Stoy333
Active Member
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- Mark
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- Nov 12, 2021
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Hi All,
2021 Awd select
I’ve been waiting a while to post this until I had enough data and time to post it. Starting in August 2025, my battery percentage drops shortly after turning on and driving. I’ve seen it drop anywhere from 2% to 6% after driving less than 3 miles. My max range is 188 per gom 78 degrees out and had not done much highway driving.
Below are some examples of what’s been going on. I thought someone on here might know what’s going on. I have been waiting to take my car in to go over everything at my 60k miles tune up.
8/25/25: charged overnight from about 15% to 60% turned car on this morning (8/25) and drove about .3 miles and went down to 57%. It’s 70 degrees. Drove another 2.5 miles or so and dropped to 55%. By the time I got to work, which is an 8 mile trip (stop and go up to 45 mph with no climate on) I was at 52% SOC. Left work later in the day and got home with 49% going the same route and same temperature as the morning ie about 70f. No preconditioning.
9/22/25: plugged in 16% last night. Pre conditioning is off. Charged to 86%. Turned car on and drove about .2 miles at about 25 mph. Looked down and my battery percentage was 83%. Over the next 10 seconds the percentage dropped to 82% then 81%. Stated at 81% until I drove about another 3 miles. Got to work at 79%.
I RESET MY DRIVE HISTORY AND CHARGED TO 100%
9/26/25: no precondition morning. 58% turned my car in. 56% after backing out of driveway. Got to work at 53%. Got home 49%. Turned car off then on and went up to 50%.
10/8/25: turned car on and was at 60% looked down 2 miles later and was at 57%. No pre condition. Got to work 55%…drove 7 miles on way home 36-45mph and trip mi/kWh said 3.5-3.9 during the whole trip. 64 degrees out used 4% ie home w 51%…turned car on next morning and 52%, got to work at 47%, used 70 degrees auto low for 3 miles of drive 35-50 mph.
10/10- morning 40 degree no pre condition. 42% gom 84. Got to wait to work 38% no ac or heat use gom 82 miles. Drove 8.4 miles, trip 4.4mi/kwh, 5% accessories 11% ext temp. 35-47 mph.
10/12-charged overnight, 63 degrees, drive 1.5 miles no ac and only used the radio and dropped 6% 82-76%.
10/30/25: 8.5 miles morning 5.2kw/mi 46 degree preconditioned no ac and used 3% but had dropped 2% after driving 3 miles.
11/7: Drove 11.6 miles with precondition no ac use 3.5 mi/kwh trip 69% to 62% 52 degrees outside used 6% total.
In summary, I lose battery percentage quickly after turning the car on and beginning my trip. I’m not an aggressive driver and might drive on a highway 1 of 10 trips.
The dealer had put on new tires that are “good” rating (which is another nightmare story…) and also installed wind strips.
What caused my range to drop so much and way does my battery run out faster than before? Less than 60k miles. My trip Mi/Kwh calculates a much different range than the actual battery percentage and gom say. For example, see 11/7. Drove 11 miles and used 6% no heater, preconditioned, battery 66% w 129 range, and mi/kwh was 3.5
sorry for the long post!
2021 Awd select
I’ve been waiting a while to post this until I had enough data and time to post it. Starting in August 2025, my battery percentage drops shortly after turning on and driving. I’ve seen it drop anywhere from 2% to 6% after driving less than 3 miles. My max range is 188 per gom 78 degrees out and had not done much highway driving.
Below are some examples of what’s been going on. I thought someone on here might know what’s going on. I have been waiting to take my car in to go over everything at my 60k miles tune up.
8/25/25: charged overnight from about 15% to 60% turned car on this morning (8/25) and drove about .3 miles and went down to 57%. It’s 70 degrees. Drove another 2.5 miles or so and dropped to 55%. By the time I got to work, which is an 8 mile trip (stop and go up to 45 mph with no climate on) I was at 52% SOC. Left work later in the day and got home with 49% going the same route and same temperature as the morning ie about 70f. No preconditioning.
9/22/25: plugged in 16% last night. Pre conditioning is off. Charged to 86%. Turned car on and drove about .2 miles at about 25 mph. Looked down and my battery percentage was 83%. Over the next 10 seconds the percentage dropped to 82% then 81%. Stated at 81% until I drove about another 3 miles. Got to work at 79%.
I RESET MY DRIVE HISTORY AND CHARGED TO 100%
9/26/25: no precondition morning. 58% turned my car in. 56% after backing out of driveway. Got to work at 53%. Got home 49%. Turned car off then on and went up to 50%.
10/8/25: turned car on and was at 60% looked down 2 miles later and was at 57%. No pre condition. Got to work 55%…drove 7 miles on way home 36-45mph and trip mi/kWh said 3.5-3.9 during the whole trip. 64 degrees out used 4% ie home w 51%…turned car on next morning and 52%, got to work at 47%, used 70 degrees auto low for 3 miles of drive 35-50 mph.
10/10- morning 40 degree no pre condition. 42% gom 84. Got to wait to work 38% no ac or heat use gom 82 miles. Drove 8.4 miles, trip 4.4mi/kwh, 5% accessories 11% ext temp. 35-47 mph.
10/12-charged overnight, 63 degrees, drive 1.5 miles no ac and only used the radio and dropped 6% 82-76%.
10/30/25: 8.5 miles morning 5.2kw/mi 46 degree preconditioned no ac and used 3% but had dropped 2% after driving 3 miles.
11/7: Drove 11.6 miles with precondition no ac use 3.5 mi/kwh trip 69% to 62% 52 degrees outside used 6% total.
In summary, I lose battery percentage quickly after turning the car on and beginning my trip. I’m not an aggressive driver and might drive on a highway 1 of 10 trips.
The dealer had put on new tires that are “good” rating (which is another nightmare story…) and also installed wind strips.
What caused my range to drop so much and way does my battery run out faster than before? Less than 60k miles. My trip Mi/Kwh calculates a much different range than the actual battery percentage and gom say. For example, see 11/7. Drove 11 miles and used 6% no heater, preconditioned, battery 66% w 129 range, and mi/kwh was 3.5
sorry for the long post!
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