SR44 and LR44 / AG13 / LR41 share similar diameters but differ in thickness and capacity: SR44 is 11.6 mm × 5.4 mm at 1.55V with 175 mAh.
The holder decides: use exactly the size that closes freely — forcing a thicker or thinner cell damages both battery and device.
Both are available on our model pages with individual packing data; for a mixed assortment quote, contact our team.
