firstly, its not a good practice to use it like that as ur battery will degrade quicklyHi,
I have a Mojo Always connected to a USB charger because I use the Mojo as a desktop DAC.
So the battery is FULL.
After 20-30 minutes of using the Mojo, I hear a whistle-hum sound from the Mojo (similar to the sound-whistle that I hear when the Mojo is in the last part of a charge).
Some of you using the Mojo like me (Always on charge, for desktop use) has the same issue?
Could I solve changing the charger (it's a good Anker 4A) for something else?
Could I solve using a powerbank instead of a charger?
ur usage is similar as mine as i use mojo as desktop dac last year. Simply open the 8 penta screw and disconnect the battery terminal wire. I practice that and even after 7 month the battery is good as new, easily last 8-9 hour