Anker 20100mAh PowerCore High Speed Charging Power Bank

Last updated: October 12, 2022


This power bank lives up to its name. Not only does it hold enough juice to power multiple devices, but it can adjust the current to maximize charging on different cables. Battery life is on the high end for any charger of this size.

We looked at the top Power Banks and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Power Bank you should buy.

Product Details

Key Takeaway: This power bank can supply multiple gadgets with a full charge, simultaneously.

In our analysis of 21 expert reviews, the Anker PowerCore High Speed Charging Power Bank placed 9th when we looked at the top 13 products in the category. For the full ranking, see below.

From The Manufacturer

Model number: A1271 Anker PowerCore 20100 High-Speed-charging, long-lasting, portable power. From ANKER, America’s Leading USB Charging Brand • Faster and safer charging with our advanced technology • 50 million+ happy users and counting Ultra-High Capacity Enough power to keep you going for days. Charge an iPhone 8 almost seven times, a Galaxy S8 five times or an iPad mini twice. High-Speed Charging Technology Exclusive to Anker, PowerIQ and VoltageBoost combine to ensure your devices charge at their their fastest possible charge speed. Does not support Qualcomm Quick Charge. Enormous 4.8A Output Industry leading output of 4.8 amps provides enough power to simultaneously charge any combination of devices at full speed. MultiProtect Safety System Surge protection, short circuit protection and more advanced safety features keep you and your devices safe. Matte Finish Enhances grip and doesn’t leave smudges or fingerprints. World Famous Warranty At Anker, we believe in our products. That’s why we back them all with an 18-month warranty and provide friendly, easy-to-reach support. For Optimal Use: • Use the included cable, your original cable or a third-party certified one (such as MFi); AC adapter not included. • Please use your original Apple charging cable (not included) to charge Apple products. • Compatible with most USB-charged devices, including iPhone 8 / X / XS / XS Max / XR (Lightning cable required), Android smartphones and tablets (including the Nexus 7), USB-C MacBooks / iPad (USB A to C cable required). • Not compatible with the iPod nano, iPod Classic; Not for devices with an input below 50mA (e.g. some Bluetooth headsets and GPS devices). What’s In the Box PowerCore 20100 Portable Charger Micro USB cable Travel Pouch Welcome Guide

Expert Reviews


What reviewers liked

The Anker PowerCore 20100 is compact and impressive with its 20,100mAh. It can charge tablets several times, power a MacBook for an extra few hours, and still charge itself while fueling other devices. With its multiple ports and the power it has along with the price, it is extremely reasonable.
- Lumoid
The Anker PowerCore 20100 is one of the best power banks money can buy and it's affordable too. Pick this one up if you're looking for a portable charger to keep your phone and other gadgets pumped up. The edges of this are rounded so it's easy to carry.
Anker claims that the voltage boost feature senses the resistance of the cable and increase current accordingly. This feature is important when you are charging your device using long cables as such cables have high resistance that wastes current and leads to slower charging.
The rapid charging combined with incredible battery life makes this is a great addition to any serious traveler’s travel kit. It’s great for road trips. Anker remains a leading provider in power bank technology and the Anker PowerCore 20100 delivers. For its affordable price, it can’t be missed.

What reviewers didn't like

There might be other portable chargers that are smaller and lighter. Once it’s time to charge the charger, it can take around 10 hours. Not ideal since it is a long time but Anker claimed that lower amp charging cables can make the charger take longer.
- Lumoid
Charging up this charger itself is likely to take around 10 hours though, so you'll have to wait quite a while for the power bank itself to charge up. Anker also says some lower amp charging cables will take even longer to charge it.
It takes about 12 hours to recharge this power bank using a 2 Amp wall charger. It is recharged via micro-USB (free cable is included), and almost all new Android phones these days come with USB-C chargers.
The cable provided as part of the package was short. Would have liked 2 cables. The size was disappointing, as nearly 6″ occasionally makes it difficult to fit. The travel pouch is nice. For those seeking this capability, the Anker PowerCore 201000 does not support Qualcomm’s Quick Charge capability.
View our Power Bank buying guide for in-depth advice and recommendations.

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