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LR44 is an alkaline battery, 1.5v. SR44 is a silver-oxide battery, 1.5v. You should be fine using them.
The difference: as the batteries age, the alkaline battery moves closer to 1.3v before giving out. I've also noted that alkaline batteries tend to corrode before a silver-oxide battery after they are dead. We are talking 5+ years. SO- I would personally have no problem using an Alkaline battery, but be more inclined to replace it more often and not leave it in a camera that sits around unused for a long time.
The difference: as the batteries age, the alkaline battery moves closer to 1.3v before giving out. I've also noted that alkaline batteries tend to corrode before a silver-oxide battery after they are dead. We are talking 5+ years. SO- I would personally have no problem using an Alkaline battery, but be more inclined to replace it more often and not leave it in a camera that sits around unused for a long time.
