Love the optima redtops, seem to last forever
Finally pulled the trusty old Panasonic battery out of my CX-5 and replaced it with an Optima Yellowtop. When I buttoned everything up, I still had my radio stations and settings right where I left them.
Buy a nice battery. I bought used 6 months ago and did a week of nightly research first, by FAR the biggest complaint was the battery going out or having constant low messages. I put a yellow top in mine a few days after getting it, not one issue this far.
Currently have a MB EQS that’s fantastic for about 1/3 of what it cost new.
I have an Optima Red Top battery in my 2006 Dodge Magnum that's at least 5 years old (probably older). It was heavily abused for years. Since then, this battery has been in my daily driver (5.7L V8), and it's still cranking strong with no issues.
m.b. buy a Benz battery?
If the battery dropped to 9V it is probably defective.
In the 166 body MB ML/GL, its under the passenger seat, with barely enough room to reach the rear terminal. It's also so far forward that you can barely grab the fuckin thing. Oh, did I mention that it is a group 49 battery.
Fwiw optima batteries have been garbage for the last 20 years.
Optima batteries are absolute trash for deep discharge use. Their quality is also not what it used to be. Anytime I see them in marine use, I swap them out for a proper AGM. Only thing they are decent at is starting applications in cars.
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