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post #1 of 25 (permalink) Old 04-10-2018, 05:43 AM Thread Starter
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Compare your battery to others

Many of you here now have battery test units in your possession. Yinzer and I thought it would be a good idea to have a thread where you could compare your battery test results to others, so we developed a short report form to share data. We think that the Ah numbers are most important, so we shortened our form to just report that. The Ah numbers are found near the end of the battery test report.

Please copy Post #2 to report your results. That way the reports will be pretty standard for comparison sake. Note the "period" at the very beginning of my two posts below. It seems as though there must be at least one character outside of the quoted message. Of course if you sign your post, that will take care of that too. Also I just made my notes in red to make it easier to read. We're happy to get your results anyway we can.

When doing your test, this info was sent to me from the All-Data subscription:

Battery - Maintenance or Status Check of High Voltage Battery
Date: May 6, 2014
Order No.: SM-B-54.10/09
Group: 54
SUBJECT: MY-All, Model 451.390/391/490/491
Preparation for Performing Maintenance Service or Status Check of High-Voltage Battery

Here is some text about prepping for the test:
"Drive vehicle (discharge) to < 40 % SOC (see left-hand round "SOC" dial on instrument panel).
^ Leave vehicle parked for approximately 2 hours (no driving, no charging).
^ After this idle period of approximately 2 hours, connect the charging cable, and fully charge the vehicle to 100 % SOC.
^ The vehicle can then be operated normally again.”


Len
2014 EV Coupe 14,500 miles
2014 EV Cabriolet 4,500 miles

Last edited by sokoloff; 04-10-2018 at 06:16 AM.
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post #2 of 25 (permalink) Old 04-10-2018, 05:44 AM Thread Starter
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A. Date of test:
B. Battery production date:
C. Initial in service date:
D. Typical usage:
E. Location of car:
F. At what % do you typically recharge:
G. Current miles/kilometers (specify which):
H. Battery test results in Ah:
CAP mean:
CAP min:
CAP max:
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post #3 of 25 (permalink) Old 04-10-2018, 05:57 AM Thread Starter
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.
Quote:
Originally Posted by sokoloff View Post
A. Date of test: 6/21/2017
B. Battery production date: 11/8/2013
C. Initial in service date: 8/5/2015
D. Typical usage: 30 to 55 mph 10 to 20 mile trips
E. Location of car: Coastal NC
F. At what % do you typically recharge: 50% or less, rarely goes below 20%
G. Current miles/kilometers (specify which): 11,505 miles/18,516 km
H. Battery test results in Ah:
CAP mean: 50.5 Ah
CAP min: 49.8 Ah
CAP max: 51.3 Ah
Len
2014 EV Coupe 14,400 miles (above)
2014 EV Cabriolet 4,500 miles

Last edited by sokoloff; 01-22-2019 at 06:02 AM.
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post #4 of 25 (permalink) Old 04-10-2018, 06:02 AM Thread Starter
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.
Quote:
Originally Posted by sokoloff View Post
A. Date of test: 6/21/2017
B. Battery production date: 3/6/2014
C. Initial in service date: 5/30/2017
D. Typical usage: 30 to 55 mph 10 to 20 mile trips
E. Location of car: Coastal NC
F. At what % do you typically recharge: 50% or less, rarely goes below 20%
G. Current miles/kilometers (specify which): 309 miles/498 km
H. Battery test results in Ah:
CAP mean: 52.5 Ah
CAP min: 51.9 Ah
CAP max: 53.1 Ah
Len
2014 EV Coupe 14,400 miles
2014 EV Cabriolet 4,500 miles (above)

Last edited by sokoloff; 01-22-2019 at 06:03 AM.
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post #5 of 25 (permalink) Old 04-16-2018, 09:08 AM
 
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Compare your battery to others

Quote:
A. Date of test: 2018/4/16
B. Battery production date: 2014/9/10
C. Initial in service date: 2014/9/10
D. Typical usage: 35-65 mph 20-40 miles trips
E. Location of car: Central OH
F. At what % do you typically recharge: 40-80%
G. Current miles/kilometers (specify which): 13100 miles
H. Battery test results in Ah:
CAP mean: 50.4 Ah
CAP min: 51.1 Ah
CAP max:51.9 Ah
I've had the car about 700 miles and 3 weeks at these numbers in ohio

It doesn't seem like this data is from when I took the test (4/13), but rather the current state of the batteries (Last measurement says 0 days). I had to drive 23 miles and had 60% SOC when this test was run. Thanks again to Jim and Len (and Kris!) for lending this unit for the reading.

Bobby

Last edited by centralohcpl; 04-16-2018 at 07:48 PM.
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post #6 of 25 (permalink) Old 04-30-2018, 06:12 AM
 
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I did not follow the test procedure, I'll give that a try tonight.

A. Date of test: 2018 / 4 / 30
B. Battery production date: 2013/2/4
C. Initial in service date: 2013/2/5
D. Typical usage: Everything
E. Location of car: Raleigh, NC
F. At what % do you typically recharge: Anywhere from 1% to 70%
G. Current miles/kilometers (specify which): 35,868
H. Battery test results in Ah:
CAP mean: 48.9
CAP min: 47.9
CAP max: 49.8

Last edited by kcfoxie; 04-30-2018 at 07:08 PM.
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post #7 of 25 (permalink) Old 04-30-2018, 07:08 PM
 
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Drove car to 24% SOC, let it sit 1h45m, charged to 100% - readings from the bottom section of Min/Mean/Max

A. Date of test: 2018 / 4 / 30
B. Battery production date: 2013/2/4
C. Initial in service date: 2013/2/5
D. Typical usage: Everything
E. Location of car: Raleigh, NC
F. At what % do you typically recharge: Anywhere from 1% to 70%
G. Current miles/kilometers (specify which): 35,868
H. Battery test results in Ah:
CAP mean: 50.1
CAP min: 49.2
CAP max: 50.8
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post #8 of 25 (permalink) Old 04-30-2018, 07:10 PM
 
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Tested the 2014... it was at a low SOC, sat half the day, then fully charged between lunch and when John got off work.

A. Date of test: 2018 / 4 / 30
B. Battery production date: 2014/1/27
C. Initial in service date: 2014/1/27
D. Typical usage: 10-20mi/day
E. Location of car: Raleigh, NC
F. At what % do you typically recharge: Anywhere from 10% to 40%
G. Current miles/kilometers (specify which): 20k
H. Battery test results in Ah:
CAP mean: 50.9
CAP min: 49.8
CAP max: 51.5

Last edited by sokoloff; 05-13-2019 at 08:04 AM.
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post #9 of 25 (permalink) Old 06-03-2018, 10:42 AM Thread Starter
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This is the same car as reported in Post #3 above just a year later.

A. Date of test: 6/5/2018
B. Battery production date: 11/8/2013
C. Initial in service date: 8/5/2015
D. Typical usage: 30 to 55 mph 10 to 20 mile trips
E. Location of car: Coastal NC
F. At what % do you typically recharge: 50% or less, rarely goes below 20%
G. Current miles/kilometers (specify which): 15,319 miles/24,655 km
H. Battery test results in Ah:
CAP mean: 50.6 Ah
CAP min: 50.3 Ah
CAP max: 51.1 Ah

Len
2014 EV Coupe 15,000 miles (above)
2014 EV Cabriolet 5,000 miles

Last edited by sokoloff; 01-22-2019 at 06:04 AM.
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post #10 of 25 (permalink) Old 06-05-2018, 08:11 AM Thread Starter
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This is the same car as reported in Post #4 above just a year later.

A. Date of test: 6/4/2018
B. Battery production date: 3/6/2014
C. Initial in service date: 5/30/2017
D. Typical usage: 30 to 55 mph 10 to 20 mile trips
E. Location of car: Coastal NC
F. At what % do you typically recharge: 50% or less, rarely goes below 20%
G. Current miles/kilometers (specify which): 5,355 miles/8,619 km
H. Battery test results in Ah:
CAP mean: 52.6 Ah
CAP min: 52.0 Ah
CAP max: 53.3 Ah

Len
2014 EV Coupe 15,000 miles
2014 EV Cabriolet 5,000 miles (above)

Last edited by sokoloff; 01-22-2019 at 06:05 AM.
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