Check the listing for details. Tecmate OptiMate Lithium 4s 0.8A Battery Charger/Maintainer (TM-471). Condition: New. Listed at 79.95 USD. The OptiMate Lithium 0.8A 4S charges LiFePO4 / LFP (Lithium Iron Phosphate) 4-series batteries with nominal voltage of 12.8V - 13.2V.Saves low voltage LiFePO4 batteries.Specialized LiFePO4 charge cycle.Maintains and protects LiFePO4 batteries.Battery BMS reset.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. Three-year limited replacement warranty.Detailed Specifications:Charging amps: 8A.Use: Indoor / Outdoor (lowest temperature: -4F / -20C).Save: Low Volt Start of 0.5V + three-step low-volt save and test.Ideal for: LiFePO4 (LFP) 4 series cell 12.8 / 13.2V batteries from 2 - 30Ah.Input: Global (100 - 240V 50 - 60Hz), high efficiency (CEC listed), fully sealed.Style: Weatherproof case with wall mounts, with 6-foot / 180 cm. AC supply lead and 6-foot / 180 cm. charge lead ending in SAE connector. Weatherproof battery lead and standard battery clip set included.