[Shotimes] Re: Fluctuating 12V supply.

Michael molsen@excite.com
Fri, 3 Jan 2003 12:39:28 -0500 (EST)


I see. So it's normal that the "12V" level will fluctuate between 13.8V (if that's max charge voltage) and 12.5V (nominal batt voltage) minus the loss in wires+connectors?

Btw, do you receive the below attached email thread as one long string of text?

---Michael
94MTX,green,BOS+ --- On Fri 01/03, Ron Childs  wrote:From: Ron Childs [mailto: rchildssho@hotmail.com]To: molsen@excite.com, shotimes@autox.team.netDate: Fri, 03 Jan 2003 09:19:24 -0800Subject: Re: [Shotimes] (no subject)Actually, the voltage regulator regulates the charging of the battery by the alternator. It is supposed to keep the battery charged but not overcharged. It is normal to have a bit of voltage loss when comparing battery voltage to the voltage after it has run through a bunch of wire to an accessory. I think about 13.8 v. is normal for when the battery is charging.-Ron Childs  '91>From: "Michael" >>  I'm not an expert on car electronics, but I'm pretty sure something is >wrong in my cars power supply circuit. As I understand it, the voltage >supplied to, say, the headlights, is supposed to be 12V constant. And it is >the voltage regulator in the alternator that keeps the voltage constant.>>In my car however the voltage supply is always about 1V below the battery >voltage. Thus, the headlights and other components frequently see voltage >levels greater than 12V when the engine RPMs increase. And they see Join >Excite! - http://www.excite.com>The most personalized portal on the Web!_________________________________________________________________MSN 8: advanced junk mail protection and 2 months FREE*. http://join.msn.com/?page=features/junkmail

_______________________________________________
Join Excite! - http://www.excite.com
The most personalized portal on the Web!