Industry-Electronics 4duino 5V 1A Lit-Battery Micro USB Charger mit protection Module
100% Brand New & High Quality

Mini USB input terminal with a female, can be directly input to do with the phone charger rechargeable lithium battery,

And still retains the input voltage wiring pads, can be very convenient DIY

Input voltage: 5V

Charging cut-off voltage: 4.2V ± 1%

Maximum charge current: 1000mA

Battery over-discharge protection voltage: 2.5V

Battery overcurrent protection current: 3A

Board size: 2.6 * 1.7CM

It can be used for voltage 3.6 3.7V, etc. 18650, polymer and other lithium battery charge and discharge protection, single or multiple parallel