Battery capacity drop after 5 years

I’m not very sophisticated with measuring my battery’s parameters but my vehicle with similar use levels to yours last week gave me 31 miles. It was warm, but not warm enough to turn on the AC. This seemed similar to what it was when I purchased the car over 4 years ago.

 

11% seems about right

 

I’m definitely interested in this issue. No clear evidence yet that the estimated full-charge EV mileage is reduced in my 2 year old, low mileage PP.

Are there others out there who can report on their experience with older, higher-mileage PP’s?

Cheers.

 

My 148k km (92k miles) Prime shows a range of 42 km (26 miles) but I hardly drain it all while staying in EV (I either do short EV drives or long ones requiring the engine and highway driving). The other day though I almost drained it all while doing city driving (max 70 km/h). When I got back home, I was at that 42 km and still had 15% left in the battery, giving me an extrapolated range of 48 km (30 miles). Previous owner had a consumption of 2.6 L/100 km (90 mpg) for the car's first 136k km (85k miles) while I averaged a consumption of 1.8 L/100 km (130 mpg) for the 12k km (7.5k miles) I added to it.

 

If it helps, I still have my 2018 in use and at over 80,000 Kms, I continue to get the same range in the summer and winter months as I did in its first year (63+ and 38+ respectively). Since the majority of the driving remains 99.9% city, my lifetime fuel economy is 0.1 L/100km. Similarly, the lifetime efficiency with electrons is 11.7 Kwh/100kms.

However, I also see a larger number of battery modules now with a voltage delta of 0.02 (or larger) than I did in the first year. I perform a battery test every 6 months.