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SR64 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:
SR64 batteries can be used to replace the following: SR527SW, SR527, SB-AE/DE, 280-60, V319, 615, GP319, S526E, 319, D319, 319X, 319A, SB-AE, SB-AEDE, SR64, SR527W, LR527, E319. All have dimensions of 5.8 mm diameter 2.7 mm height, and a capacity of 21 mAh.
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