The Anker PowerCore 20100 Portable Charger is a great choice for a durable and reliable portable power bank with quick charge, a must-have gadget for anyone who travels with phones, laptops or other electronic devices. And, let’s face it… these days that is almost everyone who travels! We need to stay connected—whether to friends and family or to work or other obligations—while traveling the world and we are increasingly reliant on portable chargers to keep us on the go.

For portable charging needs, while traveling, the Anker PowerCore 20100 Portable Charger is an outstanding and favorably reviewed option. This lightweight, ultra-high capacity portable charger is equipped to charge all of your electronic devices at their fastest possible speed. This product provides long-lasting charge for many different devices and is an incredibly useful tool both for traveling abroad as well as for regular day-to-day use.

Anker PowerCore 20100 - Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad and Samsung Galaxy and More (Black)
14,672 Reviews
Anker PowerCore 20100 - Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad and Samsung Galaxy and More (Black)
  • [The Anker Advantage] Join the 30 million+ powered by our leading technology.
  • [Ultra-High 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.

Two things to add here: First, there is a newer model of this item, the Anker PowerCore+ 26800 PD with 30W Power Delivery Charger, however, since it is more than double the price, we can still recommend the older model, as it does the job well. The 26800mAh of power charges most phones over 7 times, tablets at least 2 times or notebooks at least once.

Second, I use, the Anker PowerCore 13000, Compact 13000mAh 2-Port Ultra-Portable Phone Charger Power Bank, which is very lightweight. Like most of these chargers, it takes way too long to charge ( pretty much all night) so you really have to think in advance if you want your battery pack fully charged. Luckily, I only need to charge it 1-2x per week. The 13000 weighs 8.5 oz (vs the 20100 weights 12.5 oz).

Anker Portable Phone Charger Best Sellers on Amazon

SaleBestseller No. 1
Anker PowerCore 10000 Portable Charger, One of The Smallest and Lightest 10000mAh External Battery, Ultra-Compact High-Speed-Charging-Technology Power Bank for iPhone, Samsung Galaxy and More (Black)
9,884 Reviews
Anker PowerCore 10000 Portable Charger, One of The Smallest and Lightest 10000mAh External Battery, Ultra-Compact High-Speed-Charging-Technology Power Bank for iPhone, Samsung Galaxy and More (Black)
  • The Anker Advantage: Join the 10 million+ powered by our leading technology.
  • Remarkably Compact: The smallest and lightest 10000mAh portable charger. Provides almost three-and-a-half iPhone 6s charges or three Galaxy S6 charges.
  • High-speed-Charging Technology: 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. Lightning cable for iPhone / iPad sold separately
Bestseller No. 2
Anker PowerCore 20100 - Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad and Samsung Galaxy and More (Black)
14,672 Reviews
Anker PowerCore 20100 - Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad and Samsung Galaxy and More (Black)
  • [The Anker Advantage] Join the 30 million+ powered by our leading technology.
  • [Ultra-High 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.
Bestseller No. 3
Anker PowerCore 13000, Compact 13000mAh 2-Port Ultra-Portable Phone Charger Power Bank with PowerIQ and VoltageBoost Technology for iPhone, iPad, Samsung Galaxy (Black)
6,338 Reviews
Anker PowerCore 13000, Compact 13000mAh 2-Port Ultra-Portable Phone Charger Power Bank with PowerIQ and VoltageBoost Technology for iPhone, iPad, Samsung Galaxy (Black)
  • The Anker Advantage: Join the 30 million+ powered by our leading technology.
  • Upgraded Capacity: The successor to PowerCore 10400-identical compact size but packed with even more power. Charges an iPhone 8 almost 5 times, an iPhone X or Samsung Galaxy S9 3 times, or an iPad Air 2 once.
  • Light and Compact: A super-high 13000 mAh capacity with two high speed USB ports is all contained in a portable charger smaller than a wallet.
  • High-Speed Charging: PowerIQ and VoltageBoost combine to deliver a max speed charge to any device (up to 3A - Qualcomm Quick Charge not supported). Input: 5V / 2A.
  • What You Get: Anker PowerCore 13000 Portable Charger, Micro USB cable, travel pouch, welcome guide, our worry-free 18-month warranty and friendly customer service.
Bestseller No. 4
Anker PowerCore 26800 Portable Charger, 26800mAh External Battery with Dual Input Port and Double-Speed Recharging, 3 USB Ports for iPhone, iPad, Samsung Galaxy, Android and Other Smart Devices
2,632 Reviews
Anker PowerCore 26800 Portable Charger, 26800mAh External Battery with Dual Input Port and Double-Speed Recharging, 3 USB Ports for iPhone, iPad, Samsung Galaxy, Android and Other Smart Devices
  • The Anker Advantage: Join the 30 million+ powered by our leading technology.
  • Colossal Capacity: 26800mAh of power charges most phones over 6 times, tablets at least 2 times and any other USB device multiple times.
  • High-Speed Charging: 3 USB output ports equipped with Anker's PowerIQ and VoltageBoost technology ensure high-speed charging for three devices-simultaneously (Not compatible with Qualcomm Quick Charge).
  • Recharge 2X Faster: Dual Micro USB (20W) input offers recharge speeds up to twice as fast as standard portable chargers-a full recharge takes just over 6 hours while using both input ports (wall charger not included).
  • What You Get: PowerCore 26800, 2X Micro USB Cable, Travel Pouch, Welcome Guide, our worry-free 18-month warranty and friendly customer service. USB-C cable and Lightning cable for iPhone / iPad sold separately.
Bestseller No. 5
Anker [Upgraded to 6700mAh] Astro E1 Candy-Bar Sized Ultra Compact Portable Charger, External Battery Power Bank, with High-Speed Charging PowerIQ Technology
1,602 Reviews
Anker [Upgraded to 6700mAh] Astro E1 Candy-Bar Sized Ultra Compact Portable Charger, External Battery Power Bank, with High-Speed Charging PowerIQ Technology
  • The Anker Advantage: Join the 30 million+ powered by our leading technology.
  • Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 2 amps. Does not support Qualcomm Quick Charge.
  • Upgraded Capacity: Add over two full charges to an iPhone 8 or 1.5 full charges to an X, Galaxy S8, Nexus 5 or other smartphone (use your device's original cable).
  • Incredibly Compact: The size of a small candy bar (3.8 × 1.7 × 0.9in, 4.4oz) it fits perfectly in your pocket. Recharges in 5.5 hours with a 1A adapter (not included) and the included Micro USB cable.
  • What You Get: Anker Astro E1 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.

Anker products come equipped with Power IQ Technology. This means the portable charger intelligently identifies the connected device and then PowerIQ delivers the optimum, high-speed charge to all devices. This includes both Apple and Android phones and tablets as well as cameras, consoles, and many other electronic products.

The Anker 20100 is extremely lightweight when you consider its impressive size-to-capacity ratio. A product that weighs approximately the same amount as a can of soup (12.5 oz) can charge the iPhone 6s up to seven times, the Galaxy S6 up to five times or the iPad mini 4 twice.

Additionally, the Anker 20100 boasts surge protection, short circuit protection, and more advanced safety features to protect all of your electronic devices. It comes in a black or white matte finish that doesn’t show smudges or fingerprints and includes Smart technology that determines when charging output is encountering cable resistance. By compensating for this resistance, VoltageBoost ensures the charging speeds are unaffected by the use of long or old cables.

Anker PowerCore 20100 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. It should be noted that the lightning cable for use with an iPhone or iPad must be purchased separately. Additionally, Anker offers outstanding customer service for assistance with all of their products, which are enjoyed by 10 million+ users.

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Product Specifications for the Anker PowerCore 20100 Portable Charger

  • Charging Technology: Power IQ
  • iPhone 6s charges: 7.3
  • iPad Mini 4 charges: 2.5
  • Samsung 6s charges: 5.2
  • USB charging ports: 2
  • Output: 5V 4.8A (2.4A max per port)
  • Max input: 2A
  • Size: 6.5 x 2.3 x 0.9in
  • Weight: 356g/12.56oz
  • Batteries: 1 Lithium Polymer batteries required

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Pros – Anker PowerCore 20100 Portable Charger

Anker products have been reviewed favorably by many users, including frequent travelers and digital nomads, and we’ll highlight some of the “user pros” here.

  • The Anker 20100 comes with a USB cable and you plug it into any USB port to charge.
  • The Anker 20100 works with both Android and iPhone devices.
  • A lighted display area on the device informs the user of the approximate amount of battery left (there are four lights, so the display is in approximate increments of 25%).
  • Users note the Anker 20100 typically charges devices faster than a car charger.
  • The ability to charge two devices at once (and indeed numerous times over) is a huge convenience for Anker 20100 users.
  • The impressive speed is cited by users; for example, one user noted his iPhone 7 could be fully charged in only 30–35 minutes (or 45 minutes if in use).
  • Another user noted the Anker provides plenty of charging power for both the iPad and iPhone 7 Plus, even when used at maximum brightness.
  • The carry case and build quality are consistently cited as outstanding features by users.
  • The product is a favorite for hikers, bikers, and travelers who need long-lasting charging capabilities in a lightweight and durable format.

Cons – Anker PowerCore 20100 Portable Charger

There are a few “cons” that are frequently reported with the Anker 20100, which are as follows:

  • The charge time for the device is a common complaint among users. Some report that the device may take a full day or longer to charge (though most users try to charge their devices during sleeping hours in order to minimize this inconvenience).
  • Some Anker 20100 users report that the weight of the product can be a bit heavy for “pocket carry” or daily use, suggesting it is better suited for long trips only. (Again, this should be taken in context with the Anker 20100’s impressive size-to-capacity ratio. Many users understand that the device is still relatively lightweight when you consider just how powerful and long-lasting its charging capabilities are.)
  • Some users report their Anker 20100 portable chargers stopped working (or worked at slower charging speeds) anywhere from a few months to one year after the initial purchase.
  • While the Anker 20100 works with most USB-charged devices, it does not work for the iPod nano, iPod Classic, HP TouchPad, Dell Venue 11 Pro, Asus tablets and some GPS and Bluetooth devices.

Anker customer service works hard to ensure customer satisfaction and can be counted on to replace defective products and address other consumer concerns. When and where users have reported defective or malfunctioning products, Anker will promptly replace the products. Even users who have experienced a defective or malfunctioning product have often remained loyal to Anker because of their outstanding customer service and willingness to address any problems quickly and ensure the customer is satisfied.

Because there is always a risk for a defective product—from any manufacturer—it is a good idea to purchase and test a portable charger well in advance of a trip, to sort out any issues or problems beforehand. An Anker 20100 portable charger should certainly be considered when planning travel and it may be your best bet for portable charging needs as you hike, bike, explore, and sightsee in destinations far and wide.

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Anker PowerCore 20100 Portable Charger Video

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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

SaleBestseller No. 1
Anker PowerCore 10000 Portable Charger, One of The Smallest and Lightest 10000mAh External Battery, Ultra-Compact High-Speed-Charging-Technology Power Bank for iPhone, Samsung Galaxy and More (Black)
9,884 Reviews
Anker PowerCore 10000 Portable Charger, One of The Smallest and Lightest 10000mAh External Battery, Ultra-Compact High-Speed-Charging-Technology Power Bank for iPhone, Samsung Galaxy and More (Black)
  • The Anker Advantage: Join the 10 million+ powered by our leading technology.
  • Remarkably Compact: The smallest and lightest 10000mAh portable charger. Provides almost three-and-a-half iPhone 6s charges or three Galaxy S6 charges.
  • High-speed-Charging Technology: 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. Lightning cable for iPhone / iPad sold separately
Bestseller No. 2
Anker PowerCore 13000, Compact 13000mAh 2-Port Ultra-Portable Phone Charger Power Bank with PowerIQ and VoltageBoost Technology for iPhone, iPad, Samsung Galaxy (Black)
6,338 Reviews
Anker PowerCore 13000, Compact 13000mAh 2-Port Ultra-Portable Phone Charger Power Bank with PowerIQ and VoltageBoost Technology for iPhone, iPad, Samsung Galaxy (Black)
  • The Anker Advantage: Join the 30 million+ powered by our leading technology.
  • Upgraded Capacity: The successor to PowerCore 10400-identical compact size but packed with even more power. Charges an iPhone 8 almost 5 times, an iPhone X or Samsung Galaxy S9 3 times, or an iPad Air 2 once.
  • Light and Compact: A super-high 13000 mAh capacity with two high speed USB ports is all contained in a portable charger smaller than a wallet.
  • High-Speed Charging: PowerIQ and VoltageBoost combine to deliver a max speed charge to any device (up to 3A - Qualcomm Quick Charge not supported). Input: 5V / 2A.
  • What You Get: Anker PowerCore 13000 Portable Charger, Micro USB cable, travel pouch, welcome guide, our worry-free 18-month warranty and friendly customer service.
Bestseller No. 3
Anker PowerCore 20100 - Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad and Samsung Galaxy and More (Black)
14,672 Reviews
Anker PowerCore 20100 - Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad and Samsung Galaxy and More (Black)
  • [The Anker Advantage] Join the 30 million+ powered by our leading technology.
  • [Ultra-High 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.
Bestseller 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
4,594 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
  • Upgraded Charging Technology - Auto detect your device and deliver its fully-intended charge speed up to 2.1A at most once connected.
  • Sufficient Power Supply - Add two charges to an iPhone 6, or at least one full charge to an iPhone 6 Plus, Galaxy Note 5/4/3, Galaxy S6/S7 and almost other phones.
  • Ultra Compact - Remarkably small only 3.9*1.3*1.2 inch w/o packaing, hexagonal tubular design, makes it fits into any pocket or wallet easily, just portable on the go whenever you need it.
  • Constructed using Grade A cell, and premium microchips, to ensure the highest quality and safety, and worry-free operation.
  • What You Get: Poweradd Slim 2, Micro USB cable, User Manual, our fan-favorite 24-month limited product warranty and friendly customer service. Lightning cable for iPhone / iPad sold separately.
SaleBestseller No. 5
Anker PowerCore 5000, Ultra-Compact 5000mAh External Battery with High-Speed Charging Technology, Power Bank for iPhone, iPad, Samsung Galaxy and More
2,826 Reviews
Anker PowerCore 5000, Ultra-Compact 5000mAh External Battery with High-Speed Charging Technology, Power Bank for iPhone, iPad, Samsung Galaxy and More
  • The Anker Advantage: Join the 30 million+ powered by America's leading USB charging brand.
  • High Capacity: Contains 5000 mAh of power. Enough to provide over an entire replacement charge for iPhone X and Samsung Galaxy S9, or almost 2 charges for iPhone 8.
  • Ultra-Compact: Remarkably small, tubular design slides easily next to your phone in any pocket or bag. Just 10cm tall and 3cm wide.
  • High-Speed Charging: Equipped with exclusive PowerIQ technology, it provides the fastest possible charge to any phone or tablet (up to 2A). Does not support Qualcomm Quick Charge.
  • What You Get: PowerCore 5000, travel pouch, Micro-USB cable, welcome guide, our worry-free 18-month warranty and friendly customer service. Lightning cable for iPhone and iPad sold separately.



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