REFLECTOR: Battery Questions

[Sid Knox]

The Odyssey is not a "gel cell", it is a quite different animal.   If they 
become discharged, they must be bulk-charged properly or they will not fully 
recover.  They usually come with a "maintenance manual" that describes the 
proper charging method (otherwise, visit the web site for instructions).

My understanding is that if you do the recharge properly, they will recover 
with no degradation of capacity or life.

$ 0.02

Sid Knox
Oklahoma

Velocity  173 RG  N199RS
Starduster  N666SK
KR2         N24TC
W7QJQ




----- Original Message ----- 
From: "Hiroo Umeno" <humeno at microsoft.com>
To: <reflector at tvbf.org>
Sent: Saturday, May 26, 2007 12:06 AM
Subject: REFLECTOR: Battery Questions


I have a dual Odyssey 680 setup in my plane with a small avionics backup.

Last time I was up at the hangar working on avionics, I managed to forget to 
turn off the master switch before I left.  I went up today on a beautiful 
Seattle day and found that both batteries are completely drained.

Now, I know the "gel cell" like Odyssey are supposed to be able to handle 
deep cycle better than the regular batteries  but I am thinking going 
completely dead can't be good for it.  I know on a car batteries, once you 
let it go completely dead a few times, they are pretty much "done for".

Is the gel-cell able to handle the punishment I dished out?  Did I damage 
the battery and should expect to replace all of them soon?

Hiroo





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