I have a 2013 Dodge Dart. 80000 miles automatic. We are ready Put 3 batteries in the car. Only in Winter time The battery We'll go dead. We had the dealership checked all the electrical all good. Charging fine. I check it after driving it it's 60% charge only. Only in Winter.
The battery is good the alternator is good. The dealership checked it. I checked it. Have put in 3 different brands of batteries.
If it's at 60% after driving then it's not charging properly.
Have your alternator load tested, and make sure connections are clean and tight.
https://www.youtube.com/watch?v=02Rvv1nxJWk
Sounds like an alternator but just for the heck of it, figured I'd ask...when you swap out the batteries have you noticed excess corrosion build up around the terminals? Are they tight?
If the cables/connections, alternator & voltage regulator turn out good, it could just be the fiat chrysler Q.C. disease.
In that case see if you can get a higher amperage alternator(and a battery brand with a good reputation). This will also help if you sit in the car listening to the radio & using the accessories often.
I had that problem even back when the optima deep cycle batteries were made here, my alternator was good & the battery was new but I had too much draw going on. Upgraded the alternator, it still good when I sold the car a decade later.
Keep in mind that I had installed a complete stereo system with two amplifiers along with a cb radio/scanner so that would be on the hard use side of things.
Mechanics are very roughly equivalent to "car doctors," with huge variances of training, skill, abilities, equipment and aptitudes. At the very least, take the vehicle to another, better dealership shop and have them take a look.
It's no different than physicians who misdiagnosis or fail to diagnosis at all. It's a common phenomenon. This dealership's service department apparently is NOT the Alpha and Omega of diagnostics. It's not the equivalent of the Mayo Clinic or the Harvard Medical School.
Don't let insufficient or lazy analysis damage your vehicle, investment, or safety anymore than letting a substandard doctor fail to diagnosis and properly treat, let's say, a cancer or, in the late Robin Williams' case, Lewy Body. (The principle is the same).
Parenthetically, I'd also upload the issue to the National Highway Transportation Safety Administration website, as a form of documentation/protection. You can also check on carcomplaints.com for any relevant Technical Service Bulletins (TSBs).
