OptiMate 2 is the versatile fully sealed automatic battery maintainer – Ultimate maintenance for starter or deep cycle batteries! Charges and delivers long term maintenance – Connect to the battery and OptiMate 2 does the rest, no supervision required! MORE FEATURES: For lead-acid (Pb) 12V power sport battery types including STD (with filler caps), AGM, GEL (sealed VRLA), deep cycle & EFB. Safe to leave connected. Full electronic protection. Maintains battery at full charge and good health. Low Volt Start of 2V. Energy saving technology.√ Stand-by power less than 0.5W.√ Efficient 24-7 battery maintenance. Weatherproof. Rated for use down to -40°C / -40°F. IDEAL FOR: AGM, GEL & STD 12V batteries from 2.5 – 38Ah CHARGING AMPS: 0.8A (constant current) CHARGING VOLTS: nominal: 12V range: 2V - 14.4V OPERATION: Fully automatic STEPS: 4 FEATURES: Senses the battery condition, recharges and then keeps the battery 100% ready. This will extend life and improves performance of a 12V battery. USE: Indoor (lowest temperature: -40°F / -40°C). INPUT: Global (100-240V 50-60Hz), high efficiency (CEC listed). STYLE: Weatherproof case with wall mounts, with 6ft / 180cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector. SAFE: No risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-down if short-circuited or battery disconnected. INCLUDED: Weatherproof battery lead & battery clip set. WARRANTY: 3-year limited replacement warranty.