Allowable input voltage of the Battery Tester

Allowable input voltage of the Battery Tester

Question

What happens if 500V DC is input to the BT3554?

Answer

The fuse blows at +/-110V DC or 80V AC (50/60Hz) on the BT3554.
For your reference, the  previous model 3554's fuse blows at less than 100V DC.

However, please pay attention not to apply high voltage for your safety.