RB300-LT - 12V | 300Ah | 3840Wh Lithium Low Temperature Battery

The RB300-LT is a 12V 300Ah lithium battery and is part of RELiON’s Low-Temperature Series. This lithium iron phosphate battery is specially designed for cold weather performance. RELiON’s LT Series batteries can safely charge at temperatures down to -20°C (-4°F) using a standard charger. The system features proprietary technology which draws power from the charger itself, requiring no additional components.

The entire process of heating and charging with the LT Series is completely seamless. Simply plug the battery into the regular lithium charger and the internal heating and monitoring system takes care of the rest. Because it takes time to heat the cells, the charging process in below-freezing temperatures could take a little longer.

The Low-Temperature Series battery has the same size and performance as other RELiON batteries but can safely charge when temperatures drop as low as -20°C using a standard charger. The RB300-LT is an ideal choice for use in RVs, off-grid solar, electric vehicles, and in any application where charging in colder temperatures is necessary.

APPLICATIONS

• Backup Power
• Electric Vehicles
• Marine
• Recreational Vehicles
• Solar

ELECTRICAL SPECIFICATIONS

• Nominal Voltage: 12.8 V
• Nominal Capacity: 300 Ah
• Capacity @ 25A: 720 min
• Energy: 3840 Wh
• Resistance: ≤30 mΩ @ 50% SOC
• Efficiency: 99%
• Self-Discharge: <3% per Month
• Maximum Modules in Series: 1 (Single Use)

MECHANICAL SPECIFICATIONS

• Dimensions (L x W x H): 20.6 x 10.5 x 8.7” (522 x 267 x 220 mm)
• Weight: 76.1 lbs (34.54 kg)
• Terminal Type: M8 x 1.25
• Terminal Torque: 80 - 100 in-lbs (9 - 11 N-m)
• Case Material: ABS
• Enclosure Protection: IP66
• Cell Type – Chemistry: Cylindrical - 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) | 8.8V 2.2±0.3V/cell
• Short Circuit Protection: 200-600 μs

CHARGE SPECIFICATIONS

• Recommended Charge Current: 15 A - 50 A
• Maximum Charge Current: 100 A
• Charge Current 14 to 32 ºF (-10 to 0 ºC): ≤0.1 C
• Charge Current -4 to 14 ºF (-20 to -10 ºC): ≤0.05 C
• Recommended Charge Voltage: 14.2 V - 14.6 V
• BMS Charge Voltage Cut-Off: 15.6 V (3.9 ±0.05 vpc) (1.0 ±0.5 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 ºF (-20 to 60 ºC)
• Charge Temperature: -4 to 113 ºF (-20 to 45 ºC)
• Storage Temperature: 23 to 95 ºF (-5 to 35 ºC)
• BMS High Temperature Cut-Off: 176ºF (80ºC)
• Reconnect Temperature : 122 ºF (50 ºC)

HEATING ELEMENT SPECIFICATIONS

• Heating Temperature Range: -4 to 41 ºF (-20 to 5 ºC)
• Heating Time: Approximately 1.5 hr @ 15 A

COMPLIANCE SPECIFICATIONS

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

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