Energizer Max 9V Batteries (PP3) - 2 Pack

This is the Max alkaline 9V from Energizer, supplied two cells to a card. The 9V block is the odd one out in a battery drawer: rather than a cylinder with a flat base, it is a rectangular body with a stud and a socket side by side on the top, which clip into a matching press connector. Nothing else fits that clip. Nine volts from a single unit also saves a holder full of smaller cells. The chemistry is alkaline, and the retail pack prints a five year shelf life.

Most homes have at least one thing that takes a 9V. Smoke alarms use them, either for the whole supply or as the backup on a mains unit, and so do many carbon monoxide alarms. Beyond safety kit they turn up in multimeters, guitar pedals, radio microphone belt packs and older test gear. Buying a pair rather than a single suits anyone who would rather not hunt for a replacement at midnight, and it works for a landlord, a school or a studio keeping spares. A 9V carries both terminals on the same face, so keep the spare sealed in its card rather than loose in a drawer with keys and coins.

One unit of this listing is a card of two cells, and the minimum order is 12 units sold in multiples of 12, so a first order brings 24 cells. The five year shelf life printed on the pack is the figure to note if you are buying ahead: left sealed somewhere cool and dry, cells bought now are still worth fitting in a few years. The manufacturer states no capacity figure, weight or cell dimensions. This listing sits alongside our wider Energizer range, which runs from AAA, AA, C and D cells through coin cells to a single pack 9V in the Alkaline Power range.

Is a 9V the same thing as a PP3?

Yes. The rectangular nine volt block is commonly listed as PP3, and both names describe the same cell with the press stud connector on top.

Will these suit a smoke alarm?

A 9V alkaline is the usual fit for any alarm that specifies a 9V cell. Check the alarm first, because some sealed units carry a built in cell that is not meant to be replaced.

How many cells do I actually receive?

One unit of this listing is a card holding two cells. The minimum order is 12 units in multiples of 12, so the smallest order brings 24 cells in total.

How long will they keep before I fit them?

The pack prints a five year shelf life. Leave the card sealed and keep it somewhere cool and dry, and cells bought today are still worth fitting well ahead.

Can these be recharged?

No. Alkaline cells are single use and should go to battery recycling once flat. Rechargeable 9V cells use a different chemistry and are labelled as rechargeable on the cell itself.