conversion kit

In automobile engineering, electric vehicle conversion is the replacement of a car's combustion engine and connected components with an electric motor and batteries, to create an all-electric vehicle. Another option is to replace a large combustion engine with an electric motor and a small combustion engine, creating a hybrid electric vehicle or a plug-in hybrid electric vehicle.
The general trend appears to be that ground vehicles will "go electric," and automakers have responded to public demand by producing both hybrid electric vehicles which get 5.2–2.6 l/100 km; 45–90 mpg‑US gasoline, and electric vehicles which get similar or better mileage by mpg equivalent efficiency rating.
In general, commercially-manufactured electric vehicles are inhibited by the limited range per charge of batteries (up to 560 km, 350 miles), battery charge times that are slower than gasoline filling times, apparent greater initial cost over combustion engines, and potentially high service costs for used or worn-out batteries. Electric conversions are often inhibited by either the difficult labor and specialized knowledge involved in a do-it-yourself (DIY) conversion, or the expense of a purchased conversion service with conversion components, often costing US$8-12 thousand. There is a small but steadily growing DIY community for electric conversions.

View More On Wikipedia.org