RELiON RB20-X - 12V 20Ah Lithium Deep Cycle Battery

RELiON RB20-X — 12V 20Ah LiFePO4 Lithium Deep Cycle Battery

The RELiON RB20-X is a 12V 20Ah lithium iron phosphate (LiFePO4) deep cycle battery engineered for fish finders, solar lighting, scooters, robotics, and remote power applications. Rated for 4,000+ cycles and backed by a 5-year warranty, it delivers twice the usable energy at half the weight of equivalent lead-acid batteries — with IP66 environmental protection for demanding outdoor use.

Key Features

• LiFePO4 chemistry — safe, stable lithium iron phosphate cells
• 4,000+ cycle life — significantly outlasts lead-acid alternatives
• IP66 rated — dust-tight and water-resistant enclosure
• 99% efficiency — minimal energy loss during charge/discharge
• Built-in BMS — short circuit, over-voltage, and temperature protection
• Low self-discharge — <3% per month
• 5-year warranty

Specifications

• Voltage: 12.8V (nominal)
• Capacity: 20Ah | Energy: 256Wh
• Max Continuous Discharge: 50A | Peak: 90A (4s)
• Charge Voltage: 14.2V – 14.6V
• Chemistry: LiFePO4 (cylindrical cells)
• Terminal: Flag Terminal
• Length: 7.1" | Width: 3.0" | Height: 6.7"
• Weight: 6.1 lbs (2.75 kg)
• Certifications: CE, UN38.3, UL1642, IEC62133

Ideal For

• Fish finders and marine electronics
• Solar lighting and remote power systems
• Scooters and robotics
• Camping, hiking, and off-grid applications

Ships from Thunder Battery — Canada's trusted lithium battery dealer.