[Oeva-list] A123 batteries

Jon Balgley jon at photodad.com
Fri May 6 09:57:35 PDT 2011


I should phrase this a little differently.

If I configure the pack to have severely limited range, in order to keep
weight/costs down, how do I factor in any extra degradation due to pulling
higher C-rates during hard acceleration?



On Fri, May 6, 2011 at 7:53 AM, Jon Balgley <jon at photodad.com> wrote:

> In a few recent messages, different people praised and commented upon A123
> batteries.  I am hoping to upgrade to A123's, or similar?, when my current
> lead-acid pack dies.
>
> Someone said, re: A123's, "properly sized for range" -- since A123's can
> tolerate much higher C-rates, what does that mean, if I only want limited
> range?  If I design the pack to be much smaller, pull more amps from it, how
> do I estimate how much less lifetime I'll get from them?
>
> It appears that A123 20Ah pouch cells are appearing on the market, too.
>  Anybody around here using them yet?  I know John Wayland is using pouch
> cells from Dow Kokam.
>
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