Battery OPTIMA or OEM Mercedes

I don't see it as overkill. It might have unused capacity, but I'd also rather have a battery that stands up to more than just enough.

I e been happy with them in my last 3 vehicles.

I had an Optima red top in my 89 4runner and that thing lasted for 12 fucking years. Needless to say I bought another one.

Just did that on my 19 gsw, no battery management extra thing to deal with, just the two connectors and obd11 for coding to fleece (not binary agm). Only issue I have is the battery blanket doesn't fit the bigger size.

I have optima yellow and it’s lasted 150,000 miles so far and not slowing down

As previously stated. I have had an Optima Red Top in my Cabriolet for nearly 7 years and have never had a problem. During that that tiome, the battery sat out of the car for almost a year with only occasional bench top charging and was perfectly OK when put back into service. Also, recently I screwed up and left my lights on. The battery was dead dead the next morning. 1.43 volts present to be exact. Took some time but I was able to bring it back up, and it has been performing well ever since. Optima even has a video out about how to bring back a completely dead battery.

I run the red top. I haven't noticed any issues except it doesn't fit the stock tray.

Exactly the same issue I am currently facing with a month old GLC300. No resolution yet

20 years ago optima was good. Now its 300 dollars for a 50 dollar battery. Used to get them super cheap as a jci employee and they would last made in Colorado but the quality control has been gone for decades.

Yes it's overkill if you don't need it. Standard batteries are perfectly fine for 99% of use cases