... movable power supply series, a fashion, convenient and big capacity battery. It can charge different laptop computer, mobile phone and digital ... 9V ,12V ,16V, 19V, select the voltage which complies to battery of device or charger's requirement.3. Output: Connect flexible ... 1. High capacity, 21600mah, 4-30 times bigger than digital battery.2. With remind function after fully charge. 3. With automatically ...