Car Charging at 15.2 Volts With New Battery
Asked by biull3022 Jan 25, 2016 at 06:25 PM about the 2013 Chevrolet Malibu LS
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 2 years 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 2 years ago
This might help you ----- http://www.aa1car.com/library/charging_checks.htm
Rowefast answered 2 years 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 2 years 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 2 years 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 2 years 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 11 months 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
-
Car Charging at 15.2 Volts With New Battery 7 answers
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 rep...
2013 Chevrolet Malibu LS
-
Maintenance & Repair
-
What's wrong with my car 1 answer
What's wrong with my car it will turn over but won't start
2014 Chevrolet Malibu LT
-
Maintenance & Repair
-
car won't start sometimes but it is not the battery 5 answers
car will start sometimes but not always I have had battery checked and it is good
2011 Chevrolet Malibu LT
-
Maintenance & Repair
-
What would caue my malibu to start running hot with my rpm at 3000 3 answers
my husband changed my water pump and then my car starting rough idling and high rpm when it does this it running hot
2001 Chevrolet Malibu LS
-
Maintenance & Repair
-
battery question 1 answer
i had a problem where my radio stayed on and drained my battery SEVERAL times..problem is solved ...now when i turned the car on it starts but sounds like it cranks slow ....can i recharge the battery...
2001 Chevrolet Malibu Base
-
Maintenance & Repair

Looking for a Used Malibu in your area?
CarGurus has 49,315 nationwide Malibu listings starting at $2,000.
Shortcuts
Search Chevrolet Malibu Questions
Chevrolet Malibu Experts
-
#1T_S_TReputation2,350
-
#2tenspeedReputation2,240
-
#3Tom DemyanReputation1,720
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.