bullshark

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I still don't understand why Ford make is such a hassle to change a 12V, even worse design compare to e-tron.
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RonTCat

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I still don't understand why Ford make is such a hassle to change a 12V, even worse design compare to e-tron.
What is your estimate of how often you'll need to replace the battery?
 

jlauro

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What is your estimate of how often you'll need to replace the battery?
I assume typical of other vehicles, which is ~3-5 years, probably closer to the high end as it should be able to degrade a little more than one needing to crank the engine.
I don't know why they don't list them on routine maintenance.
 

bullshark

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Which one has better design and wiring? Model Y to me.
Ford Mustang Mach-E Under The Mach-E Hood / Frunk: motor components, electrical control hardware, and DIY maintenance point Screen Shot 2021-01-08 at 9.43.47 AM
Ford Mustang Mach-E Under The Mach-E Hood / Frunk: motor components, electrical control hardware, and DIY maintenance point Screen Shot 2021-01-08 at 9.44.43 AM
 


jlauro

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Which one has better design and wiring? Model Y to me.
Ford Mustang Mach-E Under The Mach-E Hood / Frunk: motor components, electrical control hardware, and DIY maintenance point Screen Shot 2021-01-08 at 9.44.43 AM
Ford Mustang Mach-E Under The Mach-E Hood / Frunk: motor components, electrical control hardware, and DIY maintenance point Screen Shot 2021-01-08 at 9.44.43 AM
Maybe (you are probably right), but I can't tell from the picture... would leave it to a professional mechanic who has to work on both to answer. It's not how it looks, but how easy is it to maintain / replace parts.
 

generaltso

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Not often, however this should be designed as more serviceable unit
It‘s serviceable. You just have to remove the plastic first. If it only needs to be replaced every 5 or more years, I think that’s reasonable. Difficulty in replacing 12v batteries is becoming much more common in new vehicles, not just BEVs. I just replaced the battery in my wife’s Pacifica and it was a royal PIA. But that was nothing compared to my old Dodge Journey that had the battery in the front fender, right between the front wheel and the bumper.
 

bullshark

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It‘s serviceable. You just have to remove the plastic first. If it only needs to be replaced every 5 or more years, I think that’s reasonable. Difficulty in replacing 12v batteries is becoming much more common in new vehicles, not just BEVs. I just replaced the battery in my wife’s Pacifica and it was a royal PIA. But that was nothing compared to my old Dodge Journey that had the battery in the front fender, right between the front wheel and the bumper.
Good to know, that's ridiculous, hope there's a good reason for that!
 

GoGoGadgetMachE

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It‘s serviceable. You just have to remove the plastic first. If it only needs to be replaced every 5 or more years, I think that’s reasonable. Difficulty in replacing 12v batteries is becoming much more common in new vehicles, not just BEVs. I just replaced the battery in my wife’s Pacifica and it was a royal PIA. But that was nothing compared to my old Dodge Journey that had the battery in the front fender, right between the front wheel and the bumper.
yeah when I replaced it in my Fusion after about 6 years, the people at AutoZone literally couldn't figure it out. I had to basically show them the compartment and take the old one out before they were like "oh okay". it's clearly documented in the manual but it's just a pita to deal with - it's in the left trunk wheel well area and there's an access hole you can open in the trunk that is JUST BIG ENOUGH to get the battery through.

Ford Mustang Mach-E Under The Mach-E Hood / Frunk: motor components, electrical control hardware, and DIY maintenance point 1610130243010
 

RonTCat

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Good to know, that's ridiculous, hope there's a good reason for that!
OK, on a serious note: The Mach-e 12v battery will be much smaller than you might expect. Why? As noted, it doesn't have to "crank" the Mach-e. I would also expect 7+ years of life out of it.

I would put the size somewhere between a "typical" car/truck battery and a motorcycle battery.

Folks like @ChasingCoral might have seen one "in person", so they might be able to comment.
 

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Which one has better design and wiring? Model Y to me.
This strikes me as a dumb question. When it comes to infrastructure the best design is the one that works. Elegant software is usually better. Elegant plumbing? Never matters. Without ever seeing a picture of either, if you asked me what to expect, I'd say the Tesla would be more elegant, less functional, and less reliable whereas the Ford would be slightly kludgy, functional, and reliable. If this is the case, given that you are not looking at any of this, Ford would be the clear winner.

IMO Tesla's advantage is more in the power electronics.
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