I am using an aftermarket DC plug and measured the voltage with a multimeter and it only puts out 2.4 volts? I have checked my Bluetti supplied cig plug and it puts out 12 volts. The only thing I can think is the aftermarket plug has an led lamp and a resistor that draws a couple of milliamps or that the regulated dc plug circuitry is restricting the voltage? Help please!
Check the aftermarket plug resistance from the input to the output side with an Ohm Meter. Another possibility is that it is a poor quality plug and the dimensions are not right. Have you checked it in your car cigarette lighter plug?
Hi Ben: First off thanks for your help and suggestions. I tried it in the car and sure enough 12 volts. The plug is plenty big enough I could hardly remove it from the car. The one odd thing is that the led light in the cig plug didn’t light plugged into the car. I have an ohm meter but do I have to take the cig plug apart to check the resistance? Thanks again for the help.
I have an adaptor that has two wires on the output, so I am able to check it. Maybe your adaptor is different. It is possible that it is just a cheap aftermarket product. Mine is cheap, but at least it works.
Hi Ben sorry for the tardy reply. I’ve contacted Bluetti. I checked the output with the bluetti cig plug and it puts out 12 volts. I have the cig plug with the 2 ring connector ends and 10 awg wire but I have to think it’s the led light and resistor in the circuit? Thanks again for the help.
It sounds like it is just a bad connection or connector. LED’s typically draw 10 to 20mA. It should have no effect. The Cigarette lighter output is 12V at 9A. Maybe something is loose inside your adaptor. I am not sure about yours, but some of them have internal fuses.