Deciding between a standard or extended range battery

silverelan

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Ooo. Not too fast then. That trip at 180 miles one way, was influencing whether to get an AWD SR or ER. That is not a great situation for having to charge that long over night.
Right. 240V chargers are like 20-30 miles of range per hour. So use them as destination chargers to recharge overnight if you're on a trip or in your garage for daily driving.
 

hybrid2bev

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Ooo. Not too fast then. That trip at 180 miles one way, was influencing whether to get an AWD SR or ER. That is not a great situation for having to charge that long over night.
No level 3 chargers on your route or near the destination? Do you really need to charge up to 80% on the L2 or would a lower state of charge on the L2 be enough to get you to a L3 charger then back home?

Seems like if the college town installed 6 L2 charges there should be a L3 (50 kW+) charger not far away.
 

Redundant

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No level 3 chargers on your route or near the destination? Do you really need to charge up to 80% on the L2 or would a lower state of charge on the L2 be enough to get you to a L3 charger then back home?
Well, there are other chargers in the area. But, when going to the school, it would be convenient to be able to charge there and proceed with activities with son. Starting to think that I won't use the EV for trips there. Go for baseball games, and don't want to be figuring out getting to games and getting charged, etc. If use ice for school, then really only need SR.
 

ChasingCoral

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All these discussions are asking the right questions. It's all a matter of tradeoff when looking at SR vs ER batteries. How many miles do you normally drive? Can you charge every night? How long (time or distance) do you want to go between stops on long trips? Where are your long trips (some routes have enough chargers now and some still won't in five years).

Of course, lots of these questions are "want" questions more than "need" questions -- which are still valid.
 

ChasingCoral

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Well, there are other chargers in the area. But, when going to the school, it would be convenient to be able to charge there and proceed with activities with son. Starting to think that I won't use the EV for trips there.
Don't just think about chargers at the destination. If there's a nice Level 3 charger most of the way there, you might be able to hit that spot on the way up and back. I just pulled that trick on a drive up into PA with my Leaf. Charged about 3/4 of the way up and 1/4 of the way back.
 

Redundant

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All these discussions are asking the right questions. It's all a matter of tradeoff when looking at SR vs ER batteries. How many miles do you normally drive? Can you charge every night? How long (time or distance) do you want to go between stops on long trips? Where are your long trips (some routes have enough chargers now and some still won't in five years).

Of course, lots of these questions are "want" questions more than "need" questions -- which are still valid.
Want definately plays a role. But, for my day to day needs, really, the SR will suffice. 60 miles round trip workdays, and sometimes a little more on weekends, if traveling for golf. But SR will still probably be fine. But, I guess I will have to see what my range is and then maybe, like you say, hit a more powerful charger on the way down and back.
 

ChasingCoral

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Also, according to this video, the SR battery only charges at 115 kw while the ER battery charges at 150 kw.
 
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Billyk24

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What we don't know is how long does it hold at this rate.
 

ChasingCoral

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True but it gives you your top end.
 

Mopey

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Also, according to this video, the SR battery only chargers at 115 kw while the ER battery chargers at 150 kw.
He also said the available battery capacity is approx. 90% of the rated capacity. That suggests, (in answer to some people's questions), that the range numbers Ford is advertising takes into account the necessary battery reserves required to maintain a healthy battery life. Could also explain why Ford executives have been so confident in saying MME range will be "at least" xxx miles. They know they have 10% extra range in their hip pockets.
 

mattsaradan

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Also, according to this video, the SR battery only charges at 115 kw while the ER battery charges at 150 kw.
From Ford website, that applies to the Select Version (both SR and ER). Configuration in UK may be different; in US all models except Select charge up to 150 kw
 

ChasingCoral

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You sure it doesn’t apply to the SR Premium as well?
 
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macchiaz-o

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  • Thread starter
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You sure it doesn’t apply to the SR Premium as well?
Yeah, we don't actually know yet. Just guessing, but I think we'll find out that SR is limited to 115 kW, ER to 150 kW, regardless of Select, Premium, etc. I'm also curious to know the minimum time from 10% to 80% on the standard range battery.
 

mattsaradan

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Yeah, we don't actually know yet. Just guessing, but I think we'll find out that SR is limited to 115 kW, ER to 150 kW, regardless of Select, Premium, etc. I'm also curious to know the minimum time from 10% to 80% on the standard range battery.
Here is link to Ford spec sheet:
https://media.ford.com/content/dam/...uct/2021/mach-e/Mustang-Mach-E-Tech-Specs.pdf

Since the charge speed is determined by the size of the on-board charger, with faster chargers being more expensive, seems it would make sense the more expensive trims have the faster charge times.
 

timbop

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From Ford website, that applies to the Select Version (both SR and ER). Configuration in UK may be different; in US all models except Select charge up to 150 kw
You are misreading the chart. The Select says "up to 150kw", not "always" 150kwhr. There is no ER on the Select, so it only does 115kw because it only comes with a 75.7kwhr battery. I can't remember where I read/saw it (I think it was they engineer that did the deep dive on the batteries), but somewhere it was mentioned that the additional pack being wired in parallel on the ER is why the charging rate was able to go up.

As for the 70kwhr/90kwhr mention in the video that is the first I've seen specific mention of buffer size. Since it wasn't Darren Palmer or someone else directly from ford saying it, I will classify that statement as a "rumor" for now - my guess is the engineers are still tweaking things right now and buffer size is certainly something that may not be definite yet.
 
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