SDTC Tech 2pcs 5V 1A Battery Charging Protection Board 18650 TP4056 Lithium Battery Micro USB Charger Module with Overcharge Discharge Over-Current Protection

"Name: 5V 1A Lithium Battery Charging and Protection Module Size: 26x17mm / 1.02x0.67 inch (LxW) Protection Function: Overcharge, Discharge, Over-Current Protection Connection Model: Input: Micro socket or IN+ / IN- soldering Output: B+ connect to lithium battery positive, B- connect to lithium battery negative, OUT+ connect to Load positive, OUT- connect to Load negative. Attention: 1.There might be no voltage output between OUT+ and OUT- for the first connection, at this time, connect 5V voltage to charge, it will activate protection circuit. While the battery re-connect after off B+, B-, it also need charge to activate protection circuit. 2.Positive and negative reverse connection of the output port will burn out the module chip. 3.When use the phone charger as input, the power source must can output 1A or above. 4.The ampere meter for testing can only cascading to the 5V output port. Package: 2pcs 5V 1A 18650 TP4056 Lithium Battery Charging and Protection Modules"