Battery electric multiple unit

（重定向自Accumulator car）

Railcar no. 517 008 of the German national railway, DB

Test Electrostar Train converted to run on batteries and overhead wires

A battery electric multiple unit, battery electric railcar or accumulator railcar is an electrically driven multiple unit or railcar whose energy is derived from rechargeable batteries that drive its traction motors.

The main advantage of these vehicles is their clean, quiet operation. They do not use fossil fuels like coal or diesel fuel, emit no exhaust gases and do not require the railway to have expensive infrastructure like electric ground rails or overhead catenary. On the down side is the weight of the batteries, which raises the vehicle weight, and their range before recharging of between 300 and 600 kilometres. Battery electric units have a higher purchase price and running cost than petrol or diesel railcars and need a network of charging stations along the routes they work.

单词	Accumulator car
释义	Accumulator car 英语百科 Battery electric multiple unit （重定向自Accumulator car） A battery electric multiple unit, battery electric railcar or accumulator railcar is an electrically driven multiple unit or railcar whose energy is derived from rechargeable batteries that drive its traction motors. The main advantage of these vehicles is their clean, quiet operation. They do not use fossil fuels like coal or diesel fuel, emit no exhaust gases and do not require the railway to have expensive infrastructure like electric ground rails or overhead catenary. On the down side is the weight of the batteries, which raises the vehicle weight, and their range before recharging of between 300 and 600 kilometres. Battery electric units have a higher purchase price and running cost than petrol or diesel railcars and need a network of charging stations along the routes they work.
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