This OptiMate LFP 4s6A,  high-efficiency diagnostic charger and tester for LiFePO4/LFP batteries is perfect for charging and seasonal maintenance of a 12.8V-13.2V LiFePO4/LFP batteries sized from 2 to 100 Amp-hour.

Special features:
Battery SAVE mode with BMS reset : starts from 0.5V with continuous monitoring/testing of charge acceptance or bad/shorted cell condition. Unnecessary (and unsafe) charging of a bad battery is prevented. 
safeTº :Automatic charge rate adjustment to ambient temperature sensed at the charger.  Reduced charging below freezing, no charging if temperature is below -20ºC/-4ºF (can damage lithium batteries).
Ampmatic : Microprocessor adjusts current to ideal LiFePO4 charge curve to match battery size / condition, for fastest and most complete charge.
CHARGING AMPS : 6A (AmpMatic) 
USE : Indoor/Outdoor  (lowest temperature: -4°F / -20°C).
SAVE : Low Volt Start of 0.5V + 3-step low volt SAVE and TEST. 
IDEAL FOR : LiFePO4 (LFP) 4 series batteries from 2 – 100Ah.
INPUT : Global (100-240V 50-60Hz), high efficiency (CEC listed), fully sealed.
STYLE : Weatherproof case with wall mounts, with 6ft / 180cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector. A weatherproof battery lead & standard battery clip set is included.
 
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.