OptiMATE SOLAR DUO 40W Travel Kit 6-step 12V / 12.8V 3.33A sealed solar battery saving charger & maintainer

Solar panel with separate controller

Included in the kit are a rugged 40 W polycrystalline solar panel, firmware-updatable smart controller, and ruggedized accessories for on-the-go use. During daylight, the panel delivers an average of 3.33 A charging current with up to 5 A pulse bursts, capable of reviving batteries down to 4 V. In low-light or nighttime conditions, the controller switches to low-power monitoring mode, updating battery status every three seconds while drawing less than 0.5 mA.

The integrated 6‑stage solar charging program includes Test, Save, Charge, Optimize, Maintain, and Monitor stages, intelligently managing both lead-acid and LiFePO₄ batteries without risk of overcharging. Safety features include spark suppression, reverse-polarity protection, automatic fault shutoff, and temperature compensation for diverse climate conditions.

• Solar Panel Output: 40 W polycrystalline
  
• Maximum Charge Current: 3.33 A average; 3–5 A pulse bursts
  
• Battery Compatibility: 12 V lead-acid (flooded, AGM, GEL, EFB) and 12.8 V LiFePO₄ (4S)
  
• Recovery Start Voltage: From 4 V
  
• Charging Program: 6 stages – Test, Save, Charge, Optimize, Maintain, Monitor
  
• Monitoring Interval: Status update every ~3 seconds
  
• Operating Temperature: –20 °C to +40 °C
  
• Standby Current Draw: < 0.5 mA
  
• Cable Length (Panel to Controller): ~3.15 m
  
• Enclosure Rating: IP54 weather-resistant
  
• Included Accessories: 40 W panel, smart controller, travel bag, suction-mount solar fasteners, 2 m battery lead with interchangeable connectors (clips and ring terminals)
  
• Panel Size: ~680 × 420 × 30 mm
  

• Datasheet