I have an IP43 charger and when the charging output is between 40-50 amps it is very buzzing sound. When it goes below 30 amps, it starts to disappear. Is this normal condition when charging at almost full power?
asked
Buzzing IP43
Yes its normal and nothing to worry about.
I have the same charger and have used it as a power supply for many hours continuously with close to full current output.
The charger will derate power/current in the event that the internal temperature is excessive.
