Review on 💻 IdeaPad Laptop Charger 65W 45W AC Adapter for Lenovo Laptop 110 110s 120s 130s 310 330S 320 330 510 510s 520 710s Yoga 710 Flex 14 14iwl Laptop Power Supply Cable by Chantel Cooper

I just got my charger and the first time I plugged it in there was this piercing hiss. I don't know if this is normal or could indicate a future malfunction, but I'm hoping it's just a quirk that will work eventually as I've only just started using it. To be honest I'm afraid to leave my laptop alone while it's charging because I don't want it to catch fire or anything while I'm in another room. It only seems to make a high-pitched noise when the laptop is asleep, but it makes an almost entirely faint hiss when my laptop is awake. It does seem to charge my laptop though, so that's a good thing. I have Lenovo Idea 110.