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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:
SR54 silver oxide batteries can be used to replace the following:
AG10/SG10/G10-A, LR54, 189/387/389/390, LR1130/SR1130, and 6135-99-796-0471 (NSN)(S) batteries. All have dimensions of 9.5 mm diameter and 2.6 mm height. The alkaline varieties have an mAh 44-68 and the silver oxide varieties have an mAh of 80-86.
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