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Old 09-11-2010 | 05:27 AM
  #18  
airbusdrvr
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Joined: Nov 2005
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From: New Port Richey, FL
Default RE: retirement time


ORIGINAL: retransit

You're right, someone will disagree, me.

If you have a good preventive maintenance plan in effect, you will not have any trouble with charging issues. I keep a log of all Tx and Rx batteries in my aircraft and note the peak voltage at the end of a charge. I use a couple of Triton chargers which allows me to access that info. By doing this, I can see when a pack starts to deteriorate to a lower charge level. If it is a Nicd I will perform a discharge under load to see how many minutes it will last, down to 1.1 volt per cell. If unsatisfactory, I scrap the pack after an effort to cycle that does not bring the pack back to a comfortable level.

It may seem like a lot of trouble, but it saves aircraft. I have enough trouble with dumb thumbs without adding dead batteries to it. You should also have a meter that produces a load for checking your batteries at the field before flying. Anything suspect should keep you grounded.

Bob
retransit, your method works great and is reliable. However, most fliers are not as dedicated to battery maintenance. I totally agree that a program like you use will get several more years from most battery packs