Silver oxide watch batteries have an average shelf life of 2-3 years. After this time they start to lose capacity and so will have a shorter useful life, but if you are replacing batteries in several watches it might be cheaper for you to purchase a pack of 10 batteries, as these are 20% cheaper than buying 10 individual batteries. (10 batteries for the price of 8.)
We also offer mixed packs of the more commonly used watch batteries if you don't require 10 of the same battery.
Packs of 10 batteries maybe supplied as a bag of 10 individual batteries or a strip of 10 blister packed batteries.