9V/18V MPPT Solar Charger Controller Board for Lithium Battery - 3.7V/7.4V/18V Charging Module with Overcharge Protection - Perfect for Solar Panels, DIY Power Banks, and Portable Charging Stations

Product Description

Feature: 1. 1A 3.2-18.5V multi-function battery charger with photovoltaic cell MPPT function. 2. Complete charging controller for single or multiple Li-ion, LiFePO4 or lithium titanate batteries. 3. The maximum load current / output current is 1A, but you can change the current by changing the value of the Rcs resistor. 4. Can be used as voltage source when battery is absent. 5. Automatic conditioning of deeply discharged batteries. 6. Automatic recharge, battery overvoltage . Specification: Item Type: Solar Panel MPPT Controller Charging Module Option: 9V, 18V 9V (for 9V Solar Panel): Input DC 9-28V, Output DC 1.2-8V Adjustable (3.6V 4.2V 4.3V 4.35V 7.2V) 18V (for 18V Solar Panel): Input DC 18-28V, Output DC 1.2-17V Adjustable (3.6V 4.2V 4.3V 4.35V 8.4V 12.6V 16.8V) MPPT Disable (Change R5 to 12KΩ, it is recommended to buy DD28CRTA): Input DC 7-28V, Output DC 1.2-21V Adjustable(3.6V 4.2V 4.3V 4.35V 8.4V 12.6V 16.8V 21V) LED indicator: ''CR'' LED is status indicator Operating Ambient Temperature: -40℃ to ＋85℃ Package List: 1 x Solar Panel MPPT Controller Charging Module