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Old 02-25-2013, 10:30 AM   #9
JohnnieB
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Default Re: LiFePo4 conversion

Quote:
Originally Posted by Oneunder View Post
What is the best way to measure DOD? I was quoted for both 100ah and 200ah but since there was no price break for the 200ah, I thought I might get the 100ah first and test the run time.
That is a question that an army of scientist and engineers working in the electric vehicle industry have been trying to answer for years and have yet to succeed.

To name a few of the issues:
Different Lithium chemistry has different volts per cell and different discharge curves.
In Lithium batteries, collectively, the volts per cell don't vary very much between nearly fully and nearly fully discharged.
The discharge curves change as a Lithium battery ages.

There are more issues, but what I am trying to say is that it isn't an easy task.
Plug "SoC Lithium Battery" into your web browser and read the articles on the subject and you'll find quite a few paper written about the complexities.
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