Amazon.com: Amazon Basics Single 9 Volt High-Performance Lithium Battery, 10-Year Shelf Life, Long Lasting Power : Health & Household
VARTA Lithium 9V Block 6LR61 Batteries (1-pack) - ideal for digital cameras, toys, GPS devices, sporting and outdoor applications: Amazon.co.uk: Electronics & Photo
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
9 V Rechargeable Batteries with Long Service Life, 9 V Lithium-ion Batteries, Capacity 800 mAh, 3 Pack with Quick Charger, maxlithium: Amazon.de: Elektronik & Foto