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Silver Oxide (SR) and Alkaline batteries (LR) are commonly used in watches, clocks, timers, calculators, laser pointers, toys, and LED "blinkies". Batteries that meet the IEC 60086-3 standards for watch batteries carry a "W" suffix. The functional differences between silver oxide and alkaline are:
SR44 silver oxide batteries can be used to replace the following:
AG9/SG9, LR45, 194/394, and 6135-99-782-4675 (NSN)(S) batteries. All have dimensions of 9.5 mm diameter and 3.6 mm height. The alkaline varieties have mAh 48 and the silver oxide varieties have mAh of 55-70.
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