[NSRCA-discussion] Falcon F3A batteries follow up

Keith Hoard khoard at gmail.com
Tue Apr 4 13:11:36 AKDT 2006


But just think, you would only have to charge every other season.  . . .

   . . .<snip>. . . I don't htink we want to use that battery to just power
> the servos and receiver only.
>
> Vicente Bortone
>
>
> -------------- Original message --------------
> From: skyjules1 at comcast.net
> Warranty verbage seems to exclude anything of high amperage outside of
> receiver/servo
> loads (i.e. typical pattern plane use). Has anyone been successful in
> warranty negotiating a new
> battery pack that has been used for Hacker, Axi etc. electric motors?
> Jules
>
>
> -------------- Original message --------------
> From: Stuart Chale <schale at optonline.net>
>
> Just a follow up on the Falcon battery discussion.
>
> George sent me some additional info on the batteries and their warranty.
> The warranty is worth looking at.
>
> First his clarification of a statement where he said that their batteries
> are heavier and therefore more robust than TP.
>
> Stuart C.
>
>
>
> As you say, heavier doesn't *necessarily* mean better.  You are correct,
> at least in principle, that newer technology can yield a higher energy/mass
> ratio.  As I am fond of telling people, LiPo's exist in a give and take
> world.  Given the current chemistry remains constant, one can make design
> changes which can swing the pendulum in favor of energy or they swing the
> pendulum in favor of cycle life.  You have probably noticed 20C batteries
> are typically heavier, more expensive, and do not, (in many cases), have a
> favorable cycle per dollar ratio.  At another point in the spectrum is the
> lighter cell which yields relatively high energy but with less weight and
> lower cycle life. The cell design in the F3A's is a combination designed to
> yield high energy and high cycle life.  So, when I say! ! , "robust", I mean
> our cells are a little heavier than some but they should deliver equal or
> superior performance and last longer.  Combined with the zero-delta
> matching, these packs should far outlast "normal" or "lite" packs.
>
>
>
> The warranty on these packs is as follows:
>
>
>
>    *Falcon F3A Pro Series Batteries* are warranted against* *failure,
> under "normal" conditions in typical pattern aircraft use, during the first
> 6 months from date of invoice.  Examples of failures eligible for pack
> replacement include, but are not limited to, manufacturing defects, defects
> in workmanship, failure to achieve  proper cell balance, cell failure,
> inability to maintain proper voltage during discharge, significantly
> diminished mAh capacity, cell/pack swelling not due to misuse. There is no
> limit on the number of cycles during the warr! ! anty period. A failed pack
> will be replaced or repaired free of charge, provided failure is not the
> result of customer abuse. Some examples of abuse include misuse, crash
> related damage, improper charging / discharging, shorting, operation outside
> of upper temperature limits (150 degree F), and mechanical damage. Warranty
> decisions are on a claim-by-claim basis with emphasis on customer
> satisfaction.
>
>
>
>
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>
>


--

Keith Hoard
Collierville, TN
khoard at gmail.com
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