Micro USB lithium ion/lipo/ 18650 battery charging board, built-in TP4056 chip, set charging and battery over-charge over-discharge over-current protection all in one practical for your DIY 18650 battery power supply to prolong its lifetime.
On-board micro USB and soldering joints 5V input port and charging status indicator (red indicator is charging, green or blue indicator is full charged)
1. Micro USB input terminal with a female can be directly inputted to do with the phone charger rechargeable lithium battery, And still retains the input voltage wiring pads, can be very convenient DIY.
2. It can be used for voltage 3.6 3.7V, etc. 18650, polymer and other lithium battery charge and discharge protection.