What is the expiration date on these batteries?

My set is dated 06-2015. I have used them all but 1 and no problems here.

How can you tell if a silver oxide watch battery is bad before inserting it into the watch?

Use a voltmeter. The battery is kind of small so it may take a little doing but put one metal lead on positive side (+) and one lead on the negative side (-). The voltage is what determines whether the battery is "good" or "bad". On these batteries I think it starts at close to 1.7 volts and will fall from there. Most devices will stop working when the battery drops below 1.0 volts though my old game boy would keep working until about .8 volts and I suspect a watch could take it even lower. It just depends on the device.

Has anyone used these batteries on michael kors watches? i cant seem to find the battery size on google for michael kors watches

I am surprised that Michael Kors watch tech support was unable to assist you. Contact for the US: 1-866-709-5677 or watches@michaelkors.com Contact for Canada: 1-855-898-5677 or service@metroservicecentrecanada.ca Monday - Friday: 8am to 7pm CST Saturday: 9:30am to 6pm CST

ASIN	B002S49V24
Amperage	5 Amps
Antenna Location	Clock
Battery Capacity	27 Milliamp Hours
Battery Cell Type	Silver Oxide
Battery Weight	0.02 Kilograms
Battery capacity	27 Milliamp Hours
Battery cell composition	Silver Oxide
Best Sellers Rank	#7,443 in Electronics ( See Top 100 in Electronics ) #226 in Disposable Household Batteries
Brand	Maxell
Compatible Phone Models	Watch
Customer Reviews	4.2 out of 5 stars 35 Reviews
Item Dimensions	3 x 70 x 50 millimeters
Item Weight	0.01 Pounds
Manufacturer	Maxell
Model Name	377
Model Number	SR626SW5
Number of Batteries	1 LR44 batteries required.
Number of batteries	1 LR44 batteries required.
Recommended uses for product	Clock
Reusability	Single Use
UPC	704740102146 025215741074 762022256307 762022256062
Unit Count	1 Count
Unit count	1 Count
Voltage	1.55 Volts

Maxell 5 Batteries Button Cell SR626SW

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