Specification: Origin: Mainland China Type: Module Condition: New Product Description: Module can realize the external power supply and battery dual-channel power supply seamless switching without delay), suitable for low-power DC equipment instruments and other uninterruptible power supply program, power outage since the start, the incoming charge. The module collection of lithium battery charging, lithium battery protection, boost output, UPS switching four practical functions at the same time equipped with universal MICRO USB charging interface. Direct DC5V input to the lithium battery charging, two-color LED indication of the charging status, full of green light is always on, automatically stop charging. Function description: 1. UPS function: when the power supply has power directly from the power supply through the boost circuit to the load power supply, at the same time to the lithium battery charging. Once the power supply is disconnected, it will automatically start the battery pathway to supply power to the load through the boost circuit. 2. Boost circuit: peak power up to 20W, rated power up to 15W, BOST boost circuit, built-in 12A high-current MOS, efficiency up to 96%. Module static power consumption 25MA, optional 5V/9V/12V output. (Load normal recommended