As I found in the docs shared by @Atkinson and posted previously, both our batteries are supposed to be tested per the 13 page Pre Delivery Inspection Sevice Bulletin 17-093 dated 1/25/18. I went back to my dealer and had them measure my Li-ion Battery Pack Capacity signal. As you can see, at 6 months of ownership, it reads 54.3 Ah and 320 volts which is ~17.4 kW. I didn’t get a reading at delivery but supposedly ours is rated nominally at 55 Ah at 17 kW. I hope those who have this metric from their PDI will share so we can know approximately what the value is at the start of ownership. Assuming my battery started at 55 Ah (which I don’t know) and after 6 months lost 0.7 Ah (55-54.3) then it has lost 1.27%, extrapolated to ~2.5% or 1.4 Ah per year. The PDI states the cut off for replacement under warranty is reduction to 36.6 Ah capacity. So then if the loss of capacity is linear (which I also don’t know), then at this rate it would take 13 years to reduce to 36.6 Ah ([55-36.6]/1.4). Again that’s with a lot of assumptions; especially not having the starting Ahs. At the current time and at 54.3 Ah, I am getting a consistent 62 to 64 EV range estimate with temps in the 80s to 90s and ac set to 72 to 74 and speeds under 60. I don’t run the battery down to 0 (2 bars) because my trips are local and I don’t want the ICE to run. However my EV range is pretty consistent with the odometer and is usually just 2-3 miles per charge optimistic. So at 54.3 Ah, I’m beating the Mulroney sticker stats by a good bit: EV range high high 50s to say 60 w ac vs 47 (but will have to average with lower winter range to come)(was high 60s w no ac) 3.9 to 4.3 miles/kW 132 to 146 MPGe vs 110 23.2 to 25.6 kW/100 miles vs 31 But all the above are a factor of driver and driving conditions. I need anyone who got a Battery Pack Capacity measurement with their PDI at purchase or a later one (with number of months owned) to share on this thread so I can try and figure out how this battery pack behaves and how well my dealer took care of it before I drove it off. If I’m reading this right, it looks like my battery is OK. Thanks in advance and PS: Will the Clarity Brain Trust please check my math and assumptions and chime in with additional insights. I’m a bio guy; all this EE is getting over my head.