RELiON RB300 12V 300Ah LiFePO4 Battery
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RELiON RB300 12V 300Ah LiFePO4 Battery
300Ah in a single battery. RELiON InSight BMS delivers cell-level monitoring via app. Preferred by liveaboards who want maximum capacity with minimum battery count.
The RELiON RB300 12V 300Ah LiFePO4 Battery is part of the RELiON RB Series lineup, engineered as a long-life lithium house bank solution. 300Ah in a single battery — maximum capacity with minimum installation complexity. InSight BMS — cell-level voltage, temperature, and state-of-charge via RELiON Bluetooth app.
Ideal For
Ideal for liveaboard cruisers, trawlers, and offshore boats replacing lead-acid house banks with lighter, longer-life lithium storage.
At a Glance
- Chemistry: LiFePO4
- Voltage: 12V
- BMS: InSight BMS — cell-level monitoring
- Cycle Life: 2,500+ at 80%
- Weight: 68 lbs
- Warranty: 3 Years
Complete Specifications
- Chemistry: LiFePO4
- Voltage: 12V
- BMS: InSight BMS — cell-level monitoring
- Cycle Life: 2,500+ at 80%
- Weight: 68 lbs
- Warranty: 3 Years
- App: Yes — RELiON app via Bluetooth
- Capacity: 300Ah
- Self-Discharge: Less than 3% per month
Shipping and tax are shown at checkout. Manufacturer warranty terms are included with the product. Contact us with vessel details before ordering.
Customer reviews will appear here when available.
Difficulty: Advanced
Estimated time: 1-6 hours
Professional installation: Recommended for most marine deployments.
Best Practices
- Verify mounting clearance before installation.
- Confirm BMS settings, fuse sizing, and ventilation for lithium installations.
- Use marine-grade wiring and connectors.
- Follow manufacturer networking and power specifications.
- Perform full system testing before vessel deployment.
Not sure this is the right fit? We will help you spec it.