Maxell SR44W（S76、357）1.55V酸化銀電池

My glucose monitor has been giving accurate readings consistently since I swapped to these batteries. The zero-mercury construction gives me peace of mind, and the 1.55V output keeps my calculator running strong.

Swapped this into my glucose monitor and it's been reading steadily for three weeks now, no low-battery flicker like the old one gave me. Nice that it's mercury-free too, since I toss these pretty often.

Swapped these into my glucose monitor and it's been rock solid for three months now, still reading accurately. The silver-oxide chemistry really does hold voltage better than the cheap alkalines I used before. Zero mercury is a nice bonus too.