About This

• 【All-Weather Self-Heating Function】Experience reliable power in any climate with Dumfume's intelligent self-heating technology. When temperatures drop below freezing (32°F/0°C), Dumfume 12V 314Ah LiFePO4 Battery automatically activates its internal heating system using charger power. Once cells reach safe temperatures, charging begins seamlessly. This feature eliminates winter charging worries, making it perfect for ice fishing expeditions, snowy RV trips, and year-round off-grid adventures.
• 【Massive 314Ah Capacity & Extended Lifespan】Power your adventures longer with a genuine 314Ah capacity (4.01kWh) that outperforms standard 300Ah batteries. Built with premium LiFePO4 cells, Dumfume 12V 314Ah LiFePO4 Lithium Battery delivers exceptional longevity with over 4,000 cycles at 100% depth of discharge and extends to 6,000+ cycles at 80% DOD. Drastically reducing long-term costs compared to traditional lead-acid batteries that offer only 300-500 cycles.
• 【High-Power 2560W Output & Complete Protection】Handle demanding applications with confidence thanks to the robust 2560W continuous output from the built-in 200A BMS. DUMFUME 300ah (314ah) deep cycle battery advanced system provides comprehensive protection against overcharge, over-discharge, over-current, short circuits, and overheating. Whether running microwaves, electric kettles, power tools, your equipment remains safe while delivering consistent, reliable performance in all conditions.
• 【Compact & Lightweight Design】Achieve more with less space and weight. Measuring 15.16"×7.59"×9.84" and weighing only 57.28 lbs, Dumfume 12V 314Ah Self-Heating LiFePO4 Lithium Battery offers exceptional energy density in a compact form factor. The space-efficient design with robust ABS casing makes it an ideal drop-in replacement for RV power systems, solar energy storage, home backup power, and various off-grid applications where space optimization and easy installation are crucial.
• 【Flexible Expansion & Notes】DUMFUME 12v lithium battery Create custom power solutions with series/parallel support for up to 4S4P configurations. Expand your system capacity and voltage to meet growing energy needs. Please note: The self-heating function requires a charging current exceeding 10A to activate properly. This model cannot be mixed with non-heating versions in the same system. For optimal battery health during extended storage, perform a full charge/discharge cycle every 6 months.