Features: The Battery Charging Control Module Board for efficient and safe charging of 12V Leads acid and lithiums car batteries, featuring automatic control and switch Protections to prevent overcharging. Equipped with real time Voltages monitor and Cores chip, this module offers Precisions control with Voltages tolerance of +/ 0.1V, ensuring performances across various battery types including cadmiums and polymers batteries. for individuals such as business professional, students, and travel who frequently use electronic devices and require dependable battery maintenance. for like homes, offices, or during travel, this charge controller ensures devices like smartphones and tablets efficiently powereds, making it addition to any electronic. With its user friendly interfaceS featuring 3 digital LED display and momentary push button, users can easily set the start and stop charging voltages, enhancing the convenience and adaptability of essential access. Specifications: Materials: Electronic components Size:3.5x3.50cm/1.38x1.38inch Input voltages: 15-24Vdc Overcharge voltages: 14.80VDC Fucheng voltages: 13.55VDC Charging current: 4AmaX (set through on board) 016058 trickles flow Constant current Overcharging and float charging mode for charging 12V leads-acid batteries. In overcharge and float charging mode The typical values for charging and voltages 14.8V and 13.55V respectively: in constant current charging,The charging current is set through the external Shenyang Package Includes: 1PC Battery Charging Module note: Please allow 1-3mm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!