RELiON RB52 12V 52Ah Lithium Deep Cycle Battery

The RB52 is a 12V 52Ah lithium marine deep cycle battery. RELiON RB52 offers abundant power in a small footprint. It is versatile and compact enough to be used in many marine applications including smaller boats with lower battery requirements, boats that require two of the same batteries and boats with electrical systems designed for just one battery.

The RB52 is a lithium iron phosphate (LiFePO4) battery with more power, less weight and up to 10x longer life than its lead-acid counterparts. Lithium is the logical choice for marine applications where you need a longer run time and reliability. RELiON lithium batteries provide more energy for high consumption than traditional lead-acid batteries. Lead-acid batteries also need to be maintained. If they are not maintained properly, their life span is shortened. Because lithium batteries require no active maintenance, a one-time purchase guarantees better lifetime value.

Applications: Marine, Recreational Vehicles, Solar, Camping, AWP & Floor Machines

Electrical Specifications

Capacity @ 25A: 120 min

Resistance: ?50 m? @ 50% SOC

Efficiency: 99%

Self Discharge: <3% per Month

Maximum Modules in Series: 4

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: 170 A ±20 A (10 ±5 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: 2.5 A - 25 A

Maximum Charge Current: 52 A

Charge Current 32° to 14°F (0 to -10 °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: 15.6 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)