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Partially Charged 12 volt battery status in app

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Old Jan 24, 2023 | 11:11 PM
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2025 E53 Hybrid
Partially Charged 12 volt battery status in app

While installing the 12 volt accessory socket in the center console of my EQS SUV the past two days the doors were open for several hours. When I finished the project today I noticed that the phone app was indicating that the "Starter Battery" was Partially Charged. Pressing the info button while the battery status was Partially Charged displayed a warning that the car might not start if not charged. Normally, the info message tells you that the main purpose of the 12v battery is to start the engine. :-)

I drove the car for 20 miles and the Starter Battery status has changed to Charged in the app. I wish there was a 12 volt battery status indication on the dashboard. The Taycan displayed the voltage level, usually around 13.5v.


After doors were open for several hours.


After 20 mile recharging trip.
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