Amazon.com: LIONX Battery for Audio Recorder Fit Model MP-GT1 Part Number E01587110A BP-L1C-22 CS-TDR200SL Capacity 2600mAh / 9.62Wh 3.7 v Lithium-ion Color Black : Electronics
Tascam, Mp-gt1 replacement battery
CS 3400mAh Battery For Tascam BP-L1C-22 E01587110A MP-GT1