Hi Kish. As always thanks for posting the data.Back in 2018 I commented
So there are a few possibilities about your new battery pack.
1. It is a brand new pack identical to the original. These had a total capacity of 30.5kWh, and a usable capacity of 27kWh.
2. It is a new pack that has been sitting in a warehouse for a year or more. It may have lost some capacity from the total but it still has a usable capacity of 27kWh. In a month or two there may be a sudden drop in the deterioration numbers as the BMS calibrates. You still have the 27kWh usable capacity and SOH=100%, but during the time it was stored it lost some capacity from the 10% buffer. This is often the case with new cars that have been sitting on dealer lots for a year or more.
3. It is a refurbished pack. They have found 'good' modules from broken batteries and put them back into a 'new' battery. I think this is unlikely because the labor cost involved is probably higher than just giving you a new battery.
4. It is a brand new pack based on the new 30kWh design that has been software limited to 27kWh. This would be the best for you. You still only have a usable capacity of 27kWh. But that will last a lot longer than usual because you will have a much larger buffer. I think this is currently less likely. But in future they will surely run out of the original packs, and they will have to do something like this.
I now think you got option 1. Your pack had a substantial buffer which had to be lost before any deterioration in usable capacity was lost. After three years you have now reached that point.
The original invoice you got shows the part number 37510-E4000. This is the code for an original new pack with 96 of the original E375 cells. (i.e. option 1)
Some other owners in the US have got re-manufactured packs. These have the code 37510-E4000-Reman (i.e. option 3)
Option 4 is what most replacements in Europe and South Korea are now getting. But it is not exactly what I guessed back then.
Instead I would rewrite the last option above as
4. It is a brand new pack based on the newer E400 cells which are used in the 30kWh design. The pack has 96 of the newer more energy dense cells (not 100 like the 30kWh cars). This pack shows the part number 37510-E4250
I have one of these new packs. I am reporting the details here :- Analysis of a replacement battery.
Please keep reporting it will be interesting to have more data on this pack.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.