Duracell Plus Power 9V PP3 6LR61 Alkaline Battery - Single

The Duracell Plus Power 9V PP3 (6LR61) is a single alkaline battery designed for devices that require sustained low-to-moderate current draw over extended periods. The battery fits the standard PP3 form factor with snap terminals and delivers reliable power to smoke alarms, wireless microphones, guitar effects pedals, and medical devices including thermometers and blood pressure monitors.

Designed to operate in temperatures from -20°C to 54°C, the battery maintains stable output across UK seasonal temperature ranges and can also power devices stored in unheated outbuildings or vehicles during winter. The Plus Power range sits in the mid-tier of Duracell's alkaline battery lineup, offering longer runtime than standard zinc-carbon 9V batteries while remaining more economical than Duracell's premium Procell or Industrial ranges.

The battery chemistry uses an alkaline manganese dioxide formulation, which provides better energy density and shelf life than older zinc-carbon designs. Duracell rates the Plus Power range with leak prevention technology to reduce the risk of electrolyte leakage during discharge or storage, though no battery chemistry can entirely eliminate leak risk if the cell is over-discharged, physically damaged, or stored beyond its use-by date. The battery is also known by alternative codes 6LR61, MN1604 and 1604A, which refer to the same chemistry and form factor.

How long does a 9V battery last in a smoke alarm?

Battery life in a smoke alarm depends on the alarm model and how often it self-tests. Most modern smoke alarms will run for 6-12 months on a 9V alkaline battery before the low-battery warning chirp begins. Replace the battery when the chirp starts rather than waiting for the battery to fully deplete.

Can I use this in a guitar effects pedal?

Yes. Guitar effects pedals typically draw 5-50mA depending on the circuit design and number of active components. A 9V alkaline battery will power most analogue overdrive and distortion pedals for 10-50 hours of playing time, while digital delay or multi-effects units may drain faster.

What does PP3 mean?

PP3 is the IEC designation for the 9V battery form factor with snap terminals. 6LR61 refers to the same physical battery using alkaline chemistry (LR = alkaline, 61 = the specific 9V size). These codes are interchangeable when searching for replacement batteries.

Are 9V batteries rechargeable?

This Duracell Plus Power battery is single-use alkaline and cannot be recharged. Rechargeable 9V batteries exist in NiMH chemistry, but they deliver a lower nominal voltage (8.4V vs 9V) and may not suit all devices that are voltage-sensitive.