Description
RELiON RB52-LT: Cold Weather Lithium Battery 12V 52Ah Deep Cycle
RELiON RB52-LT is a 12V 52Ah lithium battery and is part of Low-Temperature Series. This compact and powerful lithium iron phosphate battery is specially designed for cold weather performance. The 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, uniformly heating the cells within the battery to 41°F (5°C), so that it can be charged at its full recommended current. LT batteries require no additional components such as heating blankets.
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 RB52-LT is a perfect choice for use in off-grid solar, remote monitoring, and in any application where charging in colder temperatures is necessary.
Applications: Marine, Recreational Vehicles, Solar, Camping & Backup Power
Electrical Specifications
Capacity @ 25A: 120 min
Resistance: ?50 m? @ 50% SOC
Efficiency: 99%
Self Discharge: <3% per Month
Maximum Modules in Series: 1 (Single-use)
Mechanical Specifications
Cell Type: Cylindrical
Chemistry: LiFePO4
Discharge Specifications
Maximum Continuous Discharge Current: 50 A
Peak Discharge Current: 100 A (7.5 s ±2.5 s)
BMS Discharge Current Cut-Off: 150 A ±20 A (10 ±5 ms)
Recommended Low Voltage Disconnect: 11 V
BMS Discharge Voltage Cut-Off: 9.2 V (2.3 ±0.1 vpc) (140 ±60 ms)
Reconnect Voltage: 10 V (2.5 ±0.1 vpc)
Short Circuit Protection: 200-600 ?s
Charge Specifications
Recommended Charge Current: 2.5 A - 25 A
Maximum Charge Current: 50 A
Charge Current 14 to 32 °F (-10 to 0 °C): ?0.1 C
Charge Current -4 to 14 °F (-20 to -10 °C): ?0.05 C
Recommended Charge Voltage: 14.2 V - 14.6 V
BMS Charge Voltage Cut-Off: 15.4 V (3.85 ±0.025 vpc) (1.1 ±0.4 s)
Reconnect Voltage: 14.6V (3.65 ±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)
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)
Heating Element Specifications
Heating Temperature Range: -4 to 41 °F (-20 to 10 °C)
Heating Time: 1 hr @ 4 A
Weight - 6.38
SKU - REL-RB52-LT
Product Type - Electrical & Navigation > Batteries > Batteries
