[Gellison388]

I have a 2017 premier with 96000 miles. Yesterday I noticed a burning smell coming from the front. The 12volt battery was clearly burning to hot and you could hear and smell the acid. I took it to autozone to test it but they wouldn't touch it. I took it to a auto shop where they said they wont touch it. Called up local dealer and they cant touch it till the 20th. I'm an amazon driver who needs his car.

Has anyone experienced this? Autozone suggested its a bad alternator. Could be a voltage regulator? I know I'll need a new battery but need to know the cause so I can fix it. TIA

 

[404 Not Found]

I would simply replace it. It's time. I had this happen on a 4 battery commercial truck. Just one battery. I replaced it and all has been perfect since.

 

[levp]

You can test the voltage with any multimeter (even the cheapest one). Someone will provide more accurate numbers, but I think that if it is between 13 and 15 volts you are OK.

 

[jefro]

I assume the battery is bad. Without some test we don't know.
You need load test and maybe charging amps.

What do they mean won't touch it?

 

[XJ12]

Autozone suggested its a bad alternator. Could be a voltage regulator?

Let's hope it's just the battery with an internal short of some sort. The DC-DC converter in the Bolt that charges the 12V would be an expensive problem.

Welcome to the forum. Hope you get it sorted out.

 

[old dog new tricks]

if the dc-dc converter was overcharging the battery, it should throw a code and shut down, not just keep pumping a battery like that. Need to have it looked at so they can evaluate what is actually happening.

 

[LoneR]

Autozone suggested its a bad alternator. Could be a voltage regulator?

Let's hope it's just the battery with an internal short of some sort. The DC-DC converter in the Bolt that charges the 12V would be an expensive problem.

Welcome to the forum. Hope you get it sorted out.

Forget the expense of the converter. Finding a replacement for that alternator is gonna be an absolute nightmare!

 

[PhilipD]

Finding a replacement for that alternator is gonna be an absolute nightmare!

It absolutely will be a nightmare because the Bolts don't have an alternator. Just a high-volt DC to low-volt DC convertor.

 

[Dark-Fx]

It's not intentionally overcharging it. That's the sign of a shorted battery cell. Replace it ASAP or you risk burning the car down.

 

[jefro]

Test, then fix correct part.

 

[Sean Nelson]

I have a 2017 premier with 96000 miles. Yesterday I noticed a burning smell coming from the front. The 12volt battery was clearly burning to hot and you could hear and smell the acid. I took it to autozone to test it but they wouldn't touch it. I took it to a auto shop where they said they wont touch it. Called up local dealer and they cant touch it till the 20th. I'm an amazon driver who needs his car.

Sounds like an internal short. Don't even think about trying to fix the battery, just toss it and get a new one. It's an easy install, save yourself some money and do it yourself. Taking it to the dealer just gives them an excuse to inflate the problem.

 

[GregBrew]

It absolutely will be a nightmare because the Bolts don't have an alternator. Just a high-volt DC to low-volt DC convertor.

He forgot the "/s"...