Hi,
I bought a Panasonic 7.2V battery powered screw driver from Japan. It comes with a 100V input battery charger. My household supply is 230V.
I have a variac that can step down to 100V but when I read the manual, it says do not attempt to use a step down transformer with the battery charger.
Anybody has thoughts why a variac or transformer should not be used?
Is the output of the variac less distorted (sine wave) than a transformer?
Does it make any difference if I plug in the charger first, then turn on the power, then plug in the battery or
plug in the battery into the charger and then into the variac and then turn the power on.
Thanks for your help.
I bought a Panasonic 7.2V battery powered screw driver from Japan. It comes with a 100V input battery charger. My household supply is 230V.
I have a variac that can step down to 100V but when I read the manual, it says do not attempt to use a step down transformer with the battery charger.
Anybody has thoughts why a variac or transformer should not be used?
Is the output of the variac less distorted (sine wave) than a transformer?
Does it make any difference if I plug in the charger first, then turn on the power, then plug in the battery or
plug in the battery into the charger and then into the variac and then turn the power on.
Thanks for your help.