Description
This is one Energizer Alkaline Power 9V battery, supplied as a single cell on a blister card. The 9V is the small rectangular block with both terminals on the same face, two snap studs that clip into a matching connector, and the trade code for it is PP3. Alkaline is the chemistry here, the general purpose choice for this size. One unit of this listing is one cell rather than a multipack, which is the thing worth checking before you order.
Nine volt cells do a narrow but important set of jobs around the home. Smoke alarms and carbon monoxide alarms take them, and those are exactly the devices you want a fresh cell in rather than a half used one from the back of a drawer. Beyond alarms, the size turns up in guitar pedals and active pickups, in wireless microphone belt packs, in multimeters and moisture meters, and in older radios. If an alarm has started chirping at you every minute or so, that chirp is the low battery warning, and a new cell is the fix.
Alkaline cells are best kept somewhere cool and dry at ordinary room temperature, sealed in the card until the moment you need one. The retail pack is printed with a 5 year shelf life, so a spare bought today is still worth having long after the fitted cell has gone flat. Two habits are worth keeping: never pair a fresh cell with a part used one in a device that takes more than a single battery, and take spent cells to a collection box at a supermarket or recycling centre rather than putting them in the household bin. This listing is sold in multiples of 12, which suits a landlord, an office or a household with several alarms and detectors to keep stocked, and a labelled drawer of spares turns the next chirp into a two minute job.
Specification
| Size |
9V |
| Chemistry |
Alkaline |
| Voltage |
9V |
| Codes |
PP3 |
| Pack quantity |
1 cell |
| Shelf life as printed |
5 year shelf life, as printed on the retail pack |
| Sold as |
Single cell, one per blister pack |
| Minimum order |
12, sold in multiples of 12 |
Frequently Asked
Is this the same thing as a PP3 battery?
Yes. PP3 is the trade code for the rectangular 9V cell with two snap studs on the top face, and this is that cell.
How many batteries do I actually receive?
One unit of this listing is a single cell on a blister card. The minimum order is 12 units, so the smallest order is 12 separate single packs.
Will it fit my smoke alarm?
If the alarm compartment has the two stud snap connector and the alarm is described as taking a 9V or PP3 cell, this is the correct size for it.
How long can I keep a spare before I use it?
The retail pack states a 5 year shelf life. Leave the cell sealed in its card, somewhere cool and dry at normal room temperature, until you need it.
Can I recharge it?
No. Alkaline cells are single use, so once the battery is flat it should be replaced and the old one taken to a battery recycling point.
Can I mix it with a battery already in the device?
Better not to. In any device taking more than one cell, fit a full set of fresh cells of the same size and chemistry together.