Hybrid car that run on petrol and battery powers are under intensive development. Nickel-metal-hydride batteries are being used in some hybrid cars, while Mercedes has recently announced the use of lithium-ion batteries on its S400 Blue Hybrid which all be connected to a 20 horse power electric motor to provide additional power to the main 3.5 liter V6 engine, thereby improving its performance to that of V8 engine, and allowing the car to achieve a fuel economy of 30 miles per gallon.
The engine is switched off when the car slows to speeds below 9 mph, and the electric motor restarts the engine at higher speeds. Some other manufacturers such as BMW, Mazda and Porsche are also using this engine Off-On method to improve the fuel economy.
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Good car batteries can help a lot in maintaining your car performance and batteries you are using should be good quality car batteries.
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