Features:
• 10pcs 5V 1A 18650 Lithium Battery Charging Board
• Input Voltage: 5V
• Charging cut-off voltage: 4.2V ± 1%
• Maximum charge current: 1000mA

Specification:
5V 1A 18650 Lithium Battery Charging Board USB Type C Charge Module With Protect
1A Rechargeable Lithium Battery Charging Module and Protection Module Two in One

Features and Parameters:
USB inputs with female, can be directly input to do with cell phone charger rechargeable lithium battery.
And still retain the input voltage wiring joints, can be very handy 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

Note:
1. When the first time you access the battery, there may be no voltage output between OUT- and OUT +, at this time, get access to the 5V voltage, it will be activated.
2. When the battery was get out from B + and B- , it still need to be charged then can be activated .
3. If you want to use Phone charger to charge, the current input should be up to 1A and more, otherwise it can not be in normal charged.
Connect the battery to the B + and B-, insert the phone charger into the USB female, red light means being charged, the green light means full charged.