Duracell Plus Power 9V Battery (6LR61)

This is a single Duracell Plus Power 9V alkaline battery, the rectangular block cell with the two snap terminals on top. Its full code is 6LR61, also carried on the pack as MN1604, and the 6 at the front of that code is literal: a 9V of this type is six 1.5V alkaline cells stacked in series inside one shell. Alkaline chemistry is single use, so this is a cell you fit and replace rather than one you charge. The retail pack prints a 100% life guaranteed claim, marked with an asterisk that refers to the manufacturer's own terms.

The 9V is the odd one out in a battery drawer: almost nothing portable uses it, and almost every smoke alarm does. It is the cell behind standalone smoke and heat alarms, wired alarm panels and door contacts, guitar and bass effects pedals, active pickups, radio microphones, multimeters and test meters, and older wireless doorbells. Because so many of those sit on a ceiling or behind a rack, people tend to buy 9V cells ahead of need rather than at the moment an alarm starts chirping. If you are replacing one, check the old cell for 6LR61, MN1604 or PP3 printed on the side; all three name the same size and shape.

One unit of this listing is one battery, so the number you order is the number of cells you receive. The minimum order is 10, sold in multiples of 10, which suits a landlord, a maintenance cupboard or a studio going round every pedal board at once. The terminals push on in one orientation only, so there is no wiring to get wrong. It sits alongside the other Duracell cells we stock, including CR2032 and CR1620 lithium coin batteries and LR44 alkaline coin batteries.

Which devices take a 9V battery?

Smoke and heat alarms are the most common, followed by alarm panels, guitar effects pedals, active pickups, radio microphones, multimeters and some older wireless doorbells.

Are 6LR61, MN1604 and PP3 the same battery?

Yes. They are different naming systems for the same rectangular 9V cell, so a device asking for any one of those three takes this battery.

Can this battery be recharged?

No. Alkaline cells are a single use chemistry, so fit it, run it down and replace it. Rechargeable 9V cells are a separate product type.

How many batteries do I receive, and why is the minimum order 10?

One unit of this listing is one battery. We sell these in multiples of 10 units, so the smallest order is 10 separate cells.

Does the manufacturer state a shelf life for this cell?

No shelf life figure is stated for this listing, so we quote none. Alkaline cells are best kept in a dry drawer at normal room temperature.

Which way round do the terminals go?

The snap connector only mates one way, since the stud and socket on the cell are different sizes. Push it home firmly until it clicks flat.