RB52 - 12V | 52Ah | 665 Wh Lithium Deep Cycle Battery

The RB52 is a 12V 52Ah lithium marine deep cycle battery. The RB52 offers abundant power in a small footprint. It’s 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

• AWP
• Floor Machines
• Marine
• Recreational Vehicles
• Solar
• Camping

ELECTRICAL SPECIFICATIONS

• Nominal Voltage: 12.8 V
• Nominal Capacity: 52 Ah
• Capacity @ 25A: 120 min
• Energy: 665 kWh
• Resistance: ≤50 mΩ @ 50% SOC
• Efficiency: 99%
• Self-Discharge: <3% per Month
• Maximum Modules in Series: 4

MECHANICAL SPECIFICATIONS

• Dimensions (L x W x H): 7.8 x 6.5 x 6.8” (197 x 166 x 173 mm)
• Weight: 13.7 lbs (6.2 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: 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 32ºF to 14ºF (0 to -10 ºC): ≤0.1 C
• Charge Current -4ºF to 14ºF (-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 ±0.025 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 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: 176 ºF (80 ºC)
• Reconnect Temperature: 122 ºF (50 ºC)

COMPLIANCE SPECIFICATIONS

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

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