Features 1、Reliable Uses: Enables automatic power off, the module will save power and worry as well as extending battery life. 2、For Batteries: Can be flexibly applied for the charging of 3.7‑120V lithium batteries, very efficient and reliable. 3、Simple Wiring: High power terminal has large wiring capacity, which can easily adapt to various wiring requirements. 4、Great Control: Adopting single chip microcomputer for controlling, ensuring effective, easy and accurate processing. 5、Indicate Light: When the voltage is lower than the starting voltage, the indicator light is on, the battery is being charged, and when the voltage is higher than the stop voltage, the indicator light is off, and the battery charging stops. Specification Item Type: Charging Control Module Model: XH-M602 Input Voltage: AC220V Display Accuracy: 0.1V Control Accuracy N: 0.1V Output Type: Output Switch Voltage Error: +/-0.1V Adaptation Range: For 3.7-120V lithium battery and storage battery. Product Size: Approx. 86 x 58 x 24mm / 3.39 x 2.28 x 0.94in Package List 1 x Charging Control Module