Xref: utzoo rec.autos.tech:21953 sci.electronics:17946
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!dog.ee.lbl.gov!nosc!cod!burkley
From: burkley@cod.NOSC.MIL (Joe Burkley)
Newsgroups: rec.autos.tech,sci.electronics
Subject: Re: Charging two 6 volt car batteries
Message-ID: <2857@cod.NOSC.MIL>
Date: 21 Feb 91 22:59:07 GMT
References: <74@owl.ukc.ac.uk>
Organization: Naval Ocean System Center -Cant touch this" -s6 +hline
Lines: 25

Warning!! This is speculation, I don't know for sure.

It appears to me that you should be able to charge the batteries
in either configuration.  

In series is the way you have them installed in your car.  Your
car's charging system is in fact charging them (in the series
configuration) while you drive.  Why should a battery charger have
a problem in charging them then?  Semi's use this configuration.

In parallel, the charger is just seeing a battery (6 volt) with
twice the capacity.  Often pickup trucks and RVs are fitted with
two batteries in parallel so that they have extra capacity for
running access., cold starts, etc.  Again, the car's charging system
handles it, so why wouldn't a conventional plug in charger.

The only problem I can see is that if one battery is bad, it may
affect how the other is charged.

			-Joe
-- 
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| Joe Burkley              | O_O |       "It's not enough that I succeed,   |
| burkley@cod.nosc.mil      \/_\/            everyone else must fail."      |
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