12.8V 260AH 3328Wh LiFePO4 4500+ Deep Cycle Rechargeable Lithium Battery 3328Wh -Built With Smart BMS Various kinds of green, non-toxic and non-polluting raw materials. Long lifespan (4500-10000 cycles, lead-acid is ~400). Lightweight-save 60% weight -Charging speed increased by 6 times. Reduce the total life cycle cost. No heavy metals or acids; environmentally friendly. Maintenance-free. Internal BMS; higher reliability. No memory effect. Less affected by high temperature. Can be installed in any direction. Connect Bluetooth to view battery information Battery automatic heating function in low temperature environment