The Anker 533 PowerCore Quick Charger Powerbank with 10,000 mAh in black has a large battery capacity, allowing you to recharge your phone multiple times. Charging your tablet is also no problem. Powerbanks are very convenient for a long day when you have little time to recharge. This Anker powerbank can charge two additional devices alongside your phone. The indicators on the front of the powerbank show how long you can still charge and what percentage of the battery the powerbank has left. This way, there are no surprises. The Anker powerbank has a high charging speed. It charges quickly while still being gentle on the battery.