Kent, At 12:34 PM 1/19/2010, you wrote:
In the tests performed by Dennis Doerffel and Suleiman Abu Sharkh it is was in the five to ten percent range.
In the first Excel spreadsheet, posted by Julie Haugh, the loss rates seem a lot higher than five to ten percent. Using 220 AH battery, for example, I used a 50 amp discharge rate. The result was that there would be about 140 AH available. That would amount to a 37% loss of capacity.
Is it your thinking that this high result is due to the low terminal voltage at that point, and that the remaining AH would be available after the battery terminal voltage had a chance to recover? Is the attached spreadsheet just incorrect?
Thanks, Drake Chamberlin Athens Electric OH License 44810 CO License 3773 NABCEP TM Certified PV Installer Office - 740-448-7328 Mobile - 740-856-9648
peukert1.xls
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