I think so. We have battery capacity readings from a number of Clarity's from all times of year and temperature. If temperature changes cause different readings we would see fluctations in the data and we don't see it.As part of my service today for the fuel pump they are reading the battery capacity. I gave them the information on how to read it from this forum. They still seemed unsure of what it would take. It is very cold here in Illinois today and they wondered if outside temperature impacted the reading. I told them from all I understood it did not, and it was just a reading the vehicle maintained.
Did I instruct them correctly?
Stay tuned! At this point I envision someone with a flashlight looking for the crate market "Clarity Traction Battery" in the warehouse from the last scene of Raiders of the Lost Ark.
Wow, you are very close... It's too bad you don't live in a "California Emissions State" where you would be covered for 150K miles.Any suggestions from those who have more experience with what dealers are likely to do for me?
Wow, you are very close... It's too bad you don't live in a "California Emissions State" where you would be covered for 150K miles.
As far as we know, the value that you read with the ELM device is exactly the same as what the dealer would read.
We really have not heard of very many battery failures here. A couple of posts back, @Thomas Clauser had gotten agreement in principal to have his battery replaced with a value that was slightly above the published threshold. His reading was 38.8, but as of his most recent posting, his dealer had not produced a new battery and I think he had to press the issue before he got 'agreement'. It will be interesting to see how his scenario progresses.
Bottom line - I don't think there are very many who have experiences with warranty replacement... At least, not that we have heard about here.
Here's a chart of the decline in my battery capacity vs. mileage up to my most recent reading at 93,787 miles. For reference, I inserted the 36.6 warranty value at 100K miles to see how that data point would fit the trend. If the capacity keeps declining as it has recently, I may just qualify for a warranty replacement after all.
The number of miles between each capacity measurement varies quite a lot in your case. If the chart doesn't account for this, it can sometimes fool you when trying to interpret a trend... So, I re-plotted your data with a more accurate scale on the X-axis:
View attachment 23990
Even plotted this way, it sure looks like you are headed toward a warranty situation. It will be close, but even if you don't quite make it, I think you have a very strong case and you should fight for it. The fact that you have this data which clearly shows the progression may be valuable if you find yourself in a dispute.
He also said that my 6-yr 120K Honda Care warranty should apply to my car's battery, so it looks like there's a new battery in my future.