Battery Duralast or OEM Mercedes

I replaced mine in my 2018 GLE63s with an aftermarket one from Auto Zone (Duralast Platinum). I finally got my start/stop feature back which I had forgotten about and also forgotten how annoying it was to have it ????

I did just replace the battery in the Trans Am in the fall after 15 years (bought when I picked the car up - I really got my money's worth on that Duralast). It had never been on a tender and that car sees maybe 1500 miles in a big year. But of course it also has virtually zero parasitic drain. I didn't even realize how weak it was progressively getting until I had a no start moving it out of the garage for a wash. It started so much easier on the new batt, I was actually laughing.

This just happened to me last month on my 2017 C43 on the OEM battery. I guess five years is typical on these newer MB.

I'm about to replace the battery on my 2013 acura tl 3.5L, looking for some advice on choosing between two batteries. The two batteries im looking at are the ACDelco Advantage 24FS or the Duralast ProPower Plus 24F-DL. They are similar in specs, same CCA though the duralast does have about 100 more cranking amps and 17 minutes more of reserve time. The acdelco comes with 18month warranty while the duralast has 2 years.

The other one (duralast one) has a better cca and will perform better in the winter months.

the only time it failed me was when the battery died after 100k miles.

Last December, the OEM battery died and I replaced it with a new Duralast battery from AutoZone. Fast forward to today, the car wouldn’t start at all. Had to jump it just to get it running and drove straight to AutoZone to get it tested.

The batteries Mercedes uses seem to be really poor quality. I have a daily class and it seems they are changing the battery every 1.5 years so far on average…

I've dealt with this issue on both of my newer AMG vehicles. My older ones never had this problem. From my understanding, this is caused by the new mbux system being a bit of a power hog. I eventually had to invest in a trickle charger, and I have to charge both of my AMGs 3-4 times per year. It gets worse as your battery gets toward the end of its lifespan.

Don't do Duralast...they don't last.