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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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