CALB cells are LiFePO4. Maximum ~3.6 to 3.8 volts at end of charge.
3.3 volts nominal.
Different variety of li-Ion have different voltages.
Bill D.
At 04:36 PM 2/10/2013, you wrote:
On 2/10/2013 2:30 PM, Peakfoto Digital Photo Still n Video wrote:
I have nineteen cells blue calbs mounted on my ev scooter and
need to know,
but what to go 22 cells. will that many cells damage my 72 volt dc to dc ?
A 72v lead-acid pack has 36 cells, and could get as high as 2.5v per
cell. That would be 90v. So a reasonable-quality DC/DC should be
designed to withstand 90v without problems.
90v with 22 lithium cells would be 4.1v per cell. That's pretty
high, but possible if you don't have a BMS or well-behaved charger.
What is the maximum voltage you see at the end of a charge cycle?
--
Ingenuity gets you through times of no money better than money
will get you through times of no ingenuity. -- Terry Pratchett
--
Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
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