About This

• 【Unmatched Power & Safety with A-Grade Cells】DUMFUME premium 12V 300Ah lithium battery uses automotive-grade A+ LiFePO4 cells and a 200A BMS for full protection (overcharge, over-discharge, temperature). With 4000+ cycles at 80% DOD, this 300Ah LiFePO4 battery lasts 3-5x longer than lead-acid. A supremely reliable 12V rechargeable battery for RV lithium battery systems and solar battery 12V 300ah setups.
• 【High Capacity for Total Energy Independence】Unlock true off-grid freedom! This powerhouse 12V lithium battery 300Ah (actual 314Ah) delivers a massive 4.01 kWh of energy. Perfect for powering a home backup system, an RV, or critical devices, this deep cycle battery 12V provides consistent, long-lasting power. It's the ultimate 12V RV battery and solar battery solution, offering a lifespan 30 times longer than traditional options.
• 【High Capacity for Total Energy Independence】Unlock true off-grid freedom! This powerhouse 12V lithium battery 300Ah (actual 314Ah) delivers a massive 4.01 kWh of energy. Perfect for powering a home backup system, an RV, or critical devices, this deep cycle battery 12V provides consistent, long-lasting power. It's the ultimate 12V RV battery and solar battery solution, offering a lifespan 30 times longer than traditional options.
• 【Scalable Design for Demanding Applications】Your power, your way. DUMFUME versatile LiFePO4 battery 12V 300Ah（314ah） is designed to grow with your needs. It supports configurations up to 4S4P to build a 51.2V / 64.3 kWh energy system. Ideal for powering appliances over 2000W, it's the perfect upgrade for large solar arrays, off-grid homes, or high-demand RV use—the building block for your ultimate lithium battery 12V 314Ah power system.
• 【5-Year Warranty for Deep Cycle Use】Invest with confidence. Our Dumfume 300Ah (314Ah) lithium battery is backed by a strong 5-year warranty. Engineered specifically as a 300Ah deep cycle battery, it is perfect for renewable energy storage and RV applications. Note: Designed for sustained energy delivery and is NOT for engine starting. Choose the LiFePO4 12.8V 314Ah battery that guarantees performance for your journey toward energy self-sufficiency.
• Battery performance requires temperatures of 5°C or higher. Please verify suitability before purchase. Return shipping for low-temperature charging issues is not covered.