I've had my Mach E for about four years and nearly 100k miles. I've never worried about the 80% charging and always charged to 100%. I can't tell a huge difference in the range after four years.
Currently have a MB EQS that’s fantastic for about 1/3 of what it cost new.
I have a 2020 GLB250 and mine was saying "12V battery" on and off for a few weeks. I checked under the hood with a multimeter and my main battery did have a low voltage while the car was off. I replaced it a few weeks back. No more notification.
m.b. buy a Benz battery?
If the battery dropped to 9V it is probably defective.
Mine did this around 30k miles. The battery was swollen and definitely the problem, but all battery scanners showed that it was good
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.
Neighbor has a F-150 lightning.
The battery on it has been replaced twice in 3 years. Its spent a few months now cumulatively at the dealership waiting for the new batteries, and various other repairs.
Warranty covered my 2022 Mach-E battery replacement but it would've cost $12k out of pocket.
I’ve had a transit custom 9 years and the stop start only worked when the battery was fairly new.
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If choosing battery across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare battery across these categories:
In March 2026 on PartReview, battery OEM FORD were overall better than OEM Mercedes.
In March 2026 on PartReview, battery OEM FORD were overall more popular than OEM Mercedes.
By vote balance, battery OEM FORD surpassed OEM Mercedes:
By number of reviews, battery OEM FORD surpassed OEM Mercedes:
In March 2026, according to PartReview, battery OEM FORD led more car-specific ratings than OEM Mercedes:
OEM FORD are chosen by owners of cars such as: Ford Mustang, and others.
Battery OEM Mercedes have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of battery OEM FORD with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW.
Also available: comparisons of battery OEM Mercedes with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW.
You can also see who is better among other battery manufacturers: OPTIMA or Varta, OPTIMA or Bosch, OPTIMA or OEM Subaru, OPTIMA or OEM Volkswagen, OPTIMA or YUASA.
