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PRICE: $656.95

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The RB50 is a 12V 50Ah lithium marine deep cycle battery. The RB50 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 RB50 features installation flexibility and no maintenance over the life of the battery. It maintains consistent power and is equipped with an M8 terminal type and a built-in battery management system (BMS).

PRODUCT SPECIFICATIONS
  • Voltage: 12.8V
  • Amp Hours: 50Ah
DIMENSIONS & WEIGHT
  • Length: 7.8 in (197 mm)
  • Width: 6.5 in (166 mm)
  • Height: 6.8 in (173 mm)
  • Weight: 14.8 lbs (6.7 kg)
APPLICATIONS
  • AWP
  • Floor Machines
  • Marine
  • Recreational Vehicles
  • Solar

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DATA SHEET

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Chemical Specifications

Nominal Voltage 12.8 V
Nominal Capacity 50 Ah
Capacity @ 25A 120 min
Energy 640 Wh
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 15 lbs (6.7 kg)
Terminal Type M8
Terminal Torque 80 - 100 in-lbs (9 - 11 N-m)
Case Material ABS
Enclosure Protection IP56
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 25 A
Maximum Charge Current 50 A
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 32 to 113 ºF (0 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

Certifications CE (battery)
UN38.3 (battery)
UL1642 & IEC62133 (cells)
Shipping Classification UN 3480, CLASS 9

PERFORMANCE CHARACTERISTICS

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