When comparing Anker PowerCore 20100 vs Anker 2nd Gen Astro 6400mAh Portable Charger, the Slant community recommends Anker 2nd Gen Astro 6400mAh Portable Charger for most people. In the question“What are the best portable battery chargers for Android phones?” Anker 2nd Gen Astro 6400mAh Portable Charger is ranked 1st while Anker PowerCore 20100 is ranked 4th.
Ranked in these QuestionsQuestion Ranking
Pro Great price for the capacity
Pro Huge capacity
Its capacity is 20,000 mAh which can charge an iPhone 6 seven times, and a Galaxy S6 five times.
Pro High power output
It has 2 USB ports that output at 2.4 amps each allowing it to charge 2 devices at the maximum rate for most phones.
Pro Solid build quality
Pro Safe power output
Anker is a well established quality brand, and contains surge protection, and other safety features to make sure that the power output matches whatever your device can take.
Pro Battery lasts longer than most portable chargers
Pro Informative incremental LED
There is no screen on the device in order to save room, but there is a circular led that has 10% incremental segments that will let the user know within 10% how much the device is charged or needs to be charged.
Pro Environmental packaging
All Anker products come in compact recyclable cardboard boxes, which not only makes them easy to open but also environmental friendly.
Con Very heavy
Due to the size of the battery this device is pretty heavy and less portable than others. While not unexpected it is something to consider for a portable charger.
Con Multiple reports of the device failing
Multiple people have reported that the devices stopped working within the first month of use.