OptiMate Lithium 4s 6A Lithium Series: 10-step 12.8V 6A sealed battery saving charger & maintainer

The OptiMate Lithium 4s 6A is a professional-grade 12.8 V/13.2 V LiFePO₄ (4‑cell) battery charger, tester, and maintainer ideal for powersport, automotive, marine, and compact battery applications. Designed for LiFePO₄ batteries ranging from 3 Ah to 72 Ah, this powerhouse combines advanced recovery, balancing, diagnostics, and maintenance in a rugged, weather-resistant package.

It employs Ampmatic technology to automatically adjust the charge current—up to 6 A—based on battery size and health. Starting from as low as 0.5 V, it runs through a comprehensive 10-step program: low‑volt start, pre-test, temperature evaluation, low‑volt save and test, conditioning, cell balancing, optimization, post-charge test, and continuous 24/7 maintenance  This intelligent sequence ensures deeply discharged packs are recovered safely, cell imbalance is corrected, and complete health diagnostics are performed.

Additional features include a BMS reset/tune button for waking protected batteries or providing stable voltage for ECU programming, and a weatherproof IP54-rated housing suitable down to –40 °C. The unit draws less than 0.5 W in standby, conserving energy while maintaining battery readiness 

• Battery Type: 12.8 V / 13.2 V LiFePO₄ (4-cell)
  
• Battery Capacity: 3–72 Ah
  
• Max Charge Current: 6 A (automatically adjusted)
  
• Minimum Start Voltage: 0.5 V
  
• Charge Program: Fully automatic 10-step cycle (recovery, pre-test, temperature check, save, condition, cell balance, optimize, post-test, maintenance)
  
• BMS Reset/Tune Mode: Yes, for protected batteries or stable supply
  
• Operating Temperature: –40 °C to +40 °C
  
• Housing: Sealed, weather-resistant (IP54)
  
• Standby Power Consumption: < 0.5 W
  
• Input Voltage: 100–240 VAC, 50–60 Hz
  
• Cables: 180 cm AC input lead, 180 cm DC output lead with SAE connector; includes battery clips and ring terminals
  
• Protection Features: Reverse polarity, spark suppression, automatic shutdown on fault/disconnection
  
• Dimensions & Weight: Approx. 220 × 90 × 55 mm; ~1.3 kg including cables
  

• Datasheet