McIgIcM 5pcs Micro USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board with Protection Dual Functions 1A Li-ion;

1. 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.
2. It can be used for voltage 3.6 3.7V, etc. 18650, polymer and other lithium battery charge and discharge protection.
3. Input voltage: 5V
4. Charging cut-off voltage: 4.2V
5. Maximum charge current: 1000mA
6. Battery over-discharge protection voltage: 2.5V
7. Battery overcurrent protection current: 3A
8. Board size : 17.16 mm x 26.17 mm