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7730Re: [solectria_ev] Lithium voltage sag

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  • d. Bouton Baldridge
    Dec 6, 2011
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      Hi Rick
      I am guessing that you were including me; anyway a rough figure is $1.20/ Amphour, so if you decide what size cell, 40,60,...100 Amphour multiply $ 1.2 times the Amphour times the number of  cells which in your case would be 48 for a 160v pack. You could probably go higher than 48 cells if you wanted. Mine was a 144v pack and I went to 160v but my controller will not let me go any higher.

      From: Rick <k1ykz7@...>
      To: "solectria_ev@yahoogroups.com" <solectria_ev@yahoogroups.com>
      Sent: Tuesday, December 6, 2011 12:20 AM
      Subject: Re: [solectria_ev] Lithium voltage sag

      Mike, I am thinking about a lithium conversion for my 1996 force. It is a 156 volt system. Can you give me a ballpark on costs and range for your conversion? Real rough is fine.

      Sent from my iPhone

      On Dec 5, 2011, at 4:09 PM, "d. Bouton Baldridge" <cfrkeepr@...> wrote:

      > Hi Mike,
      > Since going on three years with my 48 40Ah cells in my '92' Force I can say that when the temperature is above 70 degrees there is no noticeable sag especially with the loss of weight from the Pb. But since price was a major concern when I bought them, if I bought them today I'd probably go bigger just because of the termperature differential and the associated sag otherwise I don't really need the range either. So I would suggest you go with what you can afford.
      > Bouty
      > ________________________________
      > From: ldr214 <replytome@...>
      > To: solectria_ev@yahoogroups.com
      > Sent: Monday, December 5, 2011 3:38 PM
      > Subject: [solectria_ev] Lithium voltage sag
      > I still haven't put lithium's in the 97 Force. Partly as I can't decide what size AH cells to use. Forgetting somewhat the bigger is better mantra I was wondering what kind of voltage sag others are seeing on their lithium's in the ac powered Force or E10's.
      > I really don't need a lot of range. Cells in the 60-100 AH range are all more than adequate for my wattage requirements. 52 60 or 70 AH cells seem to work on paper if the voltage sag isn't significant. Even 40 AH cells would cover my range needs but I think the sag might become a issue.
      > Any real world information appreciated?
      > Mike R
      > 97 Force
      > [Non-text portions of this message have been removed]

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