Voltmetras 8-16 voltų stiprintuvui 12V & 12/24V (4811241, SONIC)
The Sonic booster uses a traditional
voltmeter with a needle where other competing
products use LED lights to show the charging level.
The voltmeter indicates the precise charging level
and can be used to test the proper functioning
of the alternator of the vehicle. The battery of a
booster must reach 13V when it’s recharged and
when it’s connected to the car-battery. The engine
must reach 14,4V because that’s the power your
car alternator must produce.