Plasmatronics 12Volt 10Amp Regulator for Liquid Electrolyte Lead Acid Batteries

A simple two stage regulator for charging liquid electrolyte lead acid batteries from photovoltaic panels. It uses a rugged power mosfet and switches on the negative side.

Plasmatronics regulator works like an intelligent switch between the BAT- terminal and the SOL- terminal. Charge current flows into the battery until the battery voltage rises to the boost maximum (14.6 V). The regulator now switches to float mode. The current is switched off and the battery voltage slowly falls. When the battery voltage drops below the float cut in voltage (13.4 V), the current is switched on again. The charge current continues to flow into the battery until the voltage rises to the float maximum (14.0 V). The charge current is then turned off. The regulator switches the current on and off to keep the battery voltage between the float maximum voltage and the float cut in voltage. When the battery has been discharged enough for it to fall below the boost cut in voltage (12.5 V), the unit will switch back into boost mode.

Warranty

• 1 Year Manufactures Warranty

Technical Specifications

Installation

Mount the regulator by the holes in the terminal block. In hot or enclosed spaces, allow 1 cm space behind the regulator. Connect a wire from the positive battery terminal to the Battery positive (BAT+) terminal. Connect another wire from the negative battery terminal to the Battery negative (BAT-) terminal. Connect a third wire between the negative side of the solar panel and the Solar negative (SOL-) terminal. Connect the solar panel positive to the positive battery terminal (directly to the battery, not to the BAT+ terminal on the regulator). We recommend the installation of a reverse blocking diode in the solar positive wire.
IMPORTANT: The wire from the SOL- terminal must not be connected to the chassis of motor vehicles or motor homes. If you connect the SOL wire to chassis, you will bypass the regulator and you may overcharge your battery.