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Free minder
Join Date: Nov 2001
Location: Middlessex county, MA
Posts: 9,422
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The voltage difference is the ohmic drop caused by the load of all the components connected to the battery. That is normal. The battery draws more current when connected to something than to nothing. The problem is that it draws the voltage lower than what your regulator can regulate, so I would use a regulator with a lower limit, like 10V, if that is possible. You can also double the battery (same model, in parallel), it will decrease your ohmic drop by half.
Aurel
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1978 SC Targa, DC15 cams, 9.3:1 cr, backdated heat, sport exhaust https://1978sctarga.car.blog/
2014 Cayenne platinum edition
2008 Benz C300 (wife’s)
2010 Honda Civic LX (daughter’s)
Last edited by Aurel; 11-19-2008 at 03:35 PM..
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