BHopkins The Engager 20099 Engager Break Away Systerm WBattery Meter (Retail Box) ReviewbP PP Hopkins The Engager 20099 Engager Break Away Systerm WBattery Meter (Retail Box) PActivates trailer brakes upon separation from tow vehiclePBuilt-in battery meter with LED test lightsPLED's indicate: fully charged, re-charge, or chargingPConvenient test button verifies battery chargePBuilt-in battery charger that charges battery while plugged into the vehicleP