High Voltage Battery Warning w/ Reduced Power

DanCoon

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Daniel
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Oct 30, 2020
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Location
Elk Grove, California
Vehicles
Mustang Mach-E Premium
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Government
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Turned on the car yesterday and saw the turtle, wrench, and car with exclimation point yesterday. Noticed that there was reduced power when accellerating but otherwise my car drove just fine. OBDII Scanner showed a fault code of unstable voltage. I forgot to screen shot the error code, but I cleared everything and all seems good right now.

However, I charged to my usual 90% overnight and went for an approximate drive of 10 miles. During the drive the battery percentage went up from 90% to 94%. The most of an increase I've seen is 1% due to the battery warming up during the first 5 minutes of driving.

Any ideas?
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