![40V lithium-ion battery on a white background](http://westinghouseoutdoorpower.com/cdn/shop/products/1-westinghouse-40v-2ah-25ah-4ah-lithium-battery-hero_{width}x.jpg?v=1576252019)
![40V lithium-ion battery on a white background](http://westinghouseoutdoorpower.com/cdn/shop/products/1-westinghouse-40v-2ah-25ah-4ah-lithium-battery-hero_{width}x.jpg?v=1576252019)
![Westinghouse 40V line on a white background](http://westinghouseoutdoorpower.com/cdn/shop/products/2-westinghouse-40v-2ah-25ah-4ah-lithium-battery-full-tool-line_{width}x.jpg?v=1576252034)
![A woman plugs in the battery into a 40V cordless tool](http://westinghouseoutdoorpower.com/cdn/shop/products/3-westinghouse-40v-2ah-25ah-4ah-lithium-battery-slide-in_{width}x.jpg?v=1576252047)
![A person uses a 40V string trimmer and edger on the grass. Closeup of the back of the string trimmer showing where the battery plugs in](http://westinghouseoutdoorpower.com/cdn/shop/products/4-westinghouse-40v-2ah-25ah-4ah-lithium-battery-lifestyle_{width}x.jpg?v=1576252057)
![Closeup of 40V hedge trimmer showcasing handles and body of the unit. The blades are up against a bush. Text in the lower right corner reads "gas-like power"](http://westinghouseoutdoorpower.com/cdn/shop/products/5-westinghouse-40v-2ah-25ah-4ah-lithium-battery-gas-like-power_{width}x.jpg?v=1576252072)
![40V lithium-ion battery on a white background](http://westinghouseoutdoorpower.com/cdn/shop/products/1-westinghouse-40v-2ah-25ah-4ah-lithium-battery-hero_{width}x.jpg?v=1576252019)
![Westinghouse 40V line on a white background](http://westinghouseoutdoorpower.com/cdn/shop/products/2-westinghouse-40v-2ah-25ah-4ah-lithium-battery-full-tool-line_{width}x.jpg?v=1576252034)
![A woman plugs in the battery into a 40V cordless tool](http://westinghouseoutdoorpower.com/cdn/shop/products/3-westinghouse-40v-2ah-25ah-4ah-lithium-battery-slide-in_{width}x.jpg?v=1576252047)
![A person uses a 40V string trimmer and edger on the grass. Closeup of the back of the string trimmer showing where the battery plugs in](http://westinghouseoutdoorpower.com/cdn/shop/products/4-westinghouse-40v-2ah-25ah-4ah-lithium-battery-lifestyle_{width}x.jpg?v=1576252057)
![Closeup of 40V hedge trimmer showcasing handles and body of the unit. The blades are up against a bush. Text in the lower right corner reads "gas-like power"](http://westinghouseoutdoorpower.com/cdn/shop/products/5-westinghouse-40v-2ah-25ah-4ah-lithium-battery-gas-like-power_{width}x.jpg?v=1576252072)
40V Lithium-ion Battery
- Premium lithium-ion battery powered by Samsung SDI™
- Maintenance-free plug-and-play battery easily snaps into place
- Charges in 60 minutes with Westinghouse 40VMAX+® Rapid Charger
- Need a 40V Battery & Charger? Click Here
Where To Buy:
The Westinghouse 40VMAX+® Lithium-Ion Battery offers a convenient emissions-free alternative to gas-powered tools. Interchangeable between Westinghouse 40VMAX+® Cordless Lawn & Garden Tools, this durable battery pack harnesses lithium-ion energy that gets through trimming, edging, and cutting in a snap. Powered by Samsung SDI™, these premium battery cells provide higher capacity power storage in fewer cells to let you get more work done in a day. More than 30% lighter while holding 300% more power per cell than traditional nickel-cadmium batteries, the battery boasts shorter charge times and longer battery life to keep your lawn looking precise at a moment’s notice. With the option of a 2.0 Ah, 2.5 Ah, or 4.0 Ah pack, Westinghouse 40VMAX+® Lithium-Ion Batteries do not require maintenance and will stay charged on the shelf to ensure you’re always ready to go.