TECMATE Optimate 6 Charger - Select TM191

Perfect for starter and deep-cycle 12V batteries that demand accurate temperature-controlled charging and unsupervised safe long term maintenance, Voltage selection (14.4V / 14.7V) ensures the battery receives charge at the correct voltage, Power supply mode delivers stable power for vehicle system reprogramming, showroom vehicle demo or retaining memorized settings when battery cables are disconnected to fit powered accessories or replace the battery, Charging amps: 5A (Ampmatic) @ 14.4V/14.7V; 4A @ 13.6V, Use indoors or outdoors (lowest temperature: -40?F / -40?C), Low Volt Start of 0.5V and 2-step desulphation recovery, Ideal for STD, AGM, gel and Deep Cycle 12V batteries from 3 ? 240Ah, Input: global (100-240V 50-60Hz), high efficiency (CEC listed), fully sealed, Weatherproof case with wall mounts, 6 foot AC supply lead and 6 foot charge lead ending in SAE connector, Weatherproof battery lead and standard battery clip set included, 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