The OptiMate Lithium LFP 4s6A (model: TM391) is a battery saver & fast charger built specifically for 4-cell-in-series (12.8 V / 13.2V) LiFePO₄ batteries. With 6 A maximum current and advanced Ampmatic control, it is ideal for charging and maintaining high performance LFP lithium batteries in sports cars, race vehicles or camping equipment with deep cycle LFP batteries. The Ampmatic control can also adjust current lower for smaller batteries. In extreme temperatures charge current is reduced to protect your lithium LFP battery that needs a slower charge below O°C or above 45°C. Best of all, it can save a dead-flat lithium battery automatically from as low as 0.5 Volts and at a push of a button it can reset the BMS (battery management system) of a lithium battery with built-in deep discharge protection. Its fully automatic very smart plug-and-play design and safe-for-vehicle-electronics technology means all you must do is connect it to the battery and the OptiMate Lithium LFP4s6A automatically saves, charges, tests the battery and then OptiMate’s proven 24-7 ‘connect & forget’ safe care makes sure your expensive lithium battery remains ready and well protected. AmpMatic : smart current control technology automatically adjusts current from 6A down to 1A to charge smaller batteries - smaller battery gets less current, bigger battery gets more! LOW VOLT START & LITHIUM-SAFE RECOVERY: Saves a dead-flat battery from as low as 0.5V with lithium specific recovery that reconditions the battery to once again accept normal charge. During reconditioning it tests cell health is good it continues reconditioning, but if permanent damage is found, it will stop charging to prevent overheating of damaged cells. BMS RESET: Pushbutton activated BMS reset pulses for a battery with smart battery management with deep discharge protection. TUNE MODE: power support mode at a fixed 13.6V for fault finding or updating of vehicle software. Selectable if battery is 50% or more charged. AUTOMATIC: Connect to your Lithium LFP / LiFePO4 battery and the 10-step smart program does the rest automatically! SAFE: Smart electronics protects against accidental reverse polarity connection. No sparks if clamps touch as the output remains off until it is connected to a battery with voltage. Testing during recovery mode will prevent battery overheating if damaged. GREEN TECHNOLOGY: Hi-tech industrial level power conversion with power factor correction & synchronous rectification makes this 72W battery charging platform one of the most efficient in the industry. If left connected to AC power, standby power is less than 0.5W. OptiMate 6 / LFP 6A uses 50% less power than ‘other brand’ chargers and guaranteed to save you money in electricity cost! More Features: Charge current – Maximum: 5.6 Amps at 12.8V, with Ampmatic automatic current able to vary between 0.4A and 6 Amps for a smaller battery. Lithium LFP/LiFePO4 12.8V/13.2V** Battery Compatibility – Designed specifically to safely recover, charge, test and maintain 24-7 LiFePO4 / LFP 4-cell-in-series batteries. Lithium specific maintenance OptiMate Lithium LFP monitors the battery hourly and if it needs charge (below 70%) it brings it back up to 90% for extended life. (Lithium battery capacity and life reduces if kept at 100% when not used). ** nominal voltage is 12.8V (4 x 3.2V in series), but some battery brands claim 13.2V (4 x 3.3V in series). Global input (100–240 V, 50 -60Hz) – connect with Type-C European 2-pin plug. Max AC Amps at 240V: 0.36A. Energy efficient power conversion - power factor correction and synchronous rectification. Safe for Sensitive Electronics – No overcharging, spark-suppressed and short-circuit protected. Eco-Friendly & Weatherproof – For indoor or outdoor use, even in extreme cold (–40°C) or heat (40°C). Plug & Play – Includes a set of battery clamps for quick connect and a fused battery lead with M6-M8 dual size ringlets that can be permanently fitted to the battery. Connect & Forget - Fully automatic time limited charging followed by 24-7 smart lithium friendly maintenance. (Technical specifications PDF) What’s in the Box OptiMate Lithium LFP4s6A (model TM391) 12.8V Sealed Battery Charger O‑04 crocodile clip set O‑01N fused battery lead with M6-8 ring terminals User manual Warranty 3‑year limited replacement warranty
