RELiON RB300 12V 300Ah Lithium Deep Cycle Battery

This Group 8D lithium iron phosphate (LiFePO4) battery is ready to replace your heavy lead-acid battery bank in your sailboat, RV or solar energy system. It weighs only 82 lbs for a true 300 Amp Hour lithium battery that provides 100% of its rated capacity. The RB300 gives you the flexibility to replace several small, heavier lead-acid batteries in a single high capacity unit.

LiFePO4 batteries are lighter, take less space and last longer. While the up-front cost is higher than Gel, AGM or Lead-Acid the overall cost of ownership is lower over time because they require no maintenance and they have up to 10x longer life.

The RB300 offers high, reliable performance in any climate or condition for sailboats, RVs, campers and battery-based solar systems.

All RELiON Batteries use the safest and most stable components, including a LiFePO4 cathode and a built-in Battery Management System (BMS). The BMS ensures a long lifetime, safe handling - and high-accuracy State of Charge (SOC) calculations.

Applications: Marine, Recreational Vehicles, Solar & Electric Vehicles

Electrical Specifications

Capacity @ 25A: 720 min

Resistance: ?30 m? @ 50% SOC

Efficiency: 99%

Self Discharge: <3% per Month

Maximum Modules in Series: 6

Mechanical Specifications

Cell Type: Cylindrical

Chemistry: LiFePO4

Discharge Specifications

Maximum Continuous Discharge Current: 100 A

Peak Discharge Current: 200 A (7.5 s ±2.5 s)

BMS Discharge Current Cut-Off: 280 A ±50 A (9 ±4 ms)

Recommended Low Voltage Disconnect: 11 V

BMS Discharge Voltage Cut-Off: 8 V (2.0 ±0.08 vpc) (140 ±60 ms)

Reconnect Voltage: 9.2 V (2.3 ±0.1 vpc)

Short Circuit Protection: 200-600 µs

Charge Specifications

Recommended Charge Current: 15 A - 50 A

Maximum Charge Current: 100 A

Charge Current 32°F to 14°F (0 to -10 °C): ?0.1 C

Charge Current -4°F to 14°F (-20 to -10 °C): ?0.05 C

Recommended Charge Voltage: 14.2 V - 14.6 V

BMS Charge Voltage Cut-Off: 15.6 V (3.9 ±0.025 vpc) (1.1 ±0.4 s)

Reconnect Voltage: 15.2 V (3.8 ±0.05 vpc)

Balancing Voltage: 14.4 V (3.6 ±0.025 vpc)

Temperature Specifications

Discharge Temperature: -4 to 140 °F (-20 to 60 °C)

Charge Temperature: -4 to 113 °F (-20 to 45 °C) *Refer to charge currents below 0°C (32°F)

Storage Temperature: 23 to 95 °F (-5 to 35 °C)

BMS High Temperature Cut-Off: 176 °F (80 °C)

Reconnect Temperature: 122 °F (50 °C)