Car Charging at 15.2 Volts With New Battery
Question type: Maintenance & Repair
My car is exactly 3 years old. Yesterday my car didn't start, battery low, 15 degrees outside. Called AAA and they checked the charging system and didn't see a problem but suggested the battery be replaced. Happen to notice that the "battery voltage" on my display was reading 15.2 volts while driving around town and highway but did see it go down as low as 14.5 after restarting the car. Is this high charging voltage ok? It just seems that in the past it basically stayed in the 14 range but never kept track of it. Checked all the lights and didn't leave anything on that would have drawn down the battery.
7 Answers
F_O_R answered about a year ago
15 volts is a bit high but I would check that against another tester. Is your battery boiling dry? In any case clean up the battery terminals and cable ends to make sure you have a good connection.
F_O_R answered about a year ago
This might help you ----- http://www.aa1car.com/library/charging_checks.htm
Rowefast answered about a year ago
They are right, alternator is trying to charge a bad battery, and everything is running off of just the alternator. Battery voltage may be fine, but I bet the cranking amps are not even close. Replace the battery and the alternator will settle down to the 14.7 Charging volts.
biull3022 answered about a year ago
I had the battery replaced by AAA yesterday. Today is when I noticed the 15.2 volts that the car display is showing. When AAA checked the the new battery after it was installed it showed everything was good.
F_O_R answered about a year ago
New batteries are not necessarily fully charged. The charging voltage may drop down after a while. Cold weather can also play a factor in charging voltage.
Js08016 answered about a year ago
The factory battery in your Chevy was only a 3 year battery to begin with. Some batteries, like AC Delco for example, will just drop dead without warning. I know, ahem, from personal experience. I don't think that the voltage reading, given the cold temperatures, is excessive. But keep an eye on it. A battery that's being overcharged will gas and you'll be able to smell it. It's a strong distinctive odor. In addition with a newer vehicle if the computer detects an overcharge condition the red battery light on the dash will come on just like if the alternator wasn't working. On a side note, if the mechanic who replaced the battery didn't put Vaseline on the battery terminals you'll want to do that. It prevents the terminals from getting corroded. I always did that on my '93 Caprice and in nearly 20 years of owning the car I never ever had a spot of corrosion on the battery. HTH. - Jim
GuruPXH6 answered 3 weeks ago
My battery died yesterdwy, jump started and put on charger. Load test said battery was good . Complete caharge test showed th alternator or regulator is bad. My warranty is still good thank god! My voltagevon dashboard yoes from 14 volts to 16 volts then drops to 10.
Your Answer
Related Questions
-
Is my computer controlled charging system bad? 3 answers
I have an 07 malibu ls 3.5 v6. About a year and 6 months ago i was driving and my tc light came on. shortly there after my abs light and display say service power steering and my wheel got stiff. i ...
2007 Chevrolet Malibu LS
-
Maintenance & Repair
-
My stock 99 Malibu battery is not charging while it is started 2 answers
My malibu has went through 3 batteries in two weeks but it only doses it when the car is started any ideas
1999 Chevrolet Malibu
-
Maintenance & Repair
-
08 malibu classic my car was running shut if off to go in store came out and now it wont crank.. have a fully charged battery 3 answers
went to the store car was running fine came out to leave not even 10 minutes and it wont crank .. battery is fully charged have all lights radio everything just wont crank
2008 Chevrolet Malibu LS Classic
-
Maintenance & Repair
-
Car trouble 4 answers
2001 Malibu when you crank the car after a few secs. Horn beeps then battery light appears drive it for a little then abs light appears gauges move up and down then it dies we have changed the batt...
2001 Chevrolet Malibu Base
-
Maintenance & Repair
-
Battery is dead after I installed a new stereo 2 answers
I have a 2005 Chevy malibu and I put in a new stereo and amp but now my battery is dead and the dash lights are staying on.
2005 Chevrolet Malibu
-
Car Customization
Looking for a Used Malibu in your area?
CarGurus has 79,655 nationwide Malibu listings starting at $1,500.
Shortcuts
Search Chevrolet Malibu Questions
Chevrolet Malibu Experts
| #1 |
|
tenspeed
Reputation
2,010
|
| #2 |
|
T_S_T
Reputation
1,860
|
| #3 |
|
Tom Demyan
Reputation
1,340
|
Related Models For Sale
Used Cars For Sale
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.