72V High Power Rechargeable Li-ion Battery Pack
For 72V high-power electric motorcycles, heavy-duty three-wheel electric vehicles and off-road electric mobility scooters, built-in cells are always the core foundation of battery packs. The power output, actual cruising range, service life and high-temperature operation safety of the whole battery pack are all directly determined by individual cells. Most low-cost 72V high-power lithium batteries on the market adopt recycled cells, refurbished cells or low-grade B-class cells. Such cells feature large internal resistance, inconsistent capacity and insufficient discharge rate. Although their nominal voltage meets standard requirements, they are prone to weak startup power, sharp voltage drop at high speed, sudden cruising range attenuation and heating or bulging failures after installation. Under heavy-duty working conditions with continuous high-current discharge, low-quality cells will age rapidly, and even cause severe safety hazards such as thermal runaway and spontaneous combust