What is the difference between an LR44 and AG13 battery?

Battery LR44 (AG13) alkaline NEDIS BAAKLR4410BL 10pcs / blister

V13GA LR44 AG13 A76 Alkaline Battery Energizer 357/303 (LR44 SR44 AG13) 3Pk

LR44 AG13 357 A76 303 SR44 1.5V Button Cell Batteries for thermometers 6pcs

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PAIRDEER Super Alkaline LR44 AG13 - 1.5V

Alkaline button cell battery LR44 / AG13

TONSY LR44 / AG13 / 357A / A76 / SR44 1.5v Button Cell - Pack Of 30 Battery - TONSY

AG13 Alkaline Watch Batteries – Batteries and Butter

20x LR44 AG13 303 357 Coin Button Cell 1.5V Battery for Camera Microphone, Watch

40PC AG13 LR44 1.5V Battery L1154 RW82 RW42 SR1154 SP76 A76 357A Button Cell Batteries Camera Remote Control battery - AliExpress

Everything You Need To Know About The LR44 Battery

LR44 Battery, LR44 Battery Equivalent, A76 Battery