Mailing List flyrotary@lancaironline.net Message #15462
From: Russell Duffy <13brv3@bellsouth.net>
Subject: Battery load test
Date: Wed, 19 Jan 2005 11:11:21 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Greetings,

With all this talk of battery load testers, I have to admit that I'm not
sure what good they will do us.  Is this just a standard test where you put
a heavy load on the battery for a few seconds to see what the voltage drops
to?  I think I'd be far more interested in figuring out how much current my
system draws in "alt failed" mode, and coming up with a tester that can be
set for that load, and told to time it from start to when the voltage
reaches some set point like 9V (if that's what Tracy's EC-2 pukes at).
Anyone know of a tester that will do that?  PS- Where's the cheapest place to get the Odyssey batteries these days? I
got the last one from Spruce, and will probably go that route again unless
someone else is way cheaper.  My decision to use the single rotor for the
Slingshot kind messed up my battery scheme.  I was planning to buy a new
battery for the RV, then move my old one to the SS, because it wasn't as
critical.  Now the SS needs electricity as much as the RV does, though it
still may not be as critical.  Cheers,
Rusty (just ordered 4 gallons of NPG-R, along with a 0psi and 7psi cap)



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