Best Power Tool Batteries & Chargers — 40V Charger (2026)
1 power tool batteries & chargers matching capacity “40V Charger”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Power Tool Batteries & Chargers UK (2026) guide.
This selection focuses on 40V charger power tool batteries designed for use with a range of outdoor equipment. These batteries provide substantial runtime and are compatible with various tools requiring 40V operation, including chainsaws, leaf blowers, strimmers and hedge trimmers. Investing in a reliable 40V battery system delivers improved performance and reduced reliance on mains electricity when tackling gardening tasks or property maintenance. Ensure you check the compatibility of your specific tool before purchase to guarantee optimal power delivery.
#1 Pick
Swift Tools 40V Battery Charger EBC05, Compatible With Swift 40V Lithium-Ion Cordless Tool Range- 40V Charger
£40.44
Pros
- Works across the full Swift 40V lithium-ion garden tool range
- Useful as a spare or replacement charger to keep tools topped up
- Solid 4.4-star rating from verified buyers
Cons
- Only compatible with Swift 40V-branded batteries
FAQ
What tools are typically compatible with 40V charger batteries?+
Many popular brands such as Bosch, Ryobi and Ego offer tools designed for use with 40V lithium-ion batteries. Always consult the tool's specifications to confirm compatibility before purchasing a battery.
How long do 40V batteries typically last on a single charge?+
Runtime varies significantly depending on the tool being used and its power draw, but you can generally expect anywhere from 30 minutes to over an hour of continuous use with a fully charged 40V battery.
Are 40V batteries better than lower voltage options?+
Generally, 40V offers a good balance between power and runtime. Lower voltage batteries may struggle with demanding tasks while higher voltages can drain quickly, so 40V provides a solid performance level for most outdoor jobs.
What is the best way to store a 40V battery?+
Store your battery in a cool, dry place away from direct sunlight and extreme temperatures. Keeping it between 10°C and 25°C will help maintain its charge and prolong its lifespan.
Do I need a special charger for 40V batteries?+
Yes, you require a dedicated 40V charger to recharge these batteries. The chargers are typically compatible with multiple battery cells within the same series – check your charger’s specifications.
How quickly do 40V batteries charge?+
Charging times vary depending on the charger and battery level, but you can usually expect a full charge in approximately 60-90 minutes using a compatible fast charger.
Are 40V batteries safe to use around water?+
While designed for outdoor use, avoid prolonged submersion of the battery or charger. Wipe off any splashes immediately and ensure proper ventilation when charging.
What type of lithium-ion cells are commonly found in 40V batteries?+
Most 40V batteries utilise Lithium Iron Phosphate (LiFePO4) cells, which are known for their stability, longer lifespan and reduced risk of thermal runaway compared to other lithium-ion chemistries.
Can I use a different voltage charger on a 40V battery?+
No, attempting to use a charger with a different voltage can damage the battery and/or charger. Always utilise chargers specifically designed for 40V batteries.
What is the typical lifespan of a 40V battery?+
With proper care and maintenance, a good quality 40V battery can last between 2 to 5 years depending on usage patterns and charging habits. Regular storage in a cool environment will help maximize its longevity.