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pitts_pilot(at)bellsouth.
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 Posted: Thu Sep 24, 2009 5:58 pm Post subject: Chargers ...... and batteries |
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Which causes me to ask why is everybody putting really expensive
batteries in their planes???
Linn
Miller John wrote:
| Quote: | Been using Battery Tenders on my Odyssey 680s for several years now with
no problems.
It was recommended in Aviation Consumer as well as Light Plane Maintenance.
grumpy
N184JM
do not archive
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msausen
Joined: 25 Oct 2007
Posts: 559
Location: Appleton, WI USA
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| Posted: Fri Sep 25, 2009 6:13 am Post subject: Chargers ...... and batteries |
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A really expensive battery to me would be the A123 batteries that Bill Dube had thought about bringing to our market. The nice thing about a pair of 680's is that you can easily put them on a maintenance cycle where you replace one of them every one or two years during annual and you will probably never have a down aircraft due to a battery problem (leaving the master switch on doesn't count).
AGM's are essentially a deep cycle battery that can put out a lot of amps and also sit for months without losing any charge (again, that always on clock doesn't count). In my case the always on BATT bus is only drawing from one of the two batteries so even if the always on stuff like clock or trickle charge to EFIS internal batteries would happen to kill one of them, the remaining 680 should have enough to get me started. I also have the ability to isolate a battery in an alternator failure to supply nothing but my Lightspeed III.
Swapping one of these batteries every other annual, or even every annual, at $100USD isn't that major of an expense to me and I can always use the old batteries in the lawnmower, computer UPS, car, etc.
Michael
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