Tenergy 9V NiMH Battery, High Capacity 250mAh Rechargeable 9 Volt Batteries for Smoke Detector/Alarms, TENS Unit, Metal Detector, and More (4 Pack) : Amazon.ca: Electronics
Tenergy 9V Lithium Batteries, 1200mah Non-Rechargeable Batteries, 10 Years Shelf Life Lithium 9 Volt Batteries, 4 Pack
Tenergy 9V NiMH Battery, High Capacity 250mAh Rechargeable 9 Volt Batteries for Smoke Detector/Alarms, TENS Unit, Metal Detector, and More (4 Pack) : Amazon.ca: Electronics