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| Ev Archive for October 2002 |
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| 1331 messages, last added Tue Oct 22 14:03:22 2002 |
[Date Index][Thread Index]
acceptable temperature range
A Trojan engineer (i think Jim Drizos a couple years ago) told me that the
lowest tolerable temperature is the best to regulate batteries since
longevity is porportional to temperature. He recommended 50F which is where
my charger restart is set to. (Below that temp I have difficulty getting
back home) I also keep the Jeep in the unheated detached garage which helps
ambient.
----- Original Message -----
From: "Victor Tikhonov" <vtikhono@lsil.com>
To: <ev@listproc.sjsu.edu>
Sent: Monday, October 21, 2002 4:22 PM
Subject: Re: Optima batteries - acceptable temperature range
> ethorpe@gric.com wrote:
> >
> > Just reviewing the battery temperature range for Optimas, because if too
hot
> > they vent (lose moisture) and too cold they cannot deliver full
capacity.
> >
> > According to specs:
> > BCI is based on 80 degrees F (26.7 degrees C)
> > BCI = 120 minute at 25a discharge,to 10.5v cut-off
> >
> > Victor's controls try to keep batteries no less than 20 degree C (= 68.0
> > degree F)
>
> Ed,
>
> If you're talking about me, my pack is kept at 30'C (86'F).
>
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