If you have a vehicle you don't use every day, just connect our CTEK 3300 battery charger and relax. If the battery is low, the compact unit will recharge it at an optimal rate, varying both current and voltage automatically. When the battery is fully charged, this brainy charger will change over to a maintenance mode to keep your battery in top condition--for longer battery life. Clip onto battery terminals or attach connectors permanently to battery and unplug when not in use. Works for all 12V lead-acid automotive-type batteries (including Optima).
Interested in more battery charger options or even a way to monitor battery level without opening your hood then take a look at our other CTEK products.