Voltage flucuation

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Jun 8, 2007 | 03:53 AM

#11

S2KPUDDYDAD

Joined: Jun 2004

Posts: 8,463

Likes: 25

Quote:

Originally Posted by AusS2000,Jun 8 2007, 04:26 AM

Just for the record, it's FLUCTUATION.

It is normal

my digital gauge reads between 12.9 and 14.3 volts

Jun 8, 2007 | 06:19 AM

#12

JimmyB

Joined: Jul 2002

Posts: 829

Likes: 0

From: Weddington NC

Yep what he said

Jun 8, 2007 | 04:12 PM

#13

AusS2000

Moderator

Joined: Oct 2000

Posts: 30,809

Likes: 15

From: Sydney

Ummm, I was just correcting the spelling.

Jun 8, 2007 | 04:34 PM

#14

jzz30

Joined: Mar 2005

Posts: 5,946

Likes: 7

From: honolulu, hawaii

Jun 9, 2007 | 04:00 AM

#15

S2KPUDDYDAD

Joined: Jun 2004

Posts: 8,463

Likes: 25

Quote:

Originally Posted by jzz30,Jun 8 2007, 07:34 PM

Jun 13, 2007 | 05:51 AM

#16

snakeeater

Registered User

Joined: Feb 2004

Posts: 591

Likes: 0

From: Lafayette, LA

The alternator needs rpms to generate power. So you should see:

Engine off = battery only = ~12v
Low rpm = slight alt charge = ~12.5V
Mid/Hi rpm = full alt charge = 14.4V

The alternator has a voltage regulator that limits output at 14.4V so it won't overcharge the battery.