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.
I had the same issue with my MY2024 XL Hybrid constantly going into deep sleep mode. There is a recall for MY2022 and MY2023 Mavericks Hybrids due to a bad 12V battery. I took it to the dealer anyways... After their battery test, mine FAILED and they replaced the 12V with an new AGM battery (free under the OG 3yr/36k mi warranty).
XLT 22 Hybrid, aside from the shitty OEM battery that was just swapped out to an AGM one and the numerous recalls, still loving my truck. Gas is still great and the bed works very well.
Had the OEM battery until 2021 before it died. I think six years in the NE is pretty decent for an OEM battery. 78k miles on the truck so far. No issues with the starter or the new battery since replacement.
Mine did this around 30k miles. The battery was swollen and definitely the problem, but all battery scanners showed that it was good
In keeping my 07 f150 xl long bed regular cab till my feet go through the floor and I gotta push it up the exit ramps.
I met a guy with a 25, trying to get a replacement battery that has to be done at the dealership.
A $80k truck that you're basically renting from Ford because of all the gatekeeping software crap- and most of it experimental with the buyers being the test market.
just had to get the battery replaced on our 24 bronco, same thing kept going into battery saver
The battery is almost certainly dead.
Something else wrong with your car likely killed the battery and if that's the case buying a new battery will just result in the same problem pretty soon.
That battery is absolutely cooked, sounds like the cells have sulfated to hell or there's internal damage from deep cycling
The fact that it's only taking 72-94Wh when it should be 600Wh is screaming dead cells, and that voltage drop from 12.8 to 4v in 2 hours is not normal even with parasitic draw
The battery is trash - if it was at 4v, the cells are either internally buckled/shorted - or the AGM is damaged and thus will not hold any charge (no capacity).
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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 Volvo were overall better than OEM FORD.
In March 2026 on PartReview, battery OEM Volvo were overall more popular than OEM FORD.
By vote balance, battery OEM Volvo surpassed OEM FORD:
By number of reviews, battery OEM Volvo surpassed OEM FORD:
In March 2026, according to PartReview, battery OEM FORD led more car-specific ratings than OEM Volvo:
OEM FORD are chosen by owners of cars such as: Ford Mustang, and others.
Battery OEM Volvo 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 Volvo 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.
