12V battery and charging problem

[Jean-Claude-Duvalier]

I'm having trouble with my 12V battery. It keeps dropping below 75% and I'm worried about affecting updates. Anyone know the ideal SOC for receiving updates?

Also, I'm wondering if leaving the car running in the garage with an L2 charger plugged in will fully charge both the 12V and the main battery. Tips would be great!

 

[ConciousCalis]

Battery needs for updates can vary - some are more demanding than others. Typically, aiming for 80% charge is a good rule of thumb. However, if your battery is worn out, 80% might not be enough. The exact need can vary depending on how your battery’s doing.

For your second question: Yup, it can take over 12 hours to fully charge the 12V battery. Just plugging it in won’t cut it - you’ll need to keep the car running.

 

[Evholic_18]

My dealer told me to have the battery above 75% state-of-charge whenever I am receiving an update.