MC-101: Battery Life for Continuous Use August 13, 2021 02:23 Updated Follow The following is the continuous operating time when the MC-101 is running on batteries.- This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use. Alkaline battery (AA, LR6): Approx. 3 hours Ni-MH battery (AA, HR6): Approx. 4.5 hours Related articles MC-101: Is it OK to connect USB while the power is on? MC-101: Can I play the sound engine of the MC-101 from an external MIDI keyboard? MC-101: How long can a sample be loaded into a tone track or a drum track? MC-101: What format and length of sample can be loaded into a looper clip? MC-101: Auto Channel