[sokoloff]

My son visited over Thanksgiving and brought a handful of battery test units with him to make available to our group. The units are only for the 451 version. Several of you here already have one.

Contact me at "sokoloff" "at" "atmc" "dot" "net" for more details. Still $75 including shipping within the US. It's much easier for me to deal with these units with my personal e-mail as opposed to private messages on the forum.

Here is a thread with a long history of what these units are and what they do as well as showing a sample of the data you can obtain:

https://www.smartcarofamerica.com/forums/f170/smart-ev-battery-test-units-ready-go-144465/

And here is a thread with the background of these units with more technical info if you're interested:

Battery Management System Interface for smart Electric Drive | Battery Health Check Tool for smart Electric Drive (model 451)

Len
2014 EV Coupe 17,000 miles
2014 EV Cabriolet 8,000 miles

 

[lebikerboy]

Are you still considering making it available for the 453?

 

[jimsokoloff]

Are you still considering making it available for the 453?

The same hardware is (overwhelmingly likely) going to work on the 453, but the code is different. The original author of code (odyssey) now has an electric 453 and was working on a new system for that model.

Because of this question, I checked on the status of that project, and it seems like he's finished it and confirms on his documentation that it uses the same hardware (as I expected).

I've got a colleague with a 453 smart that's his wife's daily driver, so I've asked him and he's agreed to bring it in on Monday; I'll update one of our boxes to the 453 code and verify that it works. Once that's verified, we could just as easily offer the 453 version. (It's not possible to have one box work for both models at the same time, but you can freely re-program them from one to the other and back again if you happen to own both or be friends with someone with the "other" model electric drive.)

 

[jimsokoloff]

Been a busy week at work, so it took until today before I got a chance to go out and check the battery unit on my colleague's 453. Worked great.

I'm going to work on the code a bit over the Christmas break and we should have units ready to go for the 453 sometime in January. Same hardware, therefore same price as the 451 unit. (451 units are available now as per @sokoloff's post above.)

To make it easier on us keeping track of what unit is what, I'd sure like to make a version that works on either, but based on the amount of code, I don't think I'm going to be able to pull that off... Stay tuned for how that plays out.


Sample report below from the 453:
Astute observers will notice that the 453 has 96 individual cells while the 451 has "only" 93.
This report shows a battery that's healthy and nicely balanced (low deltaV, relatively tight grouping of voltages, and tight clustering of cell capacities).

-----------------------------------------
--- ED4 Smart CAN  --  EV Diagnostics ---
--- v0.5.5                            ---
-----------------------------------------
Connect to OBD port - Waiting for CAN-Bus
.CONNECTED
-----------------------------------------
Get data .......OK

-----------------------------------------
ODO  : 3684 km, Amb.T: 5.1 degC
-----------------------------------------
SOC  : 83.0, 82.8 % = 13.42 kWh = 85 km
rSOC : 81.2, 83.2, 83.9 %
HV   : 380.4 V, -0.53 A, -0.20 kW
LV   : 13.4 V, 1.3 A, 17 W, 9 %
EV   : ON, HV ON, 83.0, 41.5, 17.5 kW
-----------------------------------------
ENTER command (? for help)
CMD >>all
Get data ....................OK

---->>BMS Status<<-----------------------
ODO  : 3684 km, Amb.T: 5.1 degC
-----------------------------------------
SOC  : 83.0, 82.8 % = 13.42 kWh = 85 km
rSOC : 81.2, 83.2, 83.9 %
HV   : 380.4 V, -0.53 A, -0.20 kW
LV   : 13.4 V, 1.3 A, 14 W, 9 %
EV   : ON, HV ON, 83.0, 41.5, 17.5 kW
-----------------------------------------
SOH  : 99.0%, OK
Y/M/D: 2018/2/21
BCS  : W+AC, BHS: W+PTC
HW: 7899014200 SW: 7899023601,04640000
ID: 6993R4DA13983R,6993R4DA13983R
-----------------------------------------
CV mean  : 3953 mV, dV = 30 mV
CV min   : 3938 mV, LIM: 2504 mV
CV max   : 3968 mV, LIM: 4194 mV
Ri in,out: 138, 138 mOhm
Balancing: 4E00, XOR: 0
-----------------------------------------
HV contr.: ON
Cycles   : 199254 of 200000
DC iso.  : >10000 kOhm, MF:11000

---->>Battery T/degC<<-------------------
mean: 9, min : 9, max : 10
M 1:  9, 9, 9, 9, 9, 9, 9, 9, 9
M 2:  9, 9, 9, 9, 10, 10, 9, 9, 9
M 3:  9, 9, 9, 9, 9, 9, 9, 9, 9

---->>Battery C/Ah<<---------------------
Measured : 55.453, 55.453 (SOH), 
Estimate : 0.517 of 0.600, 4 day(s)
Capacity : 55.444 (LIM), 55.444 (EST)
-----------------------------------------
# ;mV  ;As/10
01;3961;20012
02;3962;19961
03;3960;20014
04;3964;19950
05;3963;20003
06;3963;20003
07;3961;19985
08;3965;19949
09;3965;19950
10;3963;19956
11;3964;19985
12;3966;19971
13;3962;19981
14;3964;19965
15;3961;20041
16;3964;19929
17;3962;20061
18;3961;20105
19;3962;20064
20;3962;20073
21;3961;20046
22;3960;20045
23;3961;20049
24;3961;20042
25;3962;20033
26;3963;20050
27;3962;20066
28;3963;20064
29;3960;20093
30;3961;20036
31;3961;20052
32;3961;20065
33;3960;19953
34;3939;20042
35;3961;19976
36;3962;19967
37;3962;19935
38;3961;19957
39;3961;19956
40;3961;19939
41;3960;19983
42;3961;19995
43;3962;20026
44;3963;19944
45;3961;19988
46;3961;20035
47;3960;19983
48;3959;19983
49;3963;20016
50;3959;19987
51;3960;19975
52;3960;20023
53;3963;19965
54;3962;19945
55;3961;20015
56;3959;19971
57;3962;19986
58;3962;20016
59;3961;19953
60;3960;19987
61;3960;19995
62;3962;19996
63;3961;20006
64;3963;20008
65;3961;20011
66;3962;19966
67;3961;19945
68;3961;20013
69;3959;19976
70;3962;19981
71;3960;19961
72;3961;19989
73;3961;19972
74;3961;19990
75;3962;19985
76;3961;19959
77;3961;19989
78;3961;19996
79;3961;19967
80;3961;19947
81;3968;19984
82;3961;19986
83;3960;20007
84;3965;19967
85;3963;20009
86;3963;20036
87;3964;19983
88;3966;20031
89;3960;20030
90;3966;20019
91;3963;20037
92;3967;19988
93;3963;20037
94;3969;20015
95;3964;20037
96;3967;19963

---->>Cell Statistics<<------------------
CV mean : 3962 mV, dV= 30 mV, s= 3.04 mV
CV min  : 3939 mV, # 34
CV max  : 3969 mV, # 94
-----------------------------------------
CAP mean: 19999 As/10, 55.6 Ah
CAP min : 19929 As/10, 55.4 Ah, # 16
CAP max : 20105 As/10, 55.8 Ah, # 18
-----------------------------------------
Voltage Distribution (dV= 30 mV)
*------------------------>---[==]---<---*
3939   00 > [3961; 3961; 3963] < 03  3969
min         [p25; median; p75]        max
-----------------------------------------
Get data OK

---->>OBC Status<<-----------------------
EVSE status: 0 A, State: E
Cable code : -
Charger max: 32 A, State: STBY
AC L1: 0.0 V, 0.0 A, 0 Hz
AC R1: 0.00 kW, R2: 0.00 kW, max: 0.00 kW
DC HV: 0.0 V, 0.00 A
DC LV: 13.6 V

---->>OBC T/degC<<-----------------------
In     : 8
Intern.: 9
Out    : 8
Coolant: 8
-----------------------------------------
Get data OK

---->>TCU Status<<-----------------------
Date/Time : 2018/12/20 20:09:11 UTC
RSSI      : -91 dBm, 40%
State     : CN
NetType   : 3G
Network   : AT&T
SMS count : 0
-----------------------------------------
CMD >>

 

[Yinzer]

Astute observers will notice that the 453 has 96 individual cells while the 451 has "only" 93. This report shows a battery that's healthy and nicely balanced (low deltaV, relatively tight grouping of voltages, and tight clustering of cell capacities).

Also, the cells themselves have higher capacity - 55 AH versus never more than about 52 AH for the 451.