ZkeeShop 10Pcs 5V 1A Micro USB Charging Module 18650 Lithium Battery Charger Board with Protection Function

Inputs with Micro-USB , can be directly input to do with the phone charger rechargeable lithium battery,can be very convenient DIY. The first time you access the battery, it may no voltage between the output OUT + and OUT-, then access 5V voltage charge your energy can activate the protection circuit, and the battery from the B + B-, then draw a line on the short open also need recharged to activate the protection circuit. Note that the charger must be able to output 1A or more to do when using a mobile phone charger input, or may not charge Connect the battery to the B + B-, inserted into the USB female mobile phone charger, the red light is being charged, the green light to full.