Features Advanced Precharge Regulation - Effectively recovers deeply discharged batteries, minimizing heat and ensuring a safe initial charging process Efficient Temperature Control - Features constant current and thermal regulation for optimal charge efficiency without overheating risks Automatic Sleep Mode - Engages low-power sleep mode when power input is removed, extending the lifespan of your charger Smart Maintenance Charging - Incorporates timer termination for maintenance charging, ensuring batteries remain in peak condition Clear LED Charging Indicator - Equipped with an LED light to easily display charging status, providing convenience and peace of mind Features: 1、Precharge regulation for recovering deeply discharged batteries and minimizing heat dissipation during initial charging. 2、Constant current / constant temperature with thermal regulation to maximize charge efficiency without risk of overheating. 3、Automatic low-power sleep mode when power input is removed. 4、Maintenance charging mode (timer termination). 5、With LED indicator to show charging status. Specification: 1-Cell(1S) 1.5V Version: Input Voltage : DC 3.5V-6V(Recommend DC 3.7V/3.8V/4.5V/5V) Charging Voltage : 1.5V Charging Current : 1A 2-Cell(2S) 3V Version: Input Voltage : DC 3.7-6V(Recommend DC 3.7V/3.8V/4.5V/5V) Charging Voltage : 3V Charging Current : 1A 3-Cell(3S) 4.5V Version: Input Voltage : DC 5-6V(Recommend DC 5V) Charging Voltage : 4.5V Charging Current : 1A Operating Temperature : -40~85℃ Storage Temperature : -65~125℃ Size: 30x15x2.7mm / 1.18x0.59x0.11in Application: Kids Toys Car Digital Camera Solar Charging Bluetooth Application o Equipment Electronic Dictionary Portable Device NiMH Battery Charger Package List: 1 x Charger Module Package List 1 x Charger Module