Maxell 366 SR1116SW 15 Batteries

Please keep these and all shiny child-attracting small batteries out of the reach of children; batteries are dangerous if swallowed.

Dimensions: 11.6mm Diameter x 1.6mm Height

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Maxell 366 SR1116SW is completely interchangeable with S R 1116 W 3 6 5

Do not use (inherently low performing) alkaline batteries in place of silver oxide in any timepiece: alkaline have declining power output.

Made in Japan
Genuine Maxell Hologram Anti-Counterfeit Packaging (other package is not genuine)

Mercury Free
This is a primary non rechargeable disposable battery

The 366 is a long life silver oxide chemistry with non-declining power output; alkaline batteries of the same 1.5 voltage start at 1.5 and at the half life are at .8 volts, silver oxide start at 1.55 volts and maintain the voltage until expiring. This is why silver oxide batteries are always used in watches, insulin pumps and sniper scopes or mission critical situations. Never use alkaline batteries for any device requiring a steady constant voltage. A watch with declining voltage may not be dependable.

This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S16/S35, Energizer 366, Energizer 365, Energizer 366/365, Energizer 365/366, Union Carbide 366, Union Carbide 365, Union Carbide 365/366, Union Carbide 366/365, UCAR 366, UCAR 365, UCAR 366/365, UCAR 365/366, Eveready 366, Eveready 365, Eveready 366/365, Eveready 365/366, Citizen 280-46, Duracell D366, Duracell D365, Duracell D366/D365, Duracell D365/D366, Mallory D366, Mallory D365, Mallory D366/D365, Mallory D365/D366, Gold Peak GP66, Sylva-Cell GP66, Maxell SR1116SW, Maxell SR1116W, Panasonic SR1116SW, Panasonic SR1116W, National SR1116SW, SR1116W, Rayovac 366, Rayovac 365, Rayovac R318, Renata 366, Renata 365, Seiko SR1116SW, Seiko SR1116W, Seiko SR/TR1116W, Sony 366, Sony 365, Sony SR1116SW, Sony SR1116W, Toshiba SR1116SW, Toshiba SR1116W, Toshiba W0S, Varta V366, Varta V365.

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Fits and replaces: