TL-PB20100 is an enormous capacity 20100mAh power bank from Ally series. The extra capacity working together with high energy efficiency, delivers more power and charges more times for all your devices. A TL-PB20100 carries enough power for most circumstance, even a long trip or a family gathering powered by TP-Link Smart Charging technology, both output ports of TL-PB20100 can intelligently adjust the charging power subject to the connected devices. These flexible output ports are designed to be capable of delivering ultra fast charging power for devices with large battery like tablets, and also capable of delivering safe and minimal charging power for gadgets with tiny battery like smart wearable devices. The less charging time, the more you can make out of your devices. Thanks to TP-Link Smart Charging technology and 5V/2.4A ultra fast charging speed, TL-PB20100 can charge 65% faster and save up to 40% charging time. Fully charging iPhone 6s Plus takes 150mins with TP-Link Smart Charging, while 250mins with an original Apple charger. Also supporting 5V/2.4A recharging speed, TL-PB20100 can quickly recover from empty to full capacity by saving 50% charging time. Within same time period, other 15000mAh power bank supporting 5V/1A recharging speed only, they will need extra time to recover from empty to full capacity. Built-in flashlight comes in handy for in-house and off-road activities. Ally series power banks incorporate the latest safety features to protect your devices and power bank against short circuit, over voltage, over current, over charging, over discharging and over heating. Compatible with smart devices running iOS, Android, Windows and most other USB-charged devices, from devices with large battery like tablets, to gadgets with tiny battery like smart wearable devices.