Automatic Charge control function:By setting the volt-HI:'UP' volt-:'';When the battery voltage is the volt-:'',the relay leads,the charger begins to charge the battery;when the battery voltage is up to volt-HI:'UP',the relay is diconnected and the automatic charge is completed once; Charge Time Control Function:After entering the parameter set, set the parameter op is non-, then turn on the time control function, op default parameter is:--:--h, the default does not turn control function; After the opening Time control function (OP is non-), when the battery voltage is the lower volt-'', the charger began to charge the battery, the system began to clock; During the timing, the battery voltage greater or to volt-HI'UP', relay disconnect; If the OP time is up, the battery voltage is still the lower volt-'', the relay keeps the conduction, automatically closes the charge time control function, and flashes the H:ER to remind the , the time parameter setting is unreasonable; Press any key to stop flashing; Note: Time : 00:59 (00 for hours, 59 for minutes) The maximum time is 99:59, which is 100 hours. Application:Charger Controller Maximum Current:30A Model Number:XY-L30A Support Lead-acid battery and Acting Battery,voltage range:6V~60V; Can display voltage,percent of battery,charging time at the same time through LCD; The function is very ,realizes the automatic charge control, the control charge time, also may set up and uploads the corresponding parameter through the serial port; Size: 92*45mm color: blue Material: metal + PC Package contents: 1* Storage battery Charging Control Module Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.