharges itself in 10 hours with a 2 amp charger, phone chargers (generally 1 amp) may take up to 20 hours.
  • Certified Safe:Anker's MultiProtect safety system and high-quality LG battery cells ensure complete protection for you and your devices.
  • What You Get:Anker PowerCore 20100 Portable Charger, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service. USB-C cable and Lightning cable for iPhone/ iPad sold separately.


About How to Choose a Power Bank for Your Phone

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.

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.
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.

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.

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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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