The LR44 is a 1.5 volt alkaline button battery. Size is 11.2mm dia x 5.2mm tall.
X-ref part #s are CR44, SR44, 357, SR44W, AG13, G13, A76, A-76, PX76, 675, 1166a,
LR44H, V13GA, GP76A, L1154, RW82B, EPX76, SR44SW, 303, SR44, S303, S357, SP303,
The 4LR44 is a 6 volt Alkaline battery - GP brand. For multi-purpose applications
(memory, cameras, toys, remotes, dog collars, etc.). Replaces # 476A, A544, PX28A,
PX28AB, V4034PX, A28PX, L1325, and more. Battery is 1" long, and approx. 1/2"