
RELiON | RB100, LIFEPO4 Legacy Lithium Battery 31 4SC 12V, Series Capable up to 48V, 12.8V, 100 Amp Hour
RB100, LiFePO4 Legacy Lithium Battery 31 4SC 12V, Series Capable up to 48V, 12.8V, 100 Amp Hour
Extend your run time and lighten your load with the RB100, LiFePO4 Legacy Lithium Battery 31 4SC 12V, Series Capable up to 48V, 12.8V, 100 Amp Hour. Designed as a direct replacement for Group 31 AGM, GEL, or lead-acid batteries, this lithium iron phosphate (LiFePO4) battery delivers dependable deep cycle performance with less weight, more power, and a dramatically longer lifespan.
Weighing just 30 lbs, the RB100 is one of RELiON’s most popular models—offering exceptional energy density in a compact form factor. It’s the ideal choice for a wide range of applications, from trolling motors and marine use to solar energy storage and off-grid systems.
Key Features & Benefits
-
Lighter Weight
Up to 60% lighter than comparable lead-acid batteries—great for mobility and fuel efficiency in marine and RV setups. -
Longer Life Span
Up to 10x more cycles than lead-acid (2,000+ cycles at 80% depth of discharge), reducing total cost of ownership. -
Constant Voltage Output
Provides steady power throughout the entire discharge cycle—your equipment runs stronger and longer. -
100% Usable Capacity
Unlike lead-acid, lithium lets you tap into the full 100Ah capacity with zero performance dip. -
Maintenance-Free Design
No watering, no corrosion, no mess—just install, use, and recharge. -
Series & Parallel Capable
Supports configurations up to 48V systems for flexible scalability.
Specification
- Amperage Hours: 100Ah
- Battery Type: Sealed, Lithium Iron Phosphate
- Best Use: Deep Cycle
- Dimensions: 13" L x 6.8" W x 8.8” H
- Reserve Minutes: 240 Minutes
- Type: Threaded Insert
- Voltage: 12/24V Systems
- Warranty: 10 Years Pro-Rated
- Weight: 26.4 Pounds
Manuals and Downloads
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We do not sell any used or refurbished items.

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