Just for info, here is a good example of how and how not to wire up
batteries for balanced amperage draw
http://www.smartgauge.co.uk/batt_con.html
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Northern Arizona Wind & Sun - Electricity From The Sun Since 1979
Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
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----- Original Message -----
From: "Doug Wells" <[email protected]>
To: "RE-wrenches" <[email protected]>
Sent: Saturday, February 20, 2010 7:15 AM
Subject: Re: [RE-wrenches] single string of batts: must the interconnects
beinverter size cables?
I have always used 4/0 through out the bank.
I guess that I have had to replace to many dead batteries at this point.
If you are under sizing the parallel strings, what happens when a cell
fails? or 2 cells fail.
Now all the current would be carried by one string.
If you are running equal lengths to a buss bar, it might make sense to
put a current limiting fuse on each parallel run before the bus.
However, this would pretty much negate any money save on downsizing the
copper.
So what is really gained?
Doug Wells
The Solar Specialists
Morrisville, VT 05661
(p) 802-223-7014
(c) 802-498-5856
www.thesolarspecialists.com
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