OptiMate Lithium LFP 4s1A: LITHIUM series 12.8 V 0.8A LiFePO₄ Lithium Battery Saver, Charger, Tester & Maintainer

The OptiMate Lithium LFP 4s1A (model: TM470) is a battery saver & fast charger built specifically for 4-cell-in-series (12.8 V / 13.2V) LiFePO₄ batteries. With 0.8A maximum current, it is ideal for charging and maintaining high performance LFP lithium batteries in motorcycles or in small deep cycle LFP batteries up to 12Ah.

Best of all, it can save a dead-flat lithium battery automatically from as low as 0.5 Volts and 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 LFP4s1A 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.

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: Connect to the battery, then connect to AC power and reset pulses will be delivered for a battery with smart battery management with deep discharge protection.

AUTOMATIC: Connect to your Lithium LFP / LiFePO4 battery and the 9-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: Efficient variable frequency fly-back power conversion reduces power usage and if left connected to AC power, standby power is less than 0.5W. OptiMate saves you money in electricity cost!

More Features:

• Charge current – Maximum: 0.8 Amps at 12.8V.
• 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: 0.23A.
• 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 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 LFP4s1A (model TM470) 12.8V Sealed Battery Charger
• O‑04 crocodile clip set
• O‑01 fused battery lead with M6 ring terminals
• User manual
• 3‑year limited replacement warranty