E-meter [RE-wrenches]

[Steve Bell]

Hi Travis,
 Here is some info about Concorde batteries. First, Kim @ Dankoff (Hi Kim)
is correct that there is no reasonable current limit while charging the
Concorde, a C/1 charge rate is acceptable. But remember that you must have
temp comp at this type of charge rate to prevent any possible thermal
runaway.

As to Peukert's Exponent, I calculated it for the size batteries I typically
install in large systems. Here is the data:

PVX-12255 with a typical discharge rate of C/50 or longer, I use 1.10

PVX-12210 with typical rate of C/20 to C/50, use 1.18
PVX-12210 with a typical rate of C/50 or longer, use 1.16

I believe the smaller sized batteries will have slightly larger numbers for
Peukert's Exponent but I have not taken the time to calculate them. If you
have a specific battery size/discharge rate configuration, I would be glad
to calculate the number, time permitting.

SUNcerely,
Steve Bell
Technical Support
SunWize Technologies
sebpv at stelle.net
----- Original Message -----
From: "Travis Creswell, Ozark Solar" <ozsolar at ipa.net>
To: <RE-wrenches at topica.com>
Sent: Wednesday, October 18, 2000 09:44 AM
Subject: Re: E-meter [RE-wrenches]
> What about adjusting Peukert's Exponent.  I am using Concordes (AGM's) and
I
> don't expect to ever go over a C/20 discharge rate except for very short
> periods so I am thinking it is not important.
>
> Travis Creswell


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