michael
Posts: 1113
Joined: Sun Sep 22, 2013 9:55 am
Location: Los Angeles, CA

Re: Battery Capacity

Fri May 01, 2015 2:41 pm

286 Volts at termination. Final battery temperature was 87F


Here are some of my logged values (sorry, didn't collect everything, but did my best....)

Dash % Battemp SOC kWh used ETE Volts

100 95 89.8 0 18.4 --

83 -- 76 2.3 15.0 --

43 -- 43 10.3 7.6 326

29 87 31.8 12.9 4.85 318

14 -- -- 15.6 2.25 306

4 -- -- 16.9 0.6 294

1 -- 8.9 17.2 0.1 288


0 -- 8.4 17.3 0 286

(sorry, web site messed up my formatting)


ETE is "energy to empty" as shown on the OBD, while kWh used is the dash display. You might expect that used + ETE would always equal the starting ETE, but you can see this is not the case. So the initial ETE seems to be an estimate only.

This device shows total battery voltage, not individual cells.

And yes I agree, best estimate is about a 5% degradation which is pretty much in line with Tesla reported values at this mileage. So a long range extrapolation is 100K miles at 15% degradation. This is in a moderate Socal environment.
2013 FFE Returned after 3 years with 52,000 miles and battery down to 15.2 kWh
2014 Volt returned with 43,000 miles
2014 Volt 26,000 miles
1967 Corvette 427
1962 Corvette 327
Awaiting a Bolt

michael
Posts: 1113
Joined: Sun Sep 22, 2013 9:55 am
Location: Los Angeles, CA

Re: Battery Capacity

Sat May 02, 2015 8:07 am

Here is a plot of Tesla experience with battery degradation

http://chargedevs.com/wp-content/upload ... -range.png


It seems to show about 95% of original capacity at 50,000 km, not materially different than what I think I saw.
2013 FFE Returned after 3 years with 52,000 miles and battery down to 15.2 kWh
2014 Volt returned with 43,000 miles
2014 Volt 26,000 miles
1967 Corvette 427
1962 Corvette 327
Awaiting a Bolt

KrazyEd
Posts: 12
Joined: Tue Sep 23, 2014 1:17 pm
Location: Las Vegas, NV

Re: Battery Capacity

Mon May 25, 2015 10:50 pm

I have various OBDII scanners, and, they don't seem to give me much information
on the FFE. I get lots of information on my Civic Hybrid, and, got a pretty good
amount of information on my Volt, but, the FFE doesn't really give me anything.
I talked Progressive into giving me a Snapshot devise. All the lights lit up, it showed
that the vehicle was in use, but, didn't transfer any information to them. They sent
me a second device, same deal. I have tried both the FFE OBDII port, and, the left
over ICE OBDII port, without much success. Is there something that I am missing?

sefs
Posts: 236
Joined: Thu Nov 21, 2013 10:00 am
Location: Gibsonia, PA

Re: Battery Capacity

Tue May 26, 2015 2:20 am

Standard OBDII readers are not going to work. Just a side note, both OBDII ports on the car have identical pinouts and work the same. It is suggested in the service manual to use the one behind the door and not the one up under the dash.
2018 Tesla Model 3 LR AWD Multicoat Red Metallic
2012 Ford Focus Electric Ingot Silver - Sold
BRUSA Boosted to 46A at 240V charging, 11kW
Chademo DC Quick Charge Enabled!
Home Quick Charger --> 33.8 kW AC / 31.3 kW DC

GladeStorm
Posts: 67
Joined: Thu Nov 21, 2013 9:17 am
Location: TN

Re: Battery Capacity

Tue May 26, 2015 3:38 am

2013 Ice Storm FFE

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