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How Long Will Your Electric Car Battery Last? Science Is On The Case

Green Car Reports -- We all know that battery packs are the biggest Achilles Heel of the electric car, which is why automakers like Nissan and General Motors are working hard to improve the energy density, cost and lifespan of electric vehicle batteries.

But once you've designed a new battery pack, how do you prove its lifespan without waiting year and years?

You’d think that some complex math, along with some basic scientific theory would answer the problem, but life is rarely as predictable as a science lab.

Instead, physicists, chemists, battery firms and automakers are working together to build sophisticated equipment that can give electric car battery packs a lifetime of testing in a few weeks.

In turn, the test equipment could aid the development of cheaper, more energy-dense battery packs for ele


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Submitted Apr 12, 2012 By: Gas_Eyes
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REPLIES (newest first) Post a Reply
GRCummins53
Veteran Author Stockton

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Message Posted: Apr 13, 2012 6:31:36 PM

In an article posted in this forum several weeks ago, one manufacturer was replacing battery packs when they had 80% of their original capacity remaining. What good is a battery when it is spent while having this much capacity left? What good is the car?
Gas_Eyes
Champion Author Dallas

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Message Posted: Apr 13, 2012 10:47:02 AM

In spite of the uncertainty of batteries in hybrids and EV's, the used car price are still relatively good. Especially these days when gas prices are high.
Norm10
Champion Author British Columbia

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Message Posted: Apr 13, 2012 9:25:08 AM

Not long enough!
SycamoreISU
Champion Author Indiana

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Message Posted: Apr 13, 2012 8:59:07 AM

The batteries of electric cars are prohibitively expensive to replace, have a questionable lifespan, and can catch fire, perhaps even blow up. What's the appeal again?
NukeAtComEd
All-Star Author Milwaukee

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Message Posted: Apr 13, 2012 8:43:06 AM

bring down the prices of new batteries as well!!
gandalfthegrey1
Champion Author Houston

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Message Posted: Apr 13, 2012 7:06:10 AM

Every form of refuge has its price.
molebaby96
Champion Author Tallahassee

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Message Posted: Apr 13, 2012 6:39:05 AM

Is the oil companies in control?
Ahking
Champion Author Orange County

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Message Posted: Apr 13, 2012 1:58:44 AM

Wish it describes more details on how it can be done.
gatekeepertwo
Veteran Author Wilmington

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Message Posted: Apr 13, 2012 1:06:31 AM

we need better batteries but we need to make them in America.
52MPG
Champion Author Dayton

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Message Posted: Apr 13, 2012 12:45:51 AM

A on board magnetic generator could easily replace batteries.
Nicoalbum
Champion Author Ottawa

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Message Posted: Apr 13, 2012 12:20:58 AM

Those batteries are short-lived.
amerk73
Champion Author Dallas

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Message Posted: Apr 12, 2012 11:59:39 PM

how you use the batery
davenles
Champion Author Texas

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Message Posted: Apr 12, 2012 11:19:54 PM

One more drawback of these vehicles.
jjjleblanc
Champion Author Rochester

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Message Posted: Apr 12, 2012 10:55:37 PM

Great question.
car253
Champion Author Ohio

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Message Posted: Apr 12, 2012 10:52:58 PM

EV's are not ready for prime time.
MAJB
Veteran Author Indianapolis

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Message Posted: Apr 12, 2012 10:24:16 PM

This is what is keeping me from buying an EV. Plus, what happen to al these used up batteries...
36_ACRES_4_SALE
All-Star Author Appleton

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Message Posted: Apr 12, 2012 10:05:19 PM

:p
CVA19
Champion Author Salem

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Message Posted: Apr 12, 2012 9:50:36 PM

There are so many factors that affect the useable life of batteries. They will never be able to come up with anything more than a WAG.
TomT2Lee
Champion Author Cincinnati

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Message Posted: Apr 12, 2012 9:47:16 PM

Good point GenoAR. EVs have big problems not really being addressed.
GenoAR
Veteran Author Arkansas

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Message Posted: Apr 12, 2012 9:22:35 PM

If you ever have to buy new batterys' for your electric car you will lose any savings that was realised by gas savings, and then some.
If electric cars are ever to sell in large numbers
the automobile manufacturers will have to offer a 10 year or maybe lifetime, replacement policy.
Don't hold your breadth for this.
PDQBlues
Champion Author San Diego

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Message Posted: Apr 12, 2012 8:49:51 PM

dbecks44: We can pretty much just agree on the answer "not long enough" and call it good, right?

The limiting factor for an all-electric car will be the battery. It's heavy, expensive and made with toxic chemicals. Develop the technology to make the battery unnecessary, and electric cars can be a viable alternative.
MOREDLEG
Champion Author Missouri

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Message Posted: Apr 12, 2012 8:47:51 PM

Who Cares. If Green Car Reports the truth, I would like to see the cost per mile comparison. Oh dont forget the incentives, oh and the subsidies. Now that would be interesting
dbecks44
Champion Author Michigan

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Message Posted: Apr 12, 2012 8:39:44 PM

We can pretty much just agree on the answer "not long enough" and call it good, right?
TruthMatters
Champion Author New Jersey

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Message Posted: Apr 12, 2012 8:37:49 PM

So far mine has lasted 7 years and is still going strong!
RRBC
Champion Author Victoria

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Message Posted: Apr 12, 2012 8:35:55 PM

more research dollars
OHMS
Champion Author Orange County

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Message Posted: Apr 12, 2012 8:25:02 PM

n turn, those buying a used electric car will be able to better evaluate the true lifespan of its battery pack before handing over any money
ExplorerWA
Champion Author Washington

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Message Posted: Apr 12, 2012 8:14:53 PM

I won't be buying one, so won't give the battery a second thought.
buckets42
Champion Author New Jersey

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Message Posted: Apr 12, 2012 8:00:37 PM

Mine currently lasts the life of the car basically.
bandannaman
Champion Author New Jersey

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Message Posted: Apr 12, 2012 7:56:32 PM

Car battery (singular) or car batteries (plural)?
humblepie
Champion Author Toledo

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Message Posted: Apr 12, 2012 7:40:42 PM

forever, im not buying that crap
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