Relion RB52 12V 52Ah Lithium Iron Phosphate Deep Cycle Battery

The Relion RB52 is a high-performance 12-volt lithium iron phosphate (LiFePO4) deep cycle battery delivering 52 amp-hours of reliable power in a compact Group 31 footprint. Engineered for demanding applications including RVs, marine vessels, solar energy storage, and off-grid power systems, this advanced lithium battery offers superior performance over traditional lead-acid batteries.

Key Features:

• Advanced LiFePO4 Chemistry: Safer, more stable lithium technology with excellent thermal stability and long cycle life
• Lightweight Design: Significantly lighter than comparable lead-acid batteries while maintaining Group 31 form factor compatibility
• Deep Discharge Capability: Can be safely discharged to much lower levels than lead-acid without damage, providing more usable capacity
• Long Cycle Life: Thousands of charge/discharge cycles compared to hundreds for traditional batteries
• Fast Charging: Accepts higher charge currents for quicker recharge times
• M8 Threaded Stud Terminals: Secure bolt-on connections for reliable electrical contact
• Maintenance-Free: No watering, equalizing, or regular maintenance required
• Durable ABS Case: Rugged construction withstands harsh environments and vibration

Specifications:

• Voltage: 12.8V nominal (4-cell configuration)
• Capacity: 52 amp-hours
• Dimensions: 7.8" L × 6.5" W × 6.8" H
• Terminal Type: M8 bolt terminals
• Case Material: ABS plastic
• Battery Group Size: Group 31 equivalent

Ideal for applications requiring reliable deep cycle performance, the RB52 provides consistent power delivery, minimal voltage drop under load, and exceptional durability. Its lithium iron phosphate chemistry makes it an excellent choice for renewable energy systems, electric vehicles, trolling motors, and auxiliary power applications where weight savings and long service life are critical.