... ,the attempt 4.MPPT XX44 Model 20~50A-MPPT Intelligent Solar Controller Advantages of MPPT technology: 1. Max ... float charge (password protection).Status Display240×128 pixel Display:1.System Parameters: input and output voltage, current, power, electric ... electric quantity; battery capacity, electric quantity, remaining time.2.Alarm Parameters: battery voltage, output current, equipment temp., input ...