Optimate 6-Step Battery Chargers

The Optimate 6-Step battery chargers test the battery's condition at connection and then decide the optimal charging method as it begins to charge the battery. This multi-step battery charger can save a deeply discharged, sulfated battery from as low as 2-volt using a larger source battery (ideal 1.5x capacity) or DC supply without fear of discharging the source, thanks to Optimate's Source Battery Protection. The Optimate TM500's maintenance mode keeps battery at full charge without risk of overcharging, prolonging battery life and improving battery performance. Key features: * Ideal for both lead-acid and LFP (LiFePO4) batteries * Fully automatic—connect the battery to the OptiMate battery charger and it does the rest, no supervision required! * Off-Grid charging—charge both Lead-acid and Lithium batteries from another 12 V battery! * Get your battery to work—saves your 12 V battery (AGM, GEL, STD, Starter, Deep Cycle) * Charging is automatic—the multi-step program saves a discharged battery from as low as 2-volts and will then charge and maintain the battery, all automatically with long-term maintenance mode that keeps the battery at its optimal level * Optimate DC to DC's highly efficient long-term maintenance mode protects the source battery, drawing only when the battery under charge needs it * Intelligent wake up mode—BMS (Battery Management System) wake up mode safely wakes battery with integrated BMS protection out of sleep mode * Continuous charging if healthy, stops and warns if faulty * No risk overcharging—totally safe for vehicle electronics, sparks suppressed and safe for long-term battery maintenance * Automatic shut-down if short-circuited or battery disconnected Show Less