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Old 06-12-2012, 09:53 AM
CHARGED EVs Magazine CHARGED EVs Magazine is offline
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Default A123 Systems returns from death’s door with breakthrough new battery technology

Batteries made with A123’s new technology should be capable of operating at extreme temperatures without requiring thermal management... Newswire >
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Old 06-12-2012, 12:20 PM
somanywelps somanywelps is offline
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Default Re: A123 Systems returns from death’s door with breakthrough new battery technology

Alright... how about density?
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Old 06-12-2012, 02:02 PM
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Default Re: A123 Systems returns from death’s door with breakthrough new battery technology

Oh goodie another press release. They must need money to stay afloat.
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Old 06-12-2012, 07:37 PM
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Default Re: A123 Systems returns from death’s door with breakthrough new battery technology

Didn't know that 45 degree C was considered extreme.

Considering we've had a day 42 in the shade where I live. Better not leave any EV's sitting in the sun on a "extreme" day.

Interesting was that testing was full cycle. 100% DOD > 90% capacity over 2000 cycles.

That's 20% more range (or energy density) than babying them at 80% DOD.
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Old 06-12-2012, 07:52 PM
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Ziggythewiz Ziggythewiz is offline
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Default Re: A123 Systems returns from death’s door with breakthrough new battery technology

Most tests are for 100% DOD, but why do that when you can do 70% and get 3000 or 5000 cycles?
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Last edited by Ziggythewiz; 06-13-2012 at 05:59 AM. Reason: typo 80->70
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Old 06-13-2012, 05:12 AM
drgrieve drgrieve is offline
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Default Re: A123 Systems returns from death’s door with breakthrough new battery technology

Well say you purchase a pack that does 80 miles @ 80% DOD. It lasts 3000 cycles to 90%.

This is 228,000 miles.

Same pack but now you run it at 100% DOD and get 96 miles. 90% at 2000 cycles.

This is 182,000 miles. At 15000 miles a year = > 12 years.

I would hope that in 12 years we would have better packs to choose from. In the meantime I can go almost 20 miles further per charge for no extra weight or cost.

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Old 06-12-2012, 07:41 PM
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Default Re: A123 Systems returns from death’s door with breakthrough new battery technology

I read in another article that it was 160Watts Hours per Kilogram.
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