The charge should disconnect the load OUT terminal on the positive and negative can not be wrong, please according to specifications, otherwise it will damage directly.

Module Features and parameters

• Inputs with MICRO USB 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 

• More details, please visit: https://github.com/SmartArduino/SZDOITWiKi/wiki

                                                                                                                                                

Instructions

Note: 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

+ MICRO USB female and next - pads for the power input, access 5V. B + positive then the lithium battery, B- then negative lithium batteries. OUT + and OUT- connected to the load, such as positive and negative electrodes connected mobile booster plate or other load.

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.

​