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- From: Brian.E.Hannon@dartmouth.edu (Brian E. Hannon)
- Newsgroups: rec.autos.tech,rec.autos.vw
- Subject: Re: over charging battery
- Message-ID: <1992Oct14.034258.15175@dartvax.dartmouth.edu>
- Date: 14 Oct 92 03:42:58 GMT
- References: <1992Oct12.062637.14627@nmr-z.mgh.harvard.edu>
- Sender: news@dartvax.dartmouth.edu (The News Manager)
- Organization: Dartmouth College, Hanover, NH
- Lines: 22
- X-Posted-From: InterNews1.0a5@newshost.dartmouth.edu
-
- In article <1992Oct12.062637.14627@nmr-z.mgh.harvard.edu>
- shinh@nmr-z.mgh.harvard.edu (Shinjiro Hirose) writes:
-
- > So, does anyone know
- > if my voltage regulator can be stuck in the "on" position?
- > The one time I've dealt with voltage regulators, they didn't
- > let enough charge through. Can they fail in the opposite manner?
-
- Well, it is not really an on/off thing. A voltage regulator simply
- dissipates power stemming from voltage over a specified limit. It
- limits the voltage all the time exactly the same, and the battery
- charges up to this voltage, unless the regulator has failed.
-
- Yes, they can fail in both manners... One way to check is to run the
- car parked for a while revving the engine and then use a meter to
- measure the voltage across the battery. Most automotive systems should
- charge the battery to 13.5-14.0 volts, but the electrolyte won't begin
- to boil until 14.4 volts.
-
- Good luck,
-
- Bri
-