ECO WORTHY 12.8V 280Ah LiFePO4 Lithium Battery, 6000+ Cycles, Built in BMS,Bluetooth & Low Temperature Protection, for Home Backup/RV/Marine/Off Grid Solar

Bluetooth APP Monitoring:ECO-WORTHY 12V 280Ah Smart LiFePO4 Lithium Battery is built-in upgraded smart BMS, accessed Bluetooth 5.1 module, allows you to monitor the battery information in real time through ECO-WORTHY APP. You can read the battery voltage, current, battery capacity and other important information at any time. Bluetooth connection range: no more than 15 meters from the battery Low-Temperature Protection:This 12V lithium battery features a 200A BMS with multiple protections, including low-temperature protection. Charging stops below 19.4°F (-7°C) and resumes above 32°F (0°C), while discharging halts below -4°F (-20°C) to prevent damage, ensuring stability in harsh conditions Advanced Compression Fixture: Our lifepo4 battery feature a high-strength metal frame inside that provides enhanced battery protection, shock stability and controlled compression to prevent expansion, ensuring long-term durability Flexible Expansion: The ECO-WORTHY 12.8V 280Ah lithium battery delivers 3584Wh of energy and supports up to 4 batteries in parallel, providing 1120Ah at 12V — an excellent choice for motorhomes, offering long-lasting power for your journeys. It also supports up to 4 in series, making it ideal for 48V solar power systems Charger Recommendation: For optimal charging, we recommend using the ECO-WORTHY 12V/24V 20A LiFePO4 battery charger (ASIN:B0F21ZDMBJ) with 0V activation function, which will fully charge this 12V 280Ah battery in approximately 14 hours. Alternatively, it can be charged in about 6 hours with a 600W solar panel, or in 14 hours with a 20A DC generator