https://www.maximizemarketresearch.com/market-report/hybrid-ev-conversion-kit-market/184174/ A Hybrid Electric Vehicle (HEV) conversion kit is a system that is installed in a conventional vehicle to transform it into a hybrid electric vehicle, which uses both an internal combustion engine and an electric motor to power the vehicle. The conversion kit typically includes an electric motor, battery pack, power electronics, and control systems. The electric motor assists the engine during acceleration and provides regenerative braking to recharge the battery pack.