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Replacement Batteries for Smoke Alarms

Most smoke, heat, and carbon monoxide alarms with replaceable batteries, often need replacing every 12-18 months depending on how many times it is activated and tested. Replacement smoke alarm batteries are often specified by the manufacturer, which can be found in the user manual and the back of the alarm.

Alkaline and lithium batteries are suitable for most alarms found around your home, it is important that alarms are in full working order so that they can properly detect fire and carbon monoxide and therefore protect your home, family, and friends against these threats.

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Image of the GP Long Life Lithium Battery

GP Long Life Lithium Battery

  • Long life Lithium 9V battery
  • Suitable for smoke alarms and CO alarms
  • Capacity 800mAh
4.6 out of 5 stars

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Now: £9.06 inc VAT

£7.55 ex VAT

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Image of the 9V Duracell Procell Alkaline Battery

9V Duracell Procell Alkaline Battery

  • 9V Alkaline Battery
  • Suitable for smoke alarms and 9V products
  • Low cost replacement battery
5 out of 5 stars

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Now: £3.99 inc VAT

£3.32 ex VAT

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Image of the Energizer Ultimate Lithium AA Battery

Energizer Ultimate Lithium AA Battery

  • 1.5V AA lithium batteries
  • The longest-lasting AA batteries available
  • Upgrade from standard alkaline AA batteries
  • Leak-free guarantee
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4.4 out of 5 stars

£3.23 inc VAT

£2.69 ex VAT

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Image of the Easichange Smoke Alarm Removal & Replacement Tool

Easichange Smoke Alarm Removal & Replacement Tool

  • Designed to work with leading brands
  • Double-headed screwdriver design
  • Ballpoint pen built-in for convenience
  • Suitable for most push-to-fit smoke and heat alarms
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5 out of 5 stars

£4.07 inc VAT

£3.39 ex VAT

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What kind of battery does a smoke detector take?

What kind of battery does a smoke detector take?

The specification of battery required by any type of smoke alarm can be found in the user manual. It is very common that user manuals, after installation, are often thrown away. However, if the smoke alarm has a replaceable battery, this information can also be found on the back of the alarm when taken off the base plate. The use of the battery which has not been specified by the manufacturer, could damage the smoke alarm or even mean that the alarm does not function as it should.
How to replace a smoke alarm battery?

How to replace a smoke alarm battery?

Most smoke alarms with a replaceable battery, will have a battery compartment. When taken off the base plate, a battery compartment will be visible. The battery compartment may have a lid or the batteries may be instantly visible. If there is no compartment lid, the batteries can be taken out and replaced. If there is a compartment lid, this will need to be removed before the old batteries can be taken out, and the new ones can be inserted. Once the smoke alarm batteries have been replaced, the alarm can be reinstalled onto its base plate on the ceiling.

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