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BrianG · 12.15.2005, 09:23 PM

OK, so as long as the packs have the same voltages (or very close) when they start, they will discharge within .05v of each other so any current flow between the paralleled batteries is negligible.

I know cells of different capacities shouldn't be used together, just like cells at different charge levels shouldn't either - I was just pointing out the fact that if you have several large capacity cells in series and one low capacity cell, the whole chain will only have the capacity of the smallest cell. I think everyone knows that for best/safest results, all cells in series or parallel should be of the same type, voltage rating, capacity, and charge level.

Cool about the 5% discount! That will come in handy when I get the rest of my BL stuff!!! $25 off a $500 order should cover shipping (or close to it). Is there an expiration date in which to use this discount?

I still haven't read of any examples (other than R/C use) of paralleled batteries. I don't really think dumptrucks, RVs, campers, etc use paralleled batteries without an isolator, so that doesn't count. :)

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	12.15.2005, 09:23 PM OK, so as long as the packs have the same voltages (or very close) when they start, they will discharge within .05v of each other so any current flow between the paralleled batteries is negligible. I know cells of different capacities shouldn't be used together, just like cells at different charge levels shouldn't either - I was just pointing out the fact that if you have several large capacity cells in series and one low capacity cell, the whole chain will only have the capacity of the smallest cell. I think everyone knows that for best/safest results, all cells in series or parallel should be of the same type, voltage rating, capacity, and charge level. Cool about the 5% discount! That will come in handy when I get the rest of my BL stuff!!! $25 off a $500 order should cover shipping (or close to it). Is there an expiration date in which to use this discount? I still haven't read of any examples (other than R/C use) of paralleled batteries. I don't really think dumptrucks, RVs, campers, etc use paralleled batteries without an isolator, so that doesn't count. :)