RE: Optima batteries - acceptable temperature range

[ethorpe@gric.com]

Thanks for the correction Victor.
So, your standard operating temp is 30'C. What would you consider a high
side limit? When might a YT experience thermal runaway? 40'C? 50'C?

-Ed T

-----Original Message-----
From: Victor Tikhonov [mailto:vtikhono@lsil.com]
Sent: Monday, October 21, 2002 1:23 PM
To: ev@listproc.sjsu.edu
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).