Hi, received my Powerhandle last week and have been testing it out. A brand new set of 2800mAh rechargeable batteries gave me 6hr 45 minutes of constant run time which i’m very happy with.
However I have noticed something odd. When listening with headphones, when I adjust the LED/button brightness to it’s medium setting I am hearing a quite noticeable constant whine sound. It vanishes if the LED is set to Low or High. It’s not super high either, it’s like middle C type range. Anybody else hearing this issue? It doesn’t happen using the normal power adapter, only with the batteries. Thanks.
