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My Ac/dc adaptor for my R/C boat is making this buzzing or humming sound when i plac it in the socket, it make the sound before i attach the battery pacj for charging and after attaching the pack the

Company name is Huazheng Electronic, model is CH-4116D input is ac 220-240v 50/60hz.

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I have exactly the same adapter and it literally burnt out and I mean burnt out. Luckily I was at home but if I hadn't been god knows what would have happened. I have seen a German site which states that this adapter should have been withdrawn...but admittedly this was the 2 pin version.. I seriously think you should watch yours very very carefully.

Posted on Sep 22, 2017

  • Geoff Bury
    Geoff Bury Sep 22, 2017

    I forgot to add that I was using it to charge a R/C Boat as wrll

  • Geoff Bury
    Geoff Bury Sep 22, 2017

    I forgot to add. I was charging up my son's remote controlled boat which I am guessing is the same as yours

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If it is charging properly I would not worry about it. Chargers are a device that ALWAYS make noises, there just often out of our range. If it is making a VERY loud noise, then I would suggest locating a replacement power supply.

Posted on Jan 05, 2014

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