Speaker creates distorted sound on certain battry level acer

The problem started with my speakers sound being distorted when connected to the charger for a few seconds. If I disconnect it from the charges, the sound would get back to normal. After a while, I disconnected my battery and the problem was gone. The sound worked fine with the charger being connected when there was not a battery connected to my Acer laptop. Then I bought a new battery and connected it and the problem was back. The sound would go interrupted and after some minutes totally gone when I connect the charger. Recently, the problem expanded to even when the charger is not connected

Question by dana darvishzadeh on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.