TP4056 Lithium Battery Charger Module - 3.7V 4.2V Li-ion Battery Charging Board with Stable Charge/Discharge for DIY Electronics, Solar Projects & Portable Devices

Features: 1. This module can protect lithium battery from burnout during charging or discharging. 2. Provide many protection functions against overcharge, over-discharge, short circuit and overcurrent. 3. Suitable for 3.7V or 4.2V lithium battery. 4. The module is made with high quality electronic components, reliable and stable. 5. Reasonable layout, easy to wire and use. Specification: Over Charge Detection Voltage: 4.28±0.05V Over Charge Release Voltage: 4.26±0.05V Over Discharge Detection Voltage: 2.5±0.1V Over Current Detection Current: 1-3A Overcurrent Protection: 3.2±0.2A Size: 12.6*10.2*2.1mm / 0.5*0.4*0.08in Weight: 3g (approx.) Wiring: B- connected to battery negative B+ connected to battery positive P+ Connect the charger/load positive P- Connect the charger/load negative Application: 3.7V lithium battery 18650 TP4056 Charging module Package List: 1 * Lithium Battery Charger Module Note: Please charge the first time, activate the protection board. Otherwise there is no voltage output.