OptiMate 1 6/12VOptiMate 1 VoltMatic BRONZE series: 4-step 6V / 12V 0.6A battery charger & maintainer.The fully automatic battery maintainer for your 6V or 12V lead-acid batteries – Guarantees more battery power, longer battery life.Ideal for 6V or 12V lead-acid batteries (STD, AGM, GEL).Delivers 0.6 Amps charge current recommended for maintenance of smaller batteries.Charges and delivers long term maintenance. Connect to the battery and OptiMate 1 VoltMatic does the rest, no supervision required.VOLTMATIC: 6V or 12V charge mode selection according to battery voltage.Dust proof plug in case style.Safe to leave connected full electronic protection.Maintains battery at full charge and good health.Low Volt Start of 4V. Green Technology.Energy saving technology - stand-by power less than 0.5W - efficient 24-7 battery maintenance. IP50: Weatherproof - rated for use down to -20°C / -4°F.