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Hi, I bought a MeatPi to monitor my 2024 PHEV in Homeassistant. While in Startmode and charging it show battery voltage 14V+, but when the car is in idle the voltage drops pretty quick to 12V and after that below 12V. Does this mean my 12V battery is weak or is this by design. I read that if it drops below 10V the car might not start. Please advice, rather spend the money upfront then having to get towed after.
Cheers Rene
P.S. I unplugged at 11.89V not to drain the battery any further.
Low battery voltage
