Balmar ARS Multi-Stage Regulator w/Harness - 12V. Without proper voltage regulation battery charging can be a slow process or even worse an ideal recipe for early battery failure. Specifications for Balmar ARS Multi-Stage Regulator w/Harness: Manufacturer: Balmar Color: Black Voltage: 12 volts Package Contents: Balmar ARS Multi-Stage Regulator w/Harness Balmar ARS-5-H: ARS Multi-Stage Regulator w/Harness - 12V