|
|
Hi Ralf,
Those look like Odyssey's. My experience with Odysseys is that they are picky about charging voltages and when they fail they tend to fail suddenly. I would suggest going to the Odyssey website and finding their detailed charging instructions, then take the batteries out of the plane and charge as directed, one at a time. (You may need to buy a new charger) See how the voltages look and then make a decision.
I think if I had a single bus electrical system, I might consider reverting to a flooded aircraft battery.
I don't really have a scientific justification for that. ...Just that in 13 years of aircraft ownership I have toasted zero flooded batteries and 2 pair of Odyssey's.
Colyn
On Oct 24, 2013, at 9:04 AM, <bronnenmeier@GROBSYSTEMS.COM> <bronnenmeier@GROBSYSTEMS.COM> wrote:
Dear subscribers,
I got a 2x12V=24V battery stack on the firewall behind the oil cooler -
see picture
I started flying the plane in May2011 with about 350hrs since then.
I bought the batteries probably early 2010 and used them during the
start-up process of the electrical systems in the plane.
Last week I thought the first crank revolution during starting felt kind
of weak - what kind of life can I expect out of them?
Does it just get weaker and don't start the engine anymore or would it
more likely die sudden at night in IMC?
I don't have an electrical back up but vacuum instruments and a
flashlight in the cockpit.
Thanks for your input
Ralf
-----Original Message-----
From: Chris Zavatston [mailto:chris_zavatson@yahoo.com]
Sent: Tuesday, October 22, 2013 7:54 AM
To: lml@lancaironline.net
Subject: Re: [LML] Re: Odyssey PC680 Batteries on Firewall -- Cool
Enough?
Why was it smoking? Overcharging?
Sent from my spiffy iPhone
On Oct 21, 2013, at 5:02 PM, Colyn Case <colyncase@earthlink.net> wrote:
> I haven't been a fan of batteries behind the firewall since my friend
had his battery start smoking IMC in a Cessna 210. He made it but it
wasn't pretty.
>
> On Oct 21, 2013, at 3:58 PM, Steve Colwell wrote:
>
> Ditto.. put the battery or batteries behind the seat too if the CG (or
> your
> A/C) will allow. Our CG with Pump and 3, 20 amp Panasonic Batteries
> behind the seats (Hartzell 3 blade) is near the fwd. limit with
> Claudette solo, no bags and minimum fuel.
>
> Steve Colwell Legacy 550 RG
>
>
> Move your hydraulic pump from its current location.
> Create a small bulkhead and put the pump directly behind your seat.
> The reasons are too numerous to list!
> Don't even think twice about making this change.
> Equally important, locate your pump breaker within easy reach on your
panel.
>
> Angier Ames
> N4ZQ
> 69hrs
>
> --
> For archives and unsub
> http://mail.lancaironline.net:81/lists/lml/List.html
>
>
> --
> For archives and unsub
> http://mail.lancaironline.net:81/lists/lml/List.html
>
>
> --
> For archives and unsub
> http://mail.lancaironline.net:81/lists/lml/List.html
<Picture 419 (Small).jpg>--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html
|
|