Thanks! I appreciate your inputs Just took a service appointment to get the Battery Pack Capacity readout. My dealer is convinced that the "test" that I am asking for is part of the US PDI procedure, but not the Canadian one rolleyes. Fellow Canadians (and other interested in trans-border issues), did you also have to deal with that? Is there any chance of getting a Canadian version of the document? As previously expressed here, I will simply switch dealer if mine does not speak the "Clarity" language. Any advice in the Montreal GTA?
US PDI or not, it is a Honda Clarity and that information is there and you need it for warranty. The only difference is you can get a battery warmer. The IPU is identical otherwise. Good luck!
Just back from the dealer - got the report, free of charge. They "warned" me that, next time I buy a Clarity(!), they will have to charge me for such a test as it is not in the Canadian PDI procedure ... Seriously?
@Francofun - Does the Canadian version of the Clarity have the same warranty as the US version (8 year, 100K mile)? Edit: Just answered my own question. I found the warranty on a Canadian Honda site, and it is the same (8Y / 160,000 km)
Charging for that report with an under warranty vehicle is insane. Now, if you are asking about it for a car you are not buying, then yes - I understand. However, I would find another dealer asap if their "pre-owned" department makes such a statement. It very literally takes 5 minutes. Several of us are still working on a way to get that data with an inexpensive off the shelf OBDII scanner. I would recommend complaining to Honda Canada about this as I truly doubt something similar to the US PDI is not in the dealer network in Canada. It is something coming from the manufacturer - Honda, in Japan - not any local or regional office. The OEM is tracking pack stability against the cell OEM for a reason. Sorry, very annoyed with dealers on this point.... Cheers, Cash
Does the dealer have to fully charge the battery before they do the capacity test? That might explain some of their reluctance to do this - especially if they do not have level 2 charging or EVSE's other than the one in the car.
So, I decided to pay $25USD to gain access to the Canadian service bulletins for 24h (yep, I paid in USD for the Canadian info - and the US info as well). There is a Canadian equivalent (in both FR and EN) to the 2018 PDI document posted here. It indicates how to perform the test (exact same procedure), but does not indicate that the result is part of the PDI. The 2019 edition of the PDI document does not mention battery pack capacity at all. There is no 2020 PDI document whatsoever! For copyright reasons, I cannot post the docs here. Send me a private message if you want me to read you excerpts Sent from my iPhone using Inside EVs
Although I do not have proof, it is my belief that the HV battery capacity is a parameter that is continuously maintained by the BMS system (not a function of the current charge level). The dealer simply has to connect to the OBD2 connector and press a couple of buttons to query the value. I think it is not so much a reluctance as an ignorance. Of course there are also unscrupulous dealers that want to nickel and dime you for everything. They should certainly do this test for free if the car is already in there for something else anyway.
It would have been easy for Honda to include the battery capacity test on the list of steps to be performed during the US PDI, but they did not. Honda created confusion by including the test on the last page of the PDI document without explaining why it was there. If Honda wanted to make it clear the test was not part of the PDI, they should have described it in a separate document.
I concur with MrFixit that the batteries do not need to be fully charged. On the document provided by Francofun it shows the total battery voltage at 328.4 and the cell voltages at 3914mV & 3905mV, for the 2 modules. It lists both as Module A and should probably read Module A and Module B. Sometimes I wonder how Honda can make reliable cars and how the dealer service departments can keep them running. The cell voltages, translated to volts, are 3.914V & 3.905V. Multiplied by 84 cells gives us 328.4V, which is shown on the document. They seem to have provided an average for the 84 cells. I believe we have seen some BCT reports with all 168 cell voltages displayed. Targeted cell voltage for a full charge is 4.09xx. Nominal voltage is 3.7. Just a guess on low voltage cut off would be ~3.0. The belt and suspenders method of determining battery capacity is a timed load test. The service is clearly not doing a load test in 5 minutes with a diagnostic tool.
I guess next time I go for my annual oil change I'll ask for it. Cause never got it... Speaking of oil change, there's no way to check the Maintenance Minder via the app, right?
