LR726 battery: equivalents & specs
The LR726 is a 1.5 volt alkaline button cell, 7.9 mm across and 2.6 mm tall, also marked AG2, LR59 or 196. Its silver-oxide counterparts are the 397 and 396 (SR726), which share the exact size and are the standard choice for watches.
Same battery, other names
Every code below is the exact same cell as LR726. Any of them will fit and work identically.
Compatible replacements
- SR726 / 397: Silver-oxide equivalent (397 low drain, 396 high drain) in the same 7.9 x 2.6 mm size.
Buying and replacement notes
Like the rest of the AG series, the AG2 exists mainly to keep manufacturing costs down in disposable gadgets and factory-fresh fashion watches. It works fine in blinking toys and novelty lights. When one turns up in a watch, replace it with a 397 (or 396 for movements with backlights or chronograph motors) and the watch will keep better time for two to three times as long.
Commonly used in
Need a replacement?
Shop LR726 batteries on Amazon →⚠️ 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.