Is there an international standard for size, form factor, etc. for electric car batteries?

best batteries for electric cars image

Jake

I am wondering if a standards document has been established for electric car batteries. Are there any working groups, ISO, etc., currently working on this? It seems to me that if electric cars are to get any traction in the market place, the batteries that power them need to be inter-changeable between different makes and models.

Thanks.

Answer
Not yet. Even batteries for your existing car are not perfectly standardized.

It makes no sense to specify a battery size and shape if in 5 years batteries can be 1/4 the size and weight. Or maybe we will switch from using batteries entirely to either ultra capacitors or powering directly from roadways. At this point, even the charging port is not standardized internationally. In the US we do have a standard charging port configuration but where it is located on a vehicle is still subject to debate. (Europeans have another and the idea of induction charging (EV1) has not completely died.)

Standardized batteries would be one requirement for any system that swaps the batteries out instead of having them charged in the vehicle. It may be that one company will come to dominate the market and others will conform in order to make replacement parts. An industry standard could evolve in this way without regulation.

Electric car technology is very new with an almost a 200 year history.

Is it cumbersome or expensive to charge the battery of an electric car?

webstorage

I'm entertaining the idea of buying a fully electric car. Is it cumbersome to charge the battery? Expensive?

Answer
It's very easy and cheap. Electric vehicles plug into your normal wall outlet - or for fast charging, you can have a 220v outlet installed.
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Electricity is way cheaper than gasoline. I did a comparison of fuel costs this week: we drive 1300 miles per month. In our 18mpg car at $3.10/gallon, that costs us $224 per month. That same 1300 miles costs $8 in an electric vehicle. Yes! EIGHT DOLLARS! (4 miles per kilowatt-hour, and we have an 'EV charging rate' for electric cars here of 2.5 cents per kwh.) The fuel savings, plus EV tax breaks will almost cover the monthly payments on an electric car, like this one below:
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http://www.milesautomotive.com/products_xs200.html
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This car costs $28500, and gets 200 miles per charge.
How long do the batteries last? Well LI-ION batteries are good for 500 charges. At 200 miles per charge, that's 100,000 miles.

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