Xantrex 12V 310Ah Lithium Battery with Internal BMS (XAN-884-0310-12)
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Xantrex 12V 310Ah Lithium (LiFePO4) Battery with Internal BMS
Upgrade your vessel's power system with the Xantrex 12V 310Ah Lithium Iron Phosphate (LiFePO4) Battery — a high-capacity, drop-in replacement for traditional AGM and lead-acid house banks. Engineered for the demands of live-aboard cruisers, offshore passagemakers, and power-hungry day boats, this battery delivers massive usable capacity with a fraction of the weight.
Key Features
- 310Ah Capacity at 12V – Up to 3,720Wh of stored energy; ideal for large house banks, electric propulsion support, and extended off-grid use
- Integrated Battery Management System (BMS) – Internal BMS protects against overcharge, over-discharge, short circuit, and thermal runaway for safe, worry-free operation
- LiFePO4 Chemistry – Lithium Iron Phosphate is the safest lithium chemistry available, with excellent thermal stability and a long cycle life (2,000+ cycles to 80% capacity)
- Lightweight vs. Lead-Acid – Significantly lighter than equivalent AGM batteries, reducing vessel weight and improving performance
- High Charge Acceptance – Accepts high charge rates for faster recharging from alternators, solar, or shore power
- Flat Discharge Curve – Maintains stable voltage throughout the discharge cycle, ensuring consistent performance for electronics and appliances
- Bluetooth Monitoring Ready – Compatible with Xantrex monitoring accessories for real-time state-of-charge visibility
Product Details
- Brand: Xantrex
- SKU: XAN-884-0310-12
- Voltage: 12V
- Capacity: 310Ah
- Chemistry: Lithium Iron Phosphate (LiFePO4)
- BMS: Internal
- Approximate Weight: 33 kg
- Recommended Use: Marine house bank, off-grid power, electric propulsion support
Compatibility
Works with Xantrex inverter/chargers, Freedom series chargers, and most 12V marine charging systems. Verify charger compatibility with LiFePO4 charge profiles before installation. Consult your Xantrex dealer or the product manual for wiring and installation requirements.
Note: Lithium batteries require a compatible lithium charge profile. Do not use with chargers set to AGM or flooded lead-acid profiles.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.