Catalog > Internet of Things (IOT) Related Products > More Platforms TP4056 Micro USB Lithium Battery Charging Board TP4056 Micro USB Lithium Battery Charging Board BSK LITHIUM CHARGR BOARD 5V 1A ** Discontinued ** TP4056 MICRO USB LITHIUM BATTERY CHARGING BOARD WITH OVERCHARGE, OVERDISCHARGE AND OVERCURRENT PROTECTION Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview This mini Li-ion battery charger board set charging and battery overcharge overdischarge protection all in one practial for your DIY 18650 battery power supply to prolong its lifetime.On-board micro USB and soldering joints 5V input`port and charging status indicator ideal for single-cell lithium or multi-section parallel lithium battery. Specifications Input Voltage : DC5VCharging Cut-off Voltage : 4.2V±1%Maximum Charging Current : 1ABattery Over Discharge Protection Voltage : DC2.5VBattery Over Current Protection Current : 3ABoard Size : 26 x 17mm/1.02 x 0.67inch(LxW)