Digest for RE-wrenches at topica.com, issue 2286 [RE-wrenches]

[Windy Dankoff]

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Walt,

You should be perfectly OK doing what you propose. In fact, that's  
the way most of us prefer to do it now. I believe that you should NOT  
connect your parallels at the battery terminals if you don't have to.  
It's best to avoid stacking lugs at batteries so you have less metal  
junctions to give opportunities to possible corrosion.

Also, it allows a service person in the future to disconnect one  
battery bank without causing any sparks at the battery.

Smile.
Windy



> Date: Tue, 26 Dec 2006 16:01:39 -0800
> From: "Walt Ratterman" <wratterman at SunEnergyPower.com>
> Subject: Paralleling Battery Banks
>
>
>
>
> Quick Question:
>
> We have a remote situation, where we have two sets of 48V "Batteries"
> comprised of 24-2V cells each, to be part of an Outback Power system.
> We are running two sets of 4/0 home run cables back to the inverter.
> One set will be from each of the two 48V battery banks.
>
> Normally, we would parallel the two batteries at the battery location
> (as well as having them paralleled where the homerun cables come into
> the inverter).
>
> We are facing a situation where we may be short on battery cables.  Do
> you see any particular problem in leaving off the paralleling  
> cables at
> the battery bank, and having the paralleling done only where the  
> homerun
> cables come together in the Inverter enclosure?
>
> Thanks,
>
> Walt Ratterman
> Rwanda


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