Description
RELiON Legacy Series Lithium Battery RB36V40 is a 36-volt, Group 31 lithium iron phosphate (LiFePO₄) deep cycle battery engineered for high-performance marine applications, including advanced trolling motor and 36V onboard power systems. Designed to deliver maximum usable energy with minimal installation complexity, this battery provides 20% more capacity than comparable series configurations while maintaining a compact Group 31 footprint.
With 40 amp hours of capacity, 175 amp peak discharge current, and 1536 watt-hours of energy, the RB36V40 delivers consistent, efficient power while weighing approximately 70% less than equivalent lead-acid batteries. Its parallel-ready design, improved connectors, and IP67-rated enclosure make installation simple and performance reliable in harsh marine environments. An integrated Battery Management System (BMS) ensures safety, longevity, and accurate performance monitoring.
Key Specifications
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Manufacturer Part Number: RB36V40
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Series: Legacy Series
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Voltage: 36 Volt
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BCI Group Number: 31
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Battery Type: Marine Deep Cycle
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Electrolyte Style: Lithium Iron Phosphate (LiFePO₄)
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Amp Hour Rating: 40 AH
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Peak Discharge Current: 175 Amps
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Energy Capacity: 1536 Watt-Hours
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Reserve Capacity: 96 Minutes
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Terminal Location: M8 Threaded Stud Top Terminals
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Case Material: ABS
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Length: 13 Inches
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Width: 6.8 Inches
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Height: 8.4 Inches
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Marine Rated: Yes
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Universality: Fully Universal
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Efficiency: 99%
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Ingress Protection: IP67
Certifications
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Battery: UN38.3, CE, UKCA
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Cells: UL1642, IEC62133
Features & Benefits
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36V lithium architecture reduces wiring complexity and improves system efficiency
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Parallel-ready design allows greater capacity with fewer batteries
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High peak discharge capability for demanding marine loads
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Fast recharging performance minimizes downtime
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Compact Group 31 footprint simplifies onboard installation
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IP67 waterproof enclosure for harsh marine conditions
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Approximately 70% lighter than comparable lead-acid batteries
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Integrated BMS for protection, safety, and long service life
Applications
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36V trolling motor systems
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Marine electrical power systems
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High-performance fishing boats
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Advanced onboard marine electronics
Warranty
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Limited 10-Year Product Warranty
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3-Year Replacement Warranty
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Non-Returnable Item
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