Amazon.co.jp: SZEMPTY 9V Lithium Rechargeable Battery, Lithium Ion USB 6F22 Charger, 650 mAh High Capacity, 2 in 1 Type C Charging Cable, 1.5 Hours Fast Charging (2 x 9 V Rechargeable Batteries) : Computers
9V Rechargeable 200mAh 100%PeakPower NiMH Batteries - Pack of 8
Amazon.co.jp: MXBatt USB Rechargeable 9V Rechargeable Battery, 006P Type, 6F22, Rectangle, 9V, 6P, Lithium-ion, 650 mAh, 1.5H Rapid Charging Battery with USB-C Cable, Can Be Charged 1,500 Times, No Charger Required (1