The all new Vision X maintenance charger can revive lost battery capacity on batteries up to 32 amp hours. The unique multi stage charging knocks the battery plates clean of harmful deposits restoring the battery to its original capacity. These can also be used as a maintenance charger for batteries up to 120ah. The auto shut off feature allows you to leave the smart charger attached to your battery indefinitely by constantly monitoring the battery voltage and only charging the battery when the voltage drops below fully charged levels. This kit includes temporary and permanent battery connections with a quick release plug for use on multiple vehicles.