OptiMate Lithium 4S 12.8V 0.8A LiFePO4 Battery Charger and Maintainer
LiFePO4 batteries require a fundamentally different charge curve than conventional lead-acid chemistries, and the OptiMate Lithium 4S is engineered specifically for that task. It reads battery condition in real time, adjusts charge current to the ideal LFP curve, and holds the pack at peak capacity without risking overcharge or voltage-induced cell damage across seasonal storage.
Key Features
- 8-step LiFePO4-specific charge program optimized for 4-cell 12.8V lithium packs – not a modified lead-acid charger
- Lithium save mode recovers LFP batteries from as low as 0.5V; continues charging if healthy, stops and warns if faulty
- AmpMatic microprocessor adjusts current to match the battery’s actual size and condition throughout each charge cycle
- Safe to leave connected 24/7 – maintenance mode holds the battery at full charge without overcharge risk
- Fully automatic operation from connection to maintenance; no manual program selection required
- Includes weatherproof battery lead and battery clip set for direct-battery connection
Technical Specifications
- Charging Voltage: 12.8V (LiFePO4 4S)
- Charging Current: 0.8A
- Charge Program: 8-step automatic
- Low Volt Recovery: From 0.5V
- Battery Chemistry: LiFePO4 (lithium iron phosphate) 4S / 12.8V only
- Input: Global (100-240V AC)
Fitment Notes
- Universal charger – no vehicle-specific selection required
- Designed exclusively for 4-cell 12.8V LiFePO4 (lithium iron phosphate) batteries
- Not compatible with lead-acid (STD, AGM, GEL) batteries – use OptiMate 3 or OptiMate 4 Quad for lead-acid chemistry
- Not compatible with lithium chemistries other than LiFePO4 (e.g., Li-ion, LiMn)
- Confirm battery is LiFePO4 chemistry before connecting; check battery label or manufacturer specification
