What should a dc volt meter read?
Thread Starter
Melting Slicks
Joined: Dec 2003
Posts: 2,334
Likes: 11
From: las vegas nv.
What should a dc volt meter read?
Battery fully charged on a batt. tender plus. On the meter it reads around 11.90 v is this about right? The display in the car reads 14.1 and goes down to 13.7 when warmed up. Is the meter off?
Drifting
Joined: Jul 2002
Posts: 1,613
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From: Spring Tx
Voltage reading when car is running is the output of the alternator. Sounds like battery has a dead or dieing cell if you reading without the battery tender connected and the car not running.A good battery should read at least 12.6 volts
Safety Car
Joined: Aug 2000
Posts: 4,537
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From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
If your measuring 11.0-13.0 with the car off it's fine. If you measure 13.0-14.8vdc with the car running it's fine. Even the battery tenders will hover in/at the 12.0 volt range. Besides theres all these little elctrical parasites in our C5's that need juice. 
Thread Starter
Melting Slicks
Joined: Dec 2003
Posts: 2,334
Likes: 11
From: las vegas nv.
I did put a real 2 amp charger on for awhile and the meter went up to 13 volts and read 60% fully charged. You are saying not to worry and the battery is fine? The car starts great.
Burning Brakes
Joined: Aug 2003
Posts: 881
Likes: 1
From: Hernando MS
St. Jude Donor '03-'04-'05-'06-'07
Originally Posted by JoeyG
If your measuring 11.0-13.0 with the car off it's fine. If you measure 13.0-14.8vdc with the car running it's fine. Even the battery tenders will hover in/at the 12.0 volt range. Besides theres all these little elctrical parasites in our C5's that need juice.
yup
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
Originally Posted by bobby777
I did put a real 2 amp charger on for awhile and the meter went up to 13 volts and read 60% fully charged. You are saying not to worry and the battery is fine? The car starts great.
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