Modulo caricabatterie USB 3.7v 4.2v Boost Step Up 9V 6F22 litio Li-ion 18650
Battery type: 3.7V lithium battery;. Charging interface: USB Micro;. Board size: long 34mm wide 17mm thick 5.5mm;. Output current: less than 500mA stable (over the general assembly caused by the induction of heat and sound);.