About this item Product Includes: 2 pack 12.8V 200Ah LiFePO4 battery. 2560Wh High Energy & 1280W Load Power -- Engineered with automotive-grade LiFePO4 cells, delivers stable 12V/200Ah output for heavy-duty RV/solar/trolling motor systems, achieving 95% discharge efficiency and 98% energy retention Built-in 200A BMS :Dumfume 12V 200Ah LiFePO4 Battery Integrated smart BMS prevents overcharge/over-discharge/short-circuit, certified for extreme marine/RV environments 15000+ Deep Cycles & 98% Energy Retention Outperforms lead-acid batteries with 15x lifespan (80% capacity after 15000+ cycles at 60% DOD), Dumfume 12V 200Ah LiFePO4 Battery is ideal for daily solar energy storage and off-grid applications Lightweight & Compact Design (30% Lighter) The Weighs of this 12.8V 200Ah LiFePO4 Battery only 41.66lbs with ABS+PC fireproof shell, optimized for easy RV/marine installation and 30% faster heat dissipation Multi-Scenario Compatibility & Parallel Expandability Seamlessly powers RV appliances/solar arrays/trolling motors (up to 48V systems) with