[NSRCA-discussion] Falcon F3A batteries follow up

Stuart Chale schale at optonline.net
Tue Apr 4 09:33:05 AKDT 2006


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 warranty 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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