2 x Duracell MN9100 LR1 N Alkaline Batteries 1.5V 910A E90 N KN AM5 UM5 4001 5000394203983 | eBay
ANSMANN LR1 1.5V Alkaline Battery [Pack of 1] N/MN9100/E90 Ideal For Clocks, Pagers, Sat Navs, Calculators, Thermometers, Flashlights, Garage Door Openers and Many More: Amazon.co.uk: Electronics & Photo
One (1) x Duracell LR1 N KN MN9100 E90 4001 AM5 910A Alkaline 1.5v Battery - Used in Clocks, Calculators, Fishing Bite Alarms etc. : Amazon.co.uk: Electronics & Photo