Is there a way to create an electric car that runs and recharges itself using 2 batteries?

Question

I was wondering if an electric car could be created with 2 batteries so that while the car is operating using battery 1 it is charging battery 2. At some recharge point the car's computer would automatically switch to battery 2 and start recharging battery 1. Thus eliminating the need to stop driving and recharge the car.

Answer 1

I would suggest you watch the movie Forest Gump.

Pay attention when he buys the shrimp boat.

Answer 2

This is sort of a perpetual motion machine.

If battery #1 is operating the car, then what is charging battery #2?   "The car" really isn't an energy source.   And all the energy in the car is coming from ... energy stored one of these batteries.

A battery is an energy STORAGE device.  Without an actual FUEL or other SOURCE of energy, your car won't run.

Using a backup energy storage device to recharge your energy storage device just doens't make much sense.  You can use electricity to charge your batteries - but eventually they will run out (even if, as with a hybrid, you recover as much braking energy as possible).    You'd be much better off just putting in a bigger battery.

I'm afraid I've not done a great job of explaining this.  Perhaps someone else can do a better job.  

Sorry.

Answer 3

Look up "perpetual motion" that should answer your question.

Answer 4

U need to go back to school as u missed something. U can never get as much out as u put in.

    It takes about 5 hp to drive a charger. There is a loss of about 40% each time u transfer from Electrical to mechanical.

   It will not work.

Answer 5

thanks

Answer 6

The reason this wouldn't work is that systems like regenerative braking don't create energy, they just re-route a fraction of the energy normally lost to heat during braking back to the battery.  The energy for operating a hybrid comes from the gasoline.  It just uses that energy more efficiently than a non-hybrid.

So in your theoretical car, you use up the energy stored in half the batteries, then switch to the other half.  You use the regenerative braking system to recharge the first half of batteries, but that energy is only a small fraction that had been stored in the second half of batteries.  So by the time your second half of batteries has discharged, the first half of batteries has only been recharged a little bit.

So basically this is the exact same system as a hybrid currently uses.  The regenerative braking system recharges the batteries as much as possible.  You don't need a second set of batteries to accomplish this.

Answer 7

no.

what you're asking is, "can i create energy".

but you're looking at something like using 2 kilowatt hours to run your car, and getting 2 kilowatt hours back to charge the other battery.

it does not work.

look at the stats for the toyota Prius.

city driving mpg is higher than freeway.

that's because running at 65 mph for a mile takes more energy than running at 30 mph.  it's just harder to push that much air out of the way that fast.

A BETTER WAY TO LOOK AT THIS IS, suppose you had 2 wagons, each with a 100 lb block inside.

maybe you have several of them.

what you'd like to do is pull 1 up the hill, and then have it pull the next one up the hill.

you can pull one up the hill, and then attach a rope and pully and let it down while it pulls the 2nd one up.

you can't have it pull 2 up the hill, that doesn't work.

after you've pulled one up, unless you put more energy into the system, you can't have more than 1 on top of the hill at any time.

Answer 8

You could run on one battery using the inertia to charge it

to a point but in the end you would find yourself charging it up.

Two batteries would just last twice as long and again you would have to charge them up in the end.

Ford has a similar car that uses a hydrogen cell that converts

to electricity, but there again you have to fill a cell.

Inertia used to charge a system may prolong charging intervals but depletion of the battery is always going to happen whe the vehicle is used.

Answer 9

You still result in a net loss of energy. However, there are cars in production that are remarkably efficient and 100% electric. Check out Tesla Motors.