LR936 battery: equivalents & specs
The LR936 is a 1.5 volt alkaline button cell measuring 9.5 mm across and 3.6 mm tall, also sold as AG9, LR45 or 194. The matching silver-oxide cell is the SR936, found at watch counters as the 394, with the 380 as its high-drain variant.
Same battery, other names
Every code below is the exact same cell as LR936. Any of them will fit and work identically.
Compatible replacements
- SR936 / 394: Silver-oxide equivalent (394 is the SR936SW low-drain cell, 380 the SR936W high-drain one) with about 70 mAh in the same case.
Buying and replacement notes
The AG9 is a middle child of the button-cell world: less common than the AG3 or AG13 but a regular fitment in mid-size quartz watches. As always in this family, the silver-oxide 394 is what a watchmaker will fit, and it delivers about 70 mAh at a rock-steady 1.55 V against roughly 55 mAh of sagging output from the alkaline.
Commonly used in
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⚠️ Keep away from children. Swallowed button batteries, especially 20 mm lithium coins, cause severe injury within hours. If a child swallows one, call the 24/7 National Battery Ingestion Hotline (US) at 800-498-8666 or poison control at 800-222-1222 immediately. What every parent should know.