OptiMate Battery Monitor Cables

These special quick-disconnect harnesses are similar to those included with Optimate battery chargers, but with a built-in battery status monitor. A 2-pin SAE plug on one end matches the plug on Optimate chargers and charging harnesses.

The 4-LED battery status monitor indicates resting battery voltage when parked as well as charging status when the engine is running. The LED blinks every 3 seconds to minimize power draw. Suitable for use with any 12 volt lead-acid battery (AGM, gel cell, or standard).