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18V Spare Batteries

Keep your tools powered with 18V spare batteries from leading brands such as Black+Decker, Stanley Fatmax, Einhell, and Bosch. Choose from compact or high-capacity lithium-ion options, twin packs, and starter kits (with chargers included). Compatible with popular drills and garden gear, these rechargeable batteries help you get jobs done efficiently.

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270 products
McGregor 18V 2Ah Lithium Battery
Rating 5.0 out of 5, from 2 reviews
£20.00

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McGregor 18V Battery Charger
Rating 5.0 out of 5, from 1 reviews
£10.00

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eufy Doorbell Spare Battery
Rating 4.9 out of 5, from 33 reviews
£29.99

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McGregor 18V 2.5Ah Lithium-ion Battery
£25.00

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Einhell Power X-Change 18V 2.5Ah Battery and Starter Kit
Rating 4.5 out of 5, from 8 reviews
£31.00
Free Delivery

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Einhell Power X-Change 18V 4.0Ah Battery and Starter Kit
Rating 5.0 out of 5, from 3 reviews
£41.00
Free Delivery

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McGregor 18V 5.0Ah Lithium-ion Battery
£45.00

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McGregor 18V 4.0Ah Lithium-ion Battery
£35.00

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Makita 3.0Ah Li-Ion Battery - 18V
£84.00
Free Delivery

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Einhell Power X-Change 18V 4.0Ah Sealed Rechargeable Battery
Rating 5.0 out of 5, from 3 reviews
£57.00
Free Delivery

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Einhell Power X-Change 18V 4.0Ah Battery - Pack of 2
Rating 4.5 out of 5, from 2 reviews
£70.00
Free Delivery

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Einhell Power X-Change 18V 4.0Ah Battery And Charger Kit
Rating 4.5 out of 5, from 2 reviews
£87.00
Free Delivery

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Einhell Power X-Change 18V 5.2Ah Rechargeable Battery
Rating 5.0 out of 5, from 1 reviews
£63.00
Free Delivery

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Einhell Power X-Change 18V 5.2Ah Battery - Pack of 2
£118.00
Free Delivery

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Einhell Power X-Change 18V 3.0Ah Sealed Battery
£47.00
Free Delivery

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Duracell Optimum Alkaline AA Batteries - Pack of 4
Rating 4.8 out of 5, from 1608 reviews
£5.75

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Duracell 2032 Lithium Coin Batteries 3V (CR2032) - Pack of 2
Rating 4.8 out of 5, from 1273 reviews
£5.00

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Duracell Plus Power Boost AA Batteries - Pack of 8
Rating 4.9 out of 5, from 468 reviews
£9.00

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Duracell Optimum Alkaline AAA Batteries - Pack of 4
Rating 4.8 out of 5, from 1379 reviews
£5.75

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Energizer Ultimate Lithium AA Batteries 4 Pack
Rating 4.9 out of 5, from 36 reviews
£9.00

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Duarcell Plus Powerboost AAA Batteries - Pack of 8
Rating 5.0 out of 5, from 469 reviews
£9.00

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Duarcell Plus Powerboost AAA Batteries - Pack of 4
Rating 4.9 out of 5, from 477 reviews
£5.00

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Duracell Plus Alkaline 9V Batteries - Pack of 2
Rating 4.9 out of 5, from 255 reviews
£6.50

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Energizer Max Alkaline AA Batteries - Pack of 12
Rating 4.9 out of 5, from 104 reviews
£10.50

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Ring Smartcharge4 6/12v Smart Battery Charger
Rating 4.7 out of 5, from 70 reviews
£30.00

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Duracell 2032 Lithium Coin Batteries 3V (CR2032) - Pack of 4
Rating 4.8 out of 5, from 1259 reviews
£8.00

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Duracell 2450 Lithium Coin Batteries 3V (CR2450) - Pack of 2
Rating 4.9 out of 5, from 128 reviews
£5.00

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Argos Home Alkaline AA Batteries - Pack of 4
Rating 4.4 out of 5, from 11 reviews
£2.50

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Energizer Ultimate Lithium AA Batteries 2 Pack
Rating 4.7 out of 5, from 759 reviews
£5.00

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Duracell 2025 Lithium Coin Batteries 3V (CR2025) - Pack of 2
Rating 4.7 out of 5, from 304 reviews
£5.00

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Duracell Plus Alkaline C Batteries - Pack of 6
Rating 4.7 out of 5, from 459 reviews
£12.50

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Duracell Plus Power Boost AA Batteries - Pack of 12
Rating 4.9 out of 5, from 483 reviews
Save 25%
£8.40

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Streetwize 6 Amp Heavy Duty Automatic 12V Battery Charger
Rating 4.2 out of 5, from 552 reviews
£25.00

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Argos Home Ultra Alkaline AA Battery - Pack of 24
Rating 4.8 out of 5, from 331 reviews
£10.00

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Energizer Max Alkaline C Batteries - Pack of 4
Rating 4.8 out of 5, from 18 reviews
£8.50

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Energizer Alkaline Power AA Batteries - Pack of 24
Rating 4.8 out of 5, from 415 reviews
£13.00

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Energizer Max Alkaline AAA Batteries - Pack of 12
Rating 4.8 out of 5, from 37 reviews
£10.50

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Argos Home Ultra Alkaline AAA Batteries - Pack of 24
Rating 4.8 out of 5, from 214 reviews
£10.00

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Argos home Alkaline AAA batteries - Pack of 8
Rating 4.4 out of 5, from 9 reviews
£4.50

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Duracell Plus Powerboost AAA Batteries - Pack of 12
Rating 5.0 out of 5, from 480 reviews
Save 25%
£8.40

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Duracell Specialty Alkaline AAAA Battery 1,5V - Pack of 2
Rating 4.8 out of 5, from 174 reviews
£4.00

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Energizer Max Alkaline D Batteries - Pack of 4
Rating 5.0 out of 5, from 41 reviews
£8.50

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Ring Smartcharge6 6/12v Smart Battery Charger
Rating 4.8 out of 5, from 49 reviews
£40.00

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Argos home Alkaline AAA batteries - Pack of 4
Rating 4.3 out of 5, from 8 reviews
£2.50

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Duracell Optimum Alkaline AA Batteries - Pack of 12
Rating 4.8 out of 5, from 1608 reviews
£13.50

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Duracell Plus Alkaline 9V Battery - Pack of 1
Rating 4.8 out of 5, from 524 reviews
£5.00

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Duracell Plus Alkaline AA Batteries - Pack of 12
Rating 4.8 out of 5, from 325 reviews
Save 20%
£6.80

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Energizer Extreme AA Rechargeable Batteries Pack of 4
Rating 4.8 out of 5, from 219 reviews
£15.50

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Duracell Plus Alkaline C Batteries - Pack of 2
Rating 4.7 out of 5, from 462 reviews
£5.25

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Energizer Max Alkaline AA Batteries - Pack of 8
Rating 4.8 out of 5, from 86 reviews
£7.50

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Duracell High Power Lithium 123 Battery (CR123A) Pack of 2
Rating 4.7 out of 5, from 98 reviews
£10.00

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Ring Smartcharge8 12/24v Smart Battery Charger
Rating 4.5 out of 5, from 31 reviews
£50.00

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Argos Home Alkaline AA Batteries - Pack of 8
Rating 4.6 out of 5, from 12 reviews
£4.50

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Duracell Plus AAA Batteries, pre-charged - Pack of 4
Rating 4.8 out of 5, from 477 reviews
£12.75

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CLEARANCE BADGE
Duracell Plus Alkaline AAA Batteries - Pack of 12
Rating 4.9 out of 5, from 193 reviews
Save 20%
£6.20

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Energizer Alkaline Power AAA Batteries - Pack of 24
Rating 4.8 out of 5, from 227 reviews
£13.00

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Duracell 2430 Lithium Coin Batteries 3V (CR2430) - Pack of 2
Rating 4.9 out of 5, from 44 reviews
£5.00

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Argos Home Alkaline AA Batteries - Pack of 12
Rating 4.5 out of 5, from 13 reviews
£6.00

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Energizer Rechargeable Power Plus AAA Batteries - Pack of 4
Rating 4.7 out of 5, from 273 reviews
£13.00

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Duracell Rechargeable AA Batteries, pre-charged - Pack of 4
Rating 4.7 out of 5, from 245 reviews
£16.50

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