With a capacity of 10400 mah the tp link tl pb10400 power bank can charge two devices simultaneously such as smartphones and tablets to keep them running when youre out living life without worrying whether youll have enough power to talk snap and play its powerful capacity of 10400mah lets you charge a smartphone 3 5 times keeping your devices running all the time the tl pb10400s multiple protections of short circuit over voltage over current over charge over discharge and over