tka Köbele Akkutechnik Block battery: Superlife 9 V block alkaline battery, set of 2: Amazon.de: Electronics & Photo
5X Batterie Lithium 9 Volt Block 1200mAh, 9v E-Block 10 Jahres Batterie ideal für z.B. Rauchmelder, Feuermelder, Messgeräte, Mikrofone u.v.m. AKKUman Set: Amazon.de: Baumarkt
ANSMANN Smoke Detector Battery Replacement [Pack of 2] Square 9V E-Block Batteries For Smoke / Fire Alarm Replacements With 7 Years Life Time, Red: Amazon.co.uk: Electronics & Photo
VARTA Batterien 9V Blockbatterie, 1 Stück, Longlife, Alkaline, für Rauchmelder, Brand- & Feuermelder, Mikrofon: Amazon.de: Elektronik & Foto
GP Lithium 9 V Block Batteries, 9 Volt Lithium Li-MnO2, 10 Year Battery Longlife Ideal e.g. as a Smoke Alarm Battery, for Fire Detectors, Microphones etc: Amazon.de: Electronics & Photo
Best Plug Batterie-Halter für 9V Block Batterien, Lötversion, Schwarz: Amazon.de: Elektronik & Foto
GP Lithium 9V Block Batterien, 9 Volt Lithium Li-MnO2, 10 Jahres Batterie Longlife ideal z.B. als Rauchmelder Batterie, für Feuermelder, Mikrofone etc.: Amazon.de: Elektronik & Foto
Blackube 9 V Block Batteries 5500 mWh 750 mAh Lithium Battery - 1.8 Hours Quick Charge via Micro USB 1000 Cycles for Smoke Alarm Fire Detector Multimeter: Amazon.de: Electronics & Photo
AgfaPhoto 70103 9 V Block 6 LR 61 Battery: Amazon.co.uk: Electronics & Photo
Kratax Battery 9 V block 850 mAh rechargeable lithium-ion batteries. Suitable for multimeters, alarm systems, walkie-talkies etc.: Amazon.de: Electronics & Photo
Varta High energy alkaline manganese 9 V block battery.: Amazon.de: Electronics & Photo
Pack of 4 Shentec 9 V Batteries 800 mAh 9 V Block Batteries Rechargeable Batteries 6F22, Lithium-ion 9 Volt Rechargeable Batteries with Low Self-Discharge and Long Life: Amazon.de: Electronics & Photo