The most popular identification for this size of battery is D, however it is also known as MN1300, LR20, R20,  E95, 4020, 813, 13A,

Alkaline Long-lasting, dependable power for your everyday devices. Ideal for toys and games, remote controls, flashlights and smoke detectors.

D - MN1300 - R20-95

D-LR20-MN1300 DURACELL PLUS

£2.10

D - MN1300 - R20-95

D-LR20-MN1300 DURACELL ULTRA

£2.70

D - MN1300 - R20-95

D-LR20-MN1300 ENERGIZER MAX

£2.75