Cigarette lighter voltage meters

  • Thread starter Thread starter Gsbrryprk8
  • Start date Start date
  • Replies Replies 3
  • Views Views 886
Gsbrryprk8

Gsbrryprk8

Member
I see a lot of plug-in cigarette lighter voltage meters for sale, which give a digital readout of the 12V battery voltage and often have 1 or 2 USB ports too.

I’m interested in people’s experience with these devices. Has anyone out there with an electronics background had a look at one? Are these safe to keep plugged in (one buyer review shows a blown capacitor)? Do they draw a phantom current while the car is off? Are they accurate?


Sent from my iPhone using Inside EVs
 
I use them in both of my cars. They work well, and good to know the SOC of your battery, and when it is charging.
 
I have one, and it reports the same voltage as OBD2. I don’t believe it can draw any power when the car is off. Mine shows cabin temperature too.
 
You must log in or register to reply here.
Back
Top