Set the multimeter to “2V” in the DC (direct current) range. Almost all portable electronics use direct current), not alternating current. Connect the black probe to the battery’s ground or ‘-‘ and the red probe to power or ‘+’.

What does DC mean on a voltmeter?

In any case, here’s a rundown of what each symbol means on my multimeter: Direct Current Voltage (DCV): Sometimes it will be denoted with a V– instead. This setting is used to measure direct current (DC) voltage in things like batteries. Alternating Current Voltage (ACV): Sometimes it will be denoted with a V~ instead.

Is voltmeter AC or DC?

The main key difference between DC voltmeter and AC voltmeter: The measuring quality is the crucial factor that differentiates DC voltmeter and AC voltmeter. The DC voltmeter measures the DC voltage but the AC voltmeter measures the AC voltage.