Is the Procell PC1500 the same as a retail Duracell AA?

No. Procell is Duracell's professional line, sold in bulk industrial packaging. The cells are alkaline AA at 1.5V and 2850mAh, but the line is positioned for business use rather than retail packs.

How many batteries come in the case?

144 AA cells. That is 12 dozen, enough for offices, facilities or shared equipment.

Are these batteries rechargeable?

No. They are disposable alkaline manganese dioxide cells. Do not put them in a charger.

What devices are these suited for?

Standard AA devices: remotes, flashlights, clocks, mice and keyboards. The 2850mAh capacity handles everyday high-drain use, and the cells work from -4°F to 130°F.

How should I store a case this size?

Keep cells in a cool, dry place within the -4°F to 130°F range and away from metal that could short the terminals. Alkaline cells lose charge slowly in storage, so use the oldest first.

Is the per-battery price better than retail packs?

Usually yes, since bulk cases are priced per cell below retail AA multipacks. Check the current case price against local multipack prices before ordering.