Best 18 Volt Replacement Battery Deals Online in the UK (10 Deals Found)

Last Updated - 01/02/2026 Sort By:

Best Choice
Waitley

New
Upgraded 5.0Ah Replacement 18V Battery for Makita, Compatible with Makita 18V Battery Lithium ion BL1850 BL1850B BL1840
High-Capacity Battery: This 18V battery pack boasts an impressive

£22.03 £27.98
Bonadget

New
2X 18V 6.0Ah replacement for battery for Dewalt 18V XR DCB182 DCB184 DCB200 DCB184 DCB101 DCB107 DCB112 DCB105 DCB115 DC
🔋【Product Details】100% Brand New | Voltage: 18V MAX| Battery Type: Li-ion

£43.99
Best Value
Hofosi

New
2X 18V 8000mAh Replacement for Makita 18V Batteries Compatible with Makita Battery BL1860 BL1860B BL1850B BL1840 BL1830
【Replacement for Makita Battery】: Battery type: lithium-ion Voltage: 18V Capacity: 8.0Ah/8000mAh Quantity: 2 X replaceme

£33.99 £39.99
Uionvot

New
5500mAh Replacement for Makita 18v Batteries - Li-Ion Tool 18V Battery for BL1830B BL1850 BL1850B BL1840 BL1840B BL1830
Battery Capacity: Battery Type: Li-ion | Voltage: 18V | Battery capacity: 5.5Ah | Replace for Makit battery 18v. With 5.

£45.99
15% Off
Bonadget

New
2X 18V replacement for battery for Dewalt 18V XR DCB182 DCB184 DCB200 DCB184 DCB101 DCB107 DCB112 DCB105 DCB115 DCB203
🔋【Product Details】100% Brand New | Voltage: 18V MAX| Battery Type: Li-ion

£42.49 £49.99
15% Off
Bonadget

New
2 Pack 5.0Ah BL1830 Replacement Battery Compatible with Ma-kita 18V Batteries BL1850 BL1830 BL1850B BL1860B BL1860 BL183
【Product Information】 Battery type: Lithium-Ion | Voltage: 18V | Capacity: 5000mAh / 5.0Ah | Package includes: 2x 5000mA

£33.23 £39.09
Powtree

New
2X 18V 5000mAh Ni-MH Replacement for Battery PA18 1834 1822 1823 1835 8391D 192827-3 192829-9 193159-1 193102-0 192826-5
【BATTERY SPECS】Battery Type: Ni-Mh, Capacity: 5000mAh, Voltage: 18 Volt, Package Include: 2 X Batteries Replacement for

£39.99
Powtree

Used
2X 18V 5000mAh Ni-MH Replacement for Battery PA18 1834 1822 1823 1835 8391D 192827-3 192829-9 193159-1 193102-0 192826-5
【BATTERY SPECS】Battery Type: Ni-Mh, Capacity: 5000mAh, Voltage: 18 Volt, Package Include: 2 X Batteries Replacement for

£32.63
GGiking

New
2X18V 8.0Ah DCB182 Replacement Battery for Dewalt 18V Battery XR DCB182 DCB184 DCB200 DCB184 DCB101 DCB107 DCB112 DCB105
Replacement for Dewalt Battery: Battery type: lithium-ion || Voltage: 18V || Capacity: 8.0Ah/8000mAh || Quantity: 2 x re

£39.99
15% Off
Drrivotk

New
2 Pcs 18V 5500mAh/5.5Ah Batteries Replacement for Makita Battery 18V for Makita Batteries BL1850 BL1830 BL1860B BL1860 B
【Product Specification】Battery type:Lithium ion, Capacity:5500mAh, Voltage:18V. Replacement for makita 18V battery, perf

£40.78 £47.99

10 18 Volt Replacement Battery deals are available from: Amazon stores, starting from £22.03.
The biggest discount we found is 21% on Upgraded 5.0Ah Replacement 18V Battery for Makita, Compatible with Makita 18V Battery Lithium ion BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815 LXT 18V tools with LED Indicator at Amazon.
The lowest price we found is £22.03 while the highest is £45.99.
Prices for the best 18 Volt Replacement Battery deals average at £37.51.
Last updated on February 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for 18 Volt Replacement Battery.