[Canadanno]

I was getting 17 miles at a full plug-in charge when I bought the car in early 2021. I'm now routinely getting 14 miles on a full charge. Has anyone else seen a degradation like this? What max miles per charge are others seeing?

[Tenknots]

It’s going to vary depending on climate, terrain, speed, and drive style. I’ve also found that the estimated miles are rarely accurate. I’ve seen 14 miles as well as 27. I live several hundred feet elevation above my town so I use very little charge coming down and can get well over 20 miles routinely. In winter it’s maybe 30% less.

I expected to get 17-20 and mostly do so I’m happy. I’ve found I can do something of a reset by driving in battery saver mode only, until the engine starts. The mileage estimator usually shows significantly more after doing that.

There is a way you can run a BMW car data report that will show the current battery capacity (among a hundred other things). I’ve forgotten how I did it but I think I logged into my BMW account on my computer and discovered it.

Keep in mind that miles is a pretty useless metric because of all the variables. I had a Chevy Volt for years and it would tell me how many KWh I used before the engine started, which is the only way to know how much power you get out of your battery. Sadly, BMW doesn’t have that.

[veloso77]

Originally Posted by Canadanno

I was getting 17 miles at a full plug-in charge when I bought the car in early 2021. I'm now routinely getting 14 miles on a full charge. Has anyone else seen a degradation like this? What max miles per charge are others seeing?

Mine is 2021 X3 30e with 38k km (~23.6k miles) used pretty much on a daily basis. I have not seen an battery degradation so far. As mentioned, eletric range varies for several reasons.

Couple of observations from my case:
1) on average I get around 36km (22 miles);
2) on summer it drops down to 32km (20 miles);
3) on autumn and winter I get up to 37-40km (23 - 25 miles)
4) always use per-climatizarion
5) one day I tested the car to see the maximum it could get and drove it on a highway at around 90km/h (56 mph) on cruise control and I got a stomping 50km of eletric range

Finally I read somewhere that that software control doesn’t allow the battery to degrade quickly so that’s why they can offer 8 years guarantee on batteries. It works like this: battery has some extra beef not used that it gets freed as it gets old. In other words you always have “100% capacity” as firstly you can use 20-120, then 18-118, then 10-110. The battery is decaying but software manages to give you the 12kWh (100%) capacity that they told you. On top of that the electronics of car preserve battery degradation as well.

Anyway, that’s what I have learned driving this car for 2 years now.

[JOE YOUNG]

Originally Posted by Canadanno

I was getting 17 miles at a full plug-in charge when I bought the car in early 2021. I'm now routinely getting 14 miles on a full charge. Has anyone else seen a degradation like this? What max miles per charge are others seeing?

Have my 30e LCI for a year and a half with just over 15k. Lowest I had full charge was 19miles, highest was 28 once. Today was 23miles @ 16C.

[eindbaas]

Are you able to share the battery capacity of your car? That makes more sense for the comparisons as driving ranges are heavily influenced by the driving style and weather conditions.

My 2020 X3 30e is now at a 9.1 kWh capacity* with 50k km (31k miles). I understood the gross capacity is 12 kWh and net capacity of the new model should be 10.8 kWh. Does this mean it “lost” 15% of its capacity in over 3.5 years? I’m getting on average 35 km (22 miles) on a full charge.

*You can retrieve this information by requesting BMW CarData.

[ECinEI]

Originally Posted by eindbaas

Are you able to share the battery capacity of your car? That makes more sense for the comparisons as driving ranges are heavily influenced by the driving style and weather conditions.

My 2020 X3 30e is now at a 9.1 kWh capacity* with 50k km (31k miles). I understood the gross capacity is 12 kWh and net capacity of the new model should be 10.8 kWh. Does this mean it “lost” 15% of its capacity in over 3.5 years? I’m getting on average 35 km (22 miles) on a full charge.

*You can retrieve this information by requesting BMW CarData.

My wife drives a 2020 30e and I requested the BMW CarData as above and found her car at full charge has an "energy content of the high-voltage battery" of 7.02 kWh. Not entirely sure what that means however.

Her estimated range is generally 15-17 miles and on under good conditions (warm and flat terrain) the car actually gets about 20-21 miles on a full charge.

[Dezinerdude]

Downloaded the BMW Cardata for my 2021 X3 30e that has about 55000 miles on it….it shows
Energy content of the high-voltage battery 7.14 kWh

[eindbaas]

I’ve found out that 12 kWh is the maximum capacity. 10.8 kWh is EU/rest of world usable capacity. 9.09 kWh is U.S./Canada usable capacity. The higher the amount, the more miles you can get out of the battery.

@ECinEI, for your wife’s car it can mean a battery depreciation of 23%. She’s still getting a good amount of miles out of the battery. However this can fluctuate due to temperature conditions. Mine was in August for example 1 kWh lower compared to now.

@Dezinerdude, for you the difference is 22% and this can still fluctuate.

I assume both of you have the US/Canada models?