PriceCompass
Duracell MN21 12V Alkaline Battery x 2 S5738 S5738

Duracell MN21 12V Alkaline Battery x 2 S5738 S5738

Duracell

Duracell MN21 12V Alkaline Battery x 2 S5738 S5738

Model S5738

Best price

£2.58atBlueperry agriculture (UK)Lowest we’ve seen
4 retailers comparedSave £1.37 vs the dearest

Where to buy

Retailers stocking this product, cheapest first
RetailerPriceAvailabilityVisit
Blueperry agriculture (UK)Cheapestchecked an hour ago£2.58In stockVisit Blueperry agriculture (UK) (opens in a new tab)
Boxed2mechecked 8 days ago£2.93In stockVisit Boxed2me (opens in a new tab)
Blueperry Tool & Builders Merchants (UK)retailer's price from 16 Jul 2026£3.60In stockVisit Blueperry Tool & Builders Merchants (UK) (opens in a new tab)
Tooled Upchecked an hour ago£3.95In stockVisit Tooled Up (opens in a new tab)

Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.

Price history

Full price history

This is the lowest price we have recorded. If you were waiting for a drop, this is it.

£2£3£424 Aug 202616 Oct 2026
Cheapest price across all tracked retailers. Lowest recorded: £3 on 1 Sept 2026.

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About this product

The Duracell MN21 is a 12V alkaline battery designed for devices such as wireless remote controls, wireless doorbells and security systems including alarms and locators. It is also compatible with equipment specifying A23 or LRV08 battery types, making it a straightforward replacement for maintenance and installation work. It uses Duralock Power Preserve technology, giving a guaranteed in-storage shelf life of up to 5 years, so the batteries remain ready for use in infrequently used devices. Sold as a pack of two.

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