Doobster6
Well-Known Member
- First Name
- Len
- Joined
- Aug 1, 2024
- Threads
- 19
- Messages
- 225
- Reaction score
- 278
- Location
- Exton, PA
- Vehicles
- 2024 Mach-E Premium extended battery, Vapor Blue
- Occupation
- Retired manufacturing executive
- Thread starter
- #1
FORD, listen up……….I love all the new improvements planned for 2025; cooled seats, heat pump, more center console space. Etc. But what I continually read in these forums is the overall nightmare that is the MME’s 12V implementation. Everyone lives in fear of the ‘somewhere-around-three-year’ surprise binary failure, which apparently occurs without notice. Even if covered under warranty, your customers shouldn’t be inconvenienced by a total and instant shut down of the entire car, and then the Byzantine means by which it must be corrected by the owner, or towed away back to a Ford dealer. The whole thing in place now for 4 (or is it 5?) model years looks like a last minute Rube-Goldberg solution to an overlooked problem!
Here are some suggestions:
- Change battery chemistry and/or construction to something that doesn’t just go from a ‘1’ to a ‘0’ with no advance warning. Also, these batteries ought to enjoy a 5-7 year lifespan instead of 3 years, just like ‘old fashioned’ lead-acid batteries currently do.
- Provide the means of gaging/viewing its SOC if that’s still necessary after you make some changes. Lead acid batteries in ICE cars usually warn us with slow engine cranking for example, giving us (usually) months worth of heads-up.
- Change the logic by which the HVB wakes up and recharges the LVB. Maybe this is already in place with recent OTA updates?
- Provide a mechanical override cable (like those often found in trunks) that will allow the front hood to be opened without having to ‘jumper’ it open through the front portal. I mean, who carries a 12V supply in their back pocket (because you can’t keep it in a car that can’t be accessed absent 12V power).
- Provide a snap-down lift-up panel under the hood so that it’s easy to access and/or remove the battery without having to dis-assemble 2/3rds of the other plastic panels.
Maybe all this has been suggested already throughout the MME’s first years. If so, why aren’t we hearing about specific changes to address the issue? I’ll shut up when I see some changes that actually do!
BTW…..otherwise I LOVE my MME, which currently is only 5 months old and has only 2,300 miles. It’s been problem free and a total joy to own! I’ll want to stay with it when my lease is up in 2027, but stupid issues like this one will give me pause…..
Here are some suggestions:
- Change battery chemistry and/or construction to something that doesn’t just go from a ‘1’ to a ‘0’ with no advance warning. Also, these batteries ought to enjoy a 5-7 year lifespan instead of 3 years, just like ‘old fashioned’ lead-acid batteries currently do.
- Provide the means of gaging/viewing its SOC if that’s still necessary after you make some changes. Lead acid batteries in ICE cars usually warn us with slow engine cranking for example, giving us (usually) months worth of heads-up.
- Change the logic by which the HVB wakes up and recharges the LVB. Maybe this is already in place with recent OTA updates?
- Provide a mechanical override cable (like those often found in trunks) that will allow the front hood to be opened without having to ‘jumper’ it open through the front portal. I mean, who carries a 12V supply in their back pocket (because you can’t keep it in a car that can’t be accessed absent 12V power).
- Provide a snap-down lift-up panel under the hood so that it’s easy to access and/or remove the battery without having to dis-assemble 2/3rds of the other plastic panels.
Maybe all this has been suggested already throughout the MME’s first years. If so, why aren’t we hearing about specific changes to address the issue? I’ll shut up when I see some changes that actually do!
BTW…..otherwise I LOVE my MME, which currently is only 5 months old and has only 2,300 miles. It’s been problem free and a total joy to own! I’ll want to stay with it when my lease is up in 2027, but stupid issues like this one will give me pause…..
Sponsored
