Voltmetras 8-16 voltų stiprintuvui 12V & 12/24V

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.