The battery equalizer balances battery voltage when a 20mV difference is detected between two batteries. Features reverse polarity protection and low voltage disconnect to extend battery life. Can be connected in series or parallel for continuous use, automatically maintaining battery balance. Suitable for use in autos, boats, golf carts, motorcycles, solar systems, trucks, RVs, electric forklifts, and other battery bank configurations. Battery nominal voltage: 24V. Balancing current: 0-5A. Quiescent current: less than 3mA. Low voltage disconnect: 10V. Installation: Connect the battery equalizer as follows: Red cable to Battery B positive terminal, black cable to Battery A negative terminal, white cable to Battery B negative terminal or Battery A positive terminal (the common connection point between Battery A and Battery B in series). Dimensions: 70x70x27 mm. Color: Black. Material: ABS. Package includes: 1 x Solar Battery Equalizer. Only the listed item is included; other items are not part of the package. Note: Lighting and display differences may cause slight variations in color appearance. Measurement error allowance: +/- 1-3 cm.