VEVOR 12V 140Ah Dual Purpose LiFePO4 Lithium Battery, 1000 CCA Group 31, Lithium-ion Starter Battery Plus Deep Cycle, Built-in Smart BMS, Car Start-Stop, for Automotive, Trolling Motor, Marine, RV

Dual Purpose Use: This LiFePO4 lithium battery delivers 1000CCA to start vehicle or marine engines. It also provides a 140Ah capacity to power car refrigerators, vehicle air conditioners, trolling motors, fish finders, solar panels, and more
BMS Protection: Equipped with a dynamic BMS, this deep cycle lithium battery provides secure operation with overcharge, over-discharge, overcurrent, short circuit, low/high-temperature protection. It also supports automatic heating in cold conditions
Bluetooth & OTA Support: This car starter battery supports Bluetooth connectivity for real-time app monitoring of capacity, voltage, current, power, cycles, temp, and BMS status. Plus charge/discharge switch and calibration, and OTA access to new features
ERM Function: The lithium car starting battery automatically preserves 10%15% power to ensure reliable engine starts. It helps avoid situations where deep discharge leaves insufficient energy to crank the engine
Battery Size Fitment: This Group 32 lithium marine cranking battery measures 12.99 x 6.77 x 8.66 in (330 x 172 x 220 mm). Please measure your old battery and compare it to ensure compatibility. Any original battery larger than these dimensions will fit