It depends on the capacity of the battery pack the measurement is measured in kilowatts per hour just like how you would receive from the electric companies.
Additional answer
If you think about it, the question is much like one that said 'how many gallons would a petrol car need at a refill?' How big is the tank and how empty is it when the refill starts?
Some hybrid cars have just as much power as regular cars. They use gasoline for power when it is needed, or the electric component can produce enough power.
One of the greatest reasons to invest in electric vehicles is for their reliability. An electric vehicle has a motor that is much more reliable than a conventional car. There is a misconception that electric cars will simply die out on the road. This is a completely unfounded misconception. The truth is that electric cars can run for up to 600 miles without requiring a battery recharge or any gasoline.
There is a lot of money to be saved through the use of all electric cars. These cars can get their fuel from a whole lot of different venues, making them much nicer on your wallet. After all, you could conceivably build your own solar array or wind turbine to power all electric cars, so the power that is put into your hands by purchasing one of these cars is immense.
The lack of a place to plug in an electric car battery, for people who live in apartment buildings, or those who drive farther than a round trip to their home and garage (with outlet), is one of the big problems with electric cars. Unless there are places to plug in an electric car and recharge the batteries (much like the gas stations found throughout the world), electric cars will not have much of an impact. There needs to be a great many recharging places built, where people who buy an electric car can recharge their car's batteries, or the electric car will never be a big seller. It is probably true that the average person only drives about 50 miles a day, shopping, going to school, and/or commuting. It is also true that without a lot of recharging stations, people will not buy an electric car if the only place they can recharge the battery is at their house with an electric outlet they can plug into. The lack of recharging stations for the average person to plug their electric car into could bring an end to any hope that the electric car can wean the USA (or other countries) from imported fossil fuel energy.
No, the hybrid cars do not use as much gas as a regular car. Electric cars use a number of batteries to store usable electricity to cut the need of gas to power cars by a significant fraction.
Although the technology is not widely adopted yet, solar stations have been developed that can power electric cars similarly to a gas station - and in a much more environmentally-friendly way. These stations are beginning to appear across developed countries such as the United States and the United Kingdom.
Electric cars have a slow acceleration rate, and hybrids have much less power than non hybrids of the same make.
No, the batteries in an electric car are much different. Normal automotive batteries are lead acid batteries. Most electric cars use Lithium-Ion batteries.
A regular car will have a much longer lifespan unless you are willing to replace batteries in your electric car.
Electric plug-in vehicles are similar to conventional hybrid cars. Both cars use a gasoline engine and an electric engine. Plug-in vehicles have larger batteries and can be recharged using common household electricity. They are driven in an all electric mode during local travel as much as 40 miles without any gas. Once the battery is depleted, the small gasoline engine is used to recharge the batteries as the car moves until plugged up again.
An electric car doesn't go very fast and are usually small, Gas powered cars have much more torque and speed. Some newer cars run on both so when they are going slow they run on electricity but when they are going fast they run on gas. These are not electric cars though as the fuel used is gas to create the electric power. To answer your question, gas cars are far better because they can go further then 20 miles and are legal on our roads. There are no legal electric cars commercially built.and do not exist.
Yes but not by much