Question: are ag10 and ag13 batteries the same?
Answer: No; they have the same diameter but AG10 is thinner (about 3.1 mm vs. about 5.4 mm for the AG13). As a result the AG13 has a little over twice the capacity of the AG10. ... The alkaline equivalent of the AG10 is LR54 or LR1131; the alkaline equivalent of the AG13 is LR44 or LR1154.