This is normal. Power output at battery mode is half of that at A/C power supply. The volume is hence lower when the speaker runs on battery.
Volume is lower when my Philips speaker runs on battery
Published on 2017-02-28
Article Published Date : 2017-02-28
This is normal. Power output at battery mode is half of that at A/C power supply. The volume is hence lower when the speaker runs on battery.