... of battery,charging,mistake,the connection of AC and DC output. 5.With intelligent control, the system is equipped prorections ... , overload,overcharging, overdischargingSpecification: Part NameItemTechnical DataSolar Power ParametersMax Output18V 20W Max Current1.1A Voltage22.5V ± 10%ControllerController Power12V 8A Battery ... TV, computer, etc. 2012 New Design Portable Solar Battery Charger 20W