[NSRCA-discussion] battery question

[Verne Koester]

MessageHi Mike,
The FlitePower F3A 5350 packs are two, 5-cell packs that are matched to each other. I know that FlitePower makes a big deal about keeping each 5-cell pack with its mate. I've kept track by numbering the packs and keeping the number 1 pair together, the number 2 pair together, and so on. I've been using them since the start of this season with good power and consistency. My understanding is that the matching results in a pair of packs that balance well to each other resulting in less work for the balancer, particularly when charged in series as a 10S pack. That's been my experience so far with about 40 cycles on each pair of packs. I have 4 pairs. Three of those were purchased at the start of the season. The fourth set was used by a friend briefly last year and found its way into my "fuel box". All four pairs consistently put out the same power. Hope this helps.

Verne Koester


  ----- Original Message ----- 
  From: Michael Ramsey 
  To: 'General pattern discussion' 
  Sent: Wednesday, July 30, 2008 9:23 AM
  Subject: Re: [NSRCA-discussion] battery question


  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 Chale
    Sent: Wednesday, July 30, 2008 9:14 AM
    To: General pattern discussion
    Subject: Re: [NSRCA-discussion] battery question


    Yes :)


    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.

    Stuart

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

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