On Thu, May 8, 2014 at 5:22 PM, Jan Steinman via EV <[email protected]> wrote:
> On 2014-05-08, at 17:01, David Nelson wrote:
>
> Seems a bit pedantic to me, but no worries.
>
I don't see how. They are clearly different. It is in the definition.
Or do you say pedantic because if you have two parameters you can
calculate the third? Maybe it is just a disconnect between how a
physicist sees things and an engineer sees them.

>>> What I meant by "fairly constant" is that the terminal voltage changes by 
>>> millivolts as the current through the internal resistance goes from 0 to a 
>>> couple hundred amps. So yea, that change in voltage times the current times 
>>> time is the energy "lost" to heat.
>>
>> You must have some awesome batteries. Mine sag more than by just a few
>> millivolts.
>
> Putting words in my keyboard again. I never said "few" millivolts.
>
I took the implied meaning, but then I could say you are being
pedantic about it. Specifying "few" did narrow things a bit.

> In the SI system of measurement, "millivolts" are less than a volt and more 
> than 999 microvolts. I recon that describes the sag in most high-current EV 
> batteries. (Sorry, my turn to be a pedant.)
>

When did the SI system put multiples of 3 power limits on things? Oh,
right. You are an engineer so like engineering notation. The nominal
voltage of my pack is 64,000mV by the way. :P


-- 
David D. Nelson
http://evalbum.com/1328
http://www.levforum.com
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