RB300 12V 300Ah Deep Cycle Lithium Battery – Group 8D

The RB300 12V 300Ah Group 8D Deep Cycle Lithium Battery delivers exceptional energy capacity, extended cycle life, and superior performance for marine, RV, off-grid, and solar applications. Built with advanced LiFePO4 technology, it provides stable voltage, high efficiency, and maintenance-free operation. Perfect for large-scale energy needs, it ensures reliable power in demanding environments.

KEY FEATURES

• High-capacity 300Ah design for extended runtimes
• Long cycle life with thousands of charge/discharge cycles
• Consistent voltage output for dependable performance
• Integrated Battery Management System for safety and protection
• Lightweight compared to traditional lead-acid batteries
• Maintenance-free operation for convenience
• Shock and vibration resistant for rugged use
• Eco-friendly LiFePO4 chemistry with no hazardous materials

Specification

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

Temperature Specifications

• Discharge temperature: -4°F to 140°F (-20°C to 60°C)
• Charge temperature: 32°F to 113°F (0°C to 45°C)

Mechanical Specifications

• Weight: 82 lbs (37.2 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)

Manuals and Downloads

• Datasheet
• Warranty