Check the listing for details. Lead-acid Lithium Solar Battery Charger Charge Controller UART 6V 12V 24V 36V. Condition: New. Listed at 14.99 USD. SLA Lead-acid Lithium Solar Battery Charge Controller with RS232 Timer 12V 24V 36V 48V Description:This is a well designed battery charge controller module that can be used to charge many type of battery (SLA ,Lithium etc) based on Time or Voltage thresholds. Manual control or computer based control. Full support of Serial/COM/UART/RS232 command based control, so that you can do your own scripts to run on a PC/Laptop/Raspberry Pi for custom charging profiles.A 30A Relay is employed to turn on and off the supply to the target being charged. Specifications :Supports any Lead-acid or Li-Ion battery with voltage range:6V~60V;PCB Size Installed : Approx : 3.6 x 1.7 inchSwitches for config and settings for Manual Only control.LCD Display of Voltage, % of Battery, Charging timePC /Laptop /Pi Control : By UART/COM/SERIAL/RS232 Port or USB(Serial Adapter Needed)Max Current : 30A Computer UART /Serial /COM Control :Commands : {Relay Enable, Disable, Read Data, Read Parameter, Set Volt UP/ Down, Set Charge time , Zero Charge Time }Data Read Format:Battery voltage + battery percent + charge time + charge status ex: 12.0V,020%,00:10,OP Package Contents1x Battery Charge Controller Module 30A for batteries 6-60V Terms :Brand New.Fast Shipping from LAWill arrive in 2-3 days to most locations Product Support & Questions: By Email - PDF English User Manual available and technical support.