Best Replacement Lithium Ion Battery Deals Online in the UK (10 Deals Found)

Last Updated - 14/09/2026 Sort By:

Best Choice
melasta

New
14.4V 2600mAh Replacement Battery for Ecovacs Deebot N79 N79S DN622 Li-Ion Battery Compatible with Tesvor 500 Eufy RoboV
Battery Technology: 14.4V 2600mAh lithium-ion battery, built-in A+ cells, certified with UL CE UN38.3 MSDS. Size: 71 x 3

£15.29 £17.99
Terratek

New
Terratek 20V 1 Hour Fast Charge Lithium Ion Battery Replacement For TTCGT18, TCSBUN, TTHED18, TBUNHED, TTLRC, TLRSET & T
Terratek Battery: The Terratek battery is perfect for your hedge trimmer, leaf blower or cordless strimmer. Can serve as

£24.99
HshDUti

New
Home and Garden Battery Pack 12/21V 1.5/2.0 Ah Lithium-Ionen Battery, 12/21V Li-ion Battery, Lithium-Ion Battery, Univer
HIGH QUALITY : The 12/21V battery range is lithium-ion which provides fade-free power and virtually no power drain over

£8.39
Maxofpowr

New
2-Pack 5500mAh for Makita 18V Battery, Compatible with Makita 18V LXT Battery, Upgraded BL1850B BL1840 BL1840B BL1830 BL
【Upgrade High Capacity】Battery type: Lithium-Ion | Voltage: 18V | Capacity: 5500mAh | Package includes: 2 x 5500mAh 18V

£36.99
Best Value
Zahala Battery

New
21V Lithium Battery - 4.0 Ah Replacement Battery with Led Indicator Compatible with Leaf Blower and Mini Chainsaw Cordle
【Widely Compatibility】S7 21V battery designed as a universal alternative, this battery seamlessly works with a wide rang

£28.49 £29.99
21% Off
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

£22.02 £27.98
Leisuda

New
Replacement Battery for Vax ONE PWR - 4.0Ah Lithium-ion Battery, Compatible with Models BV25040, BV15030, BV15260, BH152
【Replacement Battery for Vax】Battery Type: Lithium-ion, Voltage: 18V(20V), Capacity: 4000mAh, Includes: 1* BV25040 batte

£32.99 £35.99
15% Off
Waitley

New
Power Elektro 2Pack 5.0Ah Replacement Battery compatible with Makita 18V, Lithium Ion for BL1850 BL1850B BL1840 BL1840B
High Capacity: 5.0Ah lithium-ion replacement battery provides extended runtime and reliable power for your Makita 18V co

£42.48 £49.98
Gemho

New
Gemho 5.0Ah Replacement Lithium ion Battery for Bosch 18V PBA，Compatible with Bosch All 18V PBA battery for all Unlimite
COMPATIBILITY: Compatible with all 18V PBA battery-powered tools from Bosch, all Unlimited series vacuum cleaners,Garden

£28.59
17% Off
FLSTOR

New
FLSTOR Battery for Nintendo DS Lite NDS Lite, 2000mAh USG-003 Battery 3.7V Rechargeable Lithium-ion Battery Replacement
Model Note: This battery is only compatible with Nintendo DSL NDS Lite, not suitable for any other device.

£9.99 £11.99

10 Replacement Lithium Ion Battery deals are available from: Amazon stores, starting from £8.39.
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 £8.39 while the highest is £42.48.
Prices for the best Replacement Lithium Ion Battery deals average at £25.02.
Last updated on September 14, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Replacement Lithium Ion Battery.