[NSRCA-discussion] battery question

[chris moon]

FMA Cellpro 10S

http://www.fmadirect.com/new_applications/10s_charger.htm



It charges through the balance taps only up to 4amps,  above that,  you
need to charge through the taps and the main power cable from the
battery.



I like that you can read the individual cell's internal resistance as a
gauge of each cell's "quality" or measure of how much it has degraded
over time.



Chris



mike mueller wrote:

  
    
      
         What was the brand of chargers at the Nats whose
balancer worked as a power adder and not one like the TP 210 that works
by drawing the current out to balance thus getting hot? Mike

        

--- On Wed, 7/30/08, brian_w_young 
wrote:

        From:
brian_w_young 

Subject: Re: [NSRCA-discussion] battery question

To: "General pattern discussion" 

Date: Wednesday, July 30, 2008, 12:01 PM

          

          
          I
have a set of matched packs, what i notice at first is they charge well
and the balancer doesnt get to hot, later in their life the balancer
works more. So my assumption is they go out of balance more as they
age. 

          

          
          From:
          Michael
Ramsey 

          Sent:
          Wednesday,
July 30, 2008 8:23 AM

          To: 'General
pattern discussion' 

          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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