RB300-LT 12V 300Ah Cold Weather Deep Cycle Lithium Battery – Group 8D

The RB300-LT 12V 300Ah Group 8D Cold Weather Deep Cycle Lithium Battery is designed to deliver exceptional performance in freezing conditions. Equipped with a built-in low-temperature heating system, it automatically warms the battery before charging to protect cells and extend lifespan. Perfect for marine, RV, off-grid, and solar systems, it provides high capacity, long cycle life, and maintenance-free operation in any climate.

KEY FEATURES

• Built-in cold weather charging technology for low-temperature protection
• High 300Ah capacity for extended runtime in large systems
• Long cycle life with thousands of charge/discharge cycles
• Consistent voltage output for reliable performance
• Integrated Battery Management System for safety and efficiency
• Lightweight compared to traditional lead-acid batteries
• Maintenance-free design for convenience
• Shock and vibration resistant for rugged environments
• Eco-friendly LiFePO4 chemistry with no hazardous materials

Specifications

Electrical Specifications

• Nominal voltage: 12.8V
• Capacity: 300Ah
• Energy: 3840Wh
• Chemistry: Lithium Iron Phosphate (LiFePO4)
• Cycle life: 3500+ cycles at 80% depth of discharge
• Self-discharge: <3% per month

Discharge Specifications

• Max continuous discharge: 200A
• Peak discharge: 400A (7.5 ± 2.5 s)

Charge Specifications

• Recommended charge voltage: 14.2V – 14.6V
• Max charge current: 200A
• Low-temperature charge protection: Automatic internal heater activation

Temperature Specifications

• Discharge temperature: -4°F to 140°F (-20°C to 60°C)
• Charge temperature: -4°F to 113°F (-20°C to 45°C)

Mechanical Specifications

• Weight: 86 lbs (39 kg)
• Dimensions: Group 8D standard size (L x W x H)
• Terminal type: M8 bolt
• Waterproof rating: IP67

Certifications

• CE, UKCA
• UN38.3 (battery)
• UL1642 (cells)
• IEC62133 (cells)