View Single Post
Old 01-19-2020, 09:26 AM   #31
17rsvert
 
17rsvert's Avatar
 
Drives: 2017 HBM 2LT RS Convertible V6 A8
Join Date: Jan 2018
Location: NJ
Posts: 654
Quote:
Originally Posted by SSDan View Post
I did that last year. Got a replacement battery just before the 3 year warranty expired. I had the infamous slow crank start issue. In fact it failed to start right there in the service bay at the dealership.

Now one year later the slow start problem is back.

Do you guys think a higher cranking power battery is the answer to the slow cranking?
How often do drive it and do you go for short drives? The battery will slowly discharge just from sitting, and if you're not running it long enough you may not be topping off the charge. Eventually, a battery that sits without a full charge will degrade on it's own. Check the battery voltage with a volt meter periodically BEFORE YOU START IT after the car has been sitting at least overnight. If it's getting fully recharged, the voltage should read 12.5 or above. If it reads 12.2 or below, it probably isn't being run long enough to fully recharge while driving.
17rsvert is offline   Reply With Quote