[NSRCA-discussion] battery question

[Anthony Romano]

Do the warmer cells in the center of the pack go first?

From: cjm767driver at hotmail.comTo: milehipilot at gmail.com; nsrca-discussion at lists.nsrca.orgDate: Wed, 30 Jul 2008 11:48:09 -0500Subject: Re: [NSRCA-discussion] battery question


I think matched is only as good as the quality of the cells themselves.  You can have a pack with matched inferior cells.  They are all equally bad but still matched.  That said, every pack that I have seen has cells that age differently over time and no matter how matched the cells are to start with, they all degrade differently and are soon no longer matched.  This applies to packs that are being discharged at high rates like out pattern packs.  Cells that are treated lightly like our 2S lipo packs used for the receivers seem to stay in balance quite well over time.ChrisMichael Ramsey wrote: 

A related question: Is it true that the cells are "matched" in a pack? If so, what advantage would that have?

Thanks, Michael Ramsey

-----Original Message-----From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Stuart ChaleSent: Wednesday, July 30, 2008 9:14 AMTo: General pattern discussionSubject: Re: [NSRCA-discussion] battery questionYes :)If a cell puffs it is easier to replace in a 5 cell pack. Also cheaper to replace a 5 cell pack if a cell goes pre-maturely and you do not like to replace cells. You might find use for a 5 cell pack by itself. Smaller plane, Heli etc. The downside is that you have to add a little weight for a Y connector to connect both packs. A 10S pack is a "little" easier to secure in the plane. I will probably only buy 5 cell packs from now on. Currently trying out the True-RC packs.StuartAnthony Romano wrote: 


Other than cooling is there any down side to a 10s brick as apposed to two 5s packs?

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