Features Charging Module When powered by solar panels, the internal circuit can automatically track the maximum power point of the solar panel. It also low voltage locking, battery end overvoltage protection and charging status indication function,very popular. This product has small package shape, less peripheral components and It can save time and help you control your devices, convenient to operate. With trickle, constant current, over charging and floating charging mode. Charging Module 100% brand new and high quality,high strength, high cost performance. Specification: Condition: 100% Brand New Over-charging Voltage: 14.8v Floating Charge Voltage: 13.55V Charging Current: 3A Working Environment Temperature: -40℃-85℃ Weight: Approx. 12g / 0.4oz Size: Approx. 31 * 49mm / 1.2 * 1.9oz   Package List: 1 * Solar Panel Controller Charging Module Package List