PP3 LR22 MN1604 6LR61. 9V block alkaline battery.
ANSMANN 9V Block Battery [Pack of 1] Long Lasting Low Self Discharge Rechargeable Square 9V E-Block 200mAh NiMH MaxE Pro Batteries for Microphones, Multimeters, Clock Radios, Walkie Talkies, Toys
4-Pack 9v rechargeable batteries, 1300mAh 9 volt rechargeable USB C 9v block battery smoke detector for fire alarms, warning alarms & smoke detectors, multimeters
GutAlkaLi Batteries 9V Block Battery, 6 pieces, Longlife Power for Smoke Detectors, Fire Alarms, Microphone 6LR61 6F22 PP3 MN1604
2 x VARTA 9V Super Heavy Duty Batteries Zinc - 6LR61 PP3 LR22 HR9 R9 E-BLOCK B1
VARTA 9V Super Heavy Duty Battery Zinc - 6LR61 PP3 LR22 MN1604 HR9V R9 E-BLOCK
ANSMANN 9V Block Batteries [Pack of 4] 300mAh NiMH Precharged Rechargeable 9V E-Block Battery for Walkie Talkies, Speakers, Microphones, Multimeters, Clock Radios, Remote Control Cars, Toys