Can someone explain Rayovac alkaline battery model codes? Shelf life, versus use by date, versus 10 year guaranteed freshness?

[Werner]

How much batteries do you plan storing and how much does this cost you?
Wouldn’t it be more clever to get a dozen eneloops and a charger?
You would always have fully charged batteries with unlimited storage time(I don’t know how long eneloops last but there are some people still using the early models)
Or do you just buy them in bulk and use them in your devices to cycle them, with just a bufferstorage in case

I once seen a sheet from energizer or so in which they specify how fast they loose charge and it was considerably slower on less temperature, so the fridge idea is good.

Edit:
It was a Duracell sheet

Alkaline cells have long shelf storage life. After one year of storage at room temperature, cells will pro- vide 93 to 96 percent of initial capacity. When stored for four years at 70°F (21°C), service of about 85 percent is still attainable. Storage at high temperatures and high humidity will accelerate degradation of chemical cells. At low temperature storage, the chemical activity is retarded and capacity is not greatly affected. Recommended storage conditions are 50°F (10°C) to 77°F (25°C) with no more than 65 percent relative humidity.
Figure 11 compares various DURACELL® zinc anode systems and the effect of temperature on capacity retention. At room temperature, the alkaline system loses approximately 5 percent capacity after one year of stor- age. Subsequent capacity loss is approximately 2 percent per year. By comparison, zinc-carbon cells lose nearly
15 percent capacity per year at room temperature. As the temperature elevates, capacity losses increase. At temperatures above 113°F (45°C), the regular zinc-car- bon cells will be completely discharged within one year, whereas the alkaline system will still retain approximately 80 percent of its original capacity.

Even the number written down are not 100% matching the graph so it seems to be always a rough estimation:
So at room temperature you will get 13loss after 5 years and 23 loss after ten years. If you store them colder like you plan I see no problem storing them for a decade…