RB12 12V 12Ah Deep Cycle Lithium Battery

Model #: RB12 SKU: RB12

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RELiON RB12 12V 12Ah LiFePO4 Deep Cycle Battery

RELiON RB12 12V 12Ah LiFePO4 Deep Cycle Battery (Model: RB12) – High-Performance Power Solution for Marine, RV, Solar, Industrial, and Recreational Applications

The RELiON RB12 12V 12Ah LiFePO4 Deep Cycle Battery (Part No: RB12) is a lightweight powerhouse delivering 12Ah of reliable LiFePO4 power at 12.8V (153.6Wh), offering twice the usable capacity of lead-acid batteries at half the weight (just 3.6 lbs), with over 3,500 cycles at 80% DoD. Featuring an integrated BMS for safety and efficiency, IP66 waterproof enclosure for harsh environments, and F2 terminals for easy integration, it supports 10A continuous discharge (20A peak for 7.5s), making it ideal for small electronics, alarms, portable lighting, security systems, or as a direct replacement for UB12120 SLA batteries in maintenance-free applications.

Key Features:

  • High-Capacity Design: 12Ah at 12.8V (153.6Wh) for reliable performance in 12V systems, perfect for lighter industrial and recreational loads.
  • Integrated BMS: Protects against overcharge, over-discharge, short-circuit, and thermal issues; ensures cell balancing for optimal longevity.
  • High Discharge Capability: 10A continuous / 20A peak (7.5s) for powering devices up to 128W or high-draw electronics.
  • Extended Cycle Life: 3,500+ cycles at 80% DoD, with <3% monthly self-discharge for reliable standby power.
  • Versatile Compatibility: Drop-in replacement for UB12120 SLA batteries; supports series/parallel configurations (up to 1S); compatible with most 12V chargers.
  • Rugged Durability: IP66-rated ABS enclosure, vibration-resistant for marine and outdoor use; operates from -4°F to 140°F discharge.
  • Eco-Friendly: Non-toxic LiFePO4 chemistry, recyclable, and zero maintenance compared to lead-acid alternatives.
  • 10-Year Warranty: Backed by RELiON’s commitment to quality in engineered applications.

Specifications at a Glance:

  • Nominal Capacity: 12Ah at 12.8V (153.6Wh).
  • Nominal Voltage: 12.8V.
  • Charge Voltage: 14.2V–14.6V; Max Charge Current: 10A.
  • Discharge: 10A continuous / 20A peak (7.5s); Low Voltage Cutoff: 8.0V.
  • Cycle Life: 3,500+ at 80% DoD; Operating Temperature: Charge -4°F–113°F / Discharge -4°F–140°F.
  • Certifications: UN38.3, CE, UKCA, UL1642 (cells), IEC62133 (cells).
  • Dimensions: 5.9" L x 3.9" W x 4.0" H (151 x 98 x 101 mm); Weight: 3.6 lbs (1.65 kg).

Pair this battery with RELiON chargers or solar controllers for a complete, high-efficiency power ecosystem. Whether powering small marine accessories, RV lighting, or industrial sensors, the RB12 delivers unmatched reliability and portability. Order now and experience RELiON’s engineered excellence—stocked and ready to ship from relionbattery.com!

(For full technical details, download the datasheet or manual linked on the product page.)

Download Data Sheet

RELiON RB12 12V 12Ah LiFePO4 Deep Cycle Battery