tkdbrusco
Posts: 19
Joined: Mon Nov 20, 2017 9:13 am

Max kWh on new 2017 pack?

Fri Nov 24, 2017 9:36 pm

Hey everyone. I just got an FFE 2017 on a lease (15k/year). I downloaded for scan lite and want to keep tabs on my battery over the coming years. I'm a leaf owner as well and consider myself quite experienced in measuring battery degradation and such.

My objective is to simply determine how my pack is doing over the coming three years so that I can anticipate whether buying the car at least end is the best course of action. I got a great deal on the car so I'm out either $7300 at lease end and can either turn it back in, or buy it for $8080, so either way is fine by me. If the pack is holding up well, then I'll buy it, if not, then I'll give it back. Right now my Leaf (24kwh 2015 model) is at about 11% degradation after 3.5 years and 54k miles. I expect t the FFE to be better than that by the end of lease considering the battery is both larger (fewer cycle counts), and also has TMS.

My questions are (1) What is the expected full capacity of a FFE battery when new? Not talking the 33.5kwh, but the actual measurable usable capacity at 100% charge. (2) Will for scan measure this? if so, how? (3) Can I expect this number to be lower right now because we are getting into the cold temps of winter.

my car was manufactured in 9/17 and has 350mi on it right now.

Thanks,
Jonathan

jmueller065
Posts: 2386
Joined: Tue Feb 12, 2013 4:36 am
Location: Southeastern MI
Contact: Website

Re: Max kWh on new 2017 pack?

Sat Nov 25, 2017 6:14 am

Using Forscan look at the BECM (Battery control module). I forget what the value is but it will be pretty obvious.

That value is really only a calculated value, however.

If you really want to measure it do a run down test: Turn on the enhanced trip meter, on a full charge reset it, open all the windows and turn on max heat and let it run down to empty. The trip meter will show you how much.

It should be about 80% of the 33kWh (10% on the bottom and 10% on the top--yes Ford does indeed leave about 10% on either end; at least they did with the smaller battery. They were very conservative).
2018 Cajun Red Chevy Bolt
2016 Magnetic C-Max Energi (lease returned)
2014 Sunset Escape
2014 Thor Axis (V-10)
2013 Focus Electric (lease returned Jan 2016 for the C-Max above)
https://spareelectrons.wordpress.com/

spirilis
Posts: 154
Joined: Fri Jul 14, 2017 4:53 am
Location: Maryland

Re: Max kWh on new 2017 pack?

Sat Nov 25, 2017 6:50 am

The calculated value I was getting at 5K miles was ~28.08kwh or so. Haven't done a run-down test yet. It's already at 12K now... on target to do probably 30K by the end of the 1st year!
2017 Ford Focus Electric (Magnetic)
2017 Ford C-Max Energi SE (Kona Blue)

triangles
Posts: 1056
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio

Re: Max kWh on new 2017 pack?

Sat Nov 25, 2017 6:59 am

Yes the cold will reduce the capacity but it will come back when it gets warm out. You get a double whammy because you'll also be using battery and cabin heat which will further impact your range.
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

davideos
Posts: 406
Joined: Mon Jan 21, 2013 8:58 pm
Location: So Cal

Re: Max kWh on new 2017 pack?

Tue Nov 28, 2017 10:31 am

After I had my 2012 battery replaced with a 2017 battery, I used the trip-o-meter to determine the battery capacity to be 30KWhs. I recently completed a round trip of 92miles with 10 miles to spare. Relatively flat ground at a constant 65mph. My 2012 battery did suffer significantly from degradation...at least 15% over 4.5 years and 45k miles.

campfamily
Posts: 438
Joined: Tue Apr 21, 2015 8:07 am
Location: Southern California

Re: Max kWh on new 2017 pack?

Tue Nov 28, 2017 11:18 am

davideos wrote:After I had my 2012 battery replaced with a 2017 battery, I used the trip-o-meter to determine the battery capacity to be 30KWhs. I recently completed a round trip of 92miles with 10 miles to spare. Relatively flat ground at a constant 65mph. My 2012 battery did suffer significantly from degradation...at least 15% over 4.5 years and 45k miles.
davideos - what happened to your car that caused Ford to replace the battery?

Keith
GONE - 2015 FFE, Magnetic with leather interior, debadged & tinted
38,500 miles (since May 2015), average 246 Wh/mile

REPLACED WITH - 2018 Tesla Model3, LR RWD, Obsidian Black
11,000 miles (since Nov 2018), average 235 Wh/mile

triangles
Posts: 1056
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio

Re: Max kWh on new 2017 pack?

Wed Nov 29, 2017 12:34 pm

Coolant leaked inside his battery ruining it.
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

campfamily
Posts: 438
Joined: Tue Apr 21, 2015 8:07 am
Location: Southern California

Re: Max kWh on new 2017 pack?

Thu Nov 30, 2017 7:48 am

triangles wrote:Coolant leaked inside his battery ruining it.
Hmmmm.....wonder how one could have that happen? I'd sure like to have the higher capacity battery in my car!!! :twisted:
GONE - 2015 FFE, Magnetic with leather interior, debadged & tinted
38,500 miles (since May 2015), average 246 Wh/mile

REPLACED WITH - 2018 Tesla Model3, LR RWD, Obsidian Black
11,000 miles (since Nov 2018), average 235 Wh/mile

davideos
Posts: 406
Joined: Mon Jan 21, 2013 8:58 pm
Location: So Cal

Re: Max kWh on new 2017 pack?

Thu Nov 30, 2017 10:35 am

No, I don't think it was a coolant leak...no indication of that. I had an issue with the battery in year 2. Shipped to Ford and subsequently shipped back. I don't know the reason this second time either, but it shipped to Ford and they declared it dead and they replaced it with a 2017 battery. Likely because they either don't make the old battery anymore or they have found a potential issue with the old battery. When I got the car back, the battery was listed on the invoice as being over $20k.

I had a coolant problem following the replacement as Ford forgot to refill the coolant after the battery replacement. The pump that cycles fluid through the battery and the charging circuit was basically empty and the charger would get too hot and subsequently shut-down. I finally figured it out and added Ford Coolant to make the issue go away, but I still had to take it back to Ford to purge the air out of the cabin heater loop. Fortunately, the weather was good and the battery itself doesn't get too hot when running. But charging is another story...that circuit heats up quickly. When it does, it throttles the charge rate and will eventually stop charging with a fault. I purchased the OBDLink MX and downloaded the Forscan software to see all this going on....good to have as a diagnostic tool as the car does things on its own without telling the operator.

triangles
Posts: 1056
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio

Re: Max kWh on new 2017 pack?

Thu Nov 30, 2017 2:05 pm

Oops. My mistake. There was someone else who had it replaced because coolant leaked inside the battery.
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

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