LR43 VS LR44
LR43 has the same voltage, diameter, and mA-hr as LR44, but it is 1.2mm thinner. Basically, if you can put the batteries into the battery compartment (same number, polarity, etc.) and make excellent contact, your gadget should operate. With LR43, the gadget will last less time than with LR44.
Related info:https://www.utmel.com/componen....ts/lr43-battery-1-5-
https://www.utmel.com/productd....etail/murataelectron