Get the power you need to tackle those lengthy jobs with the Baumr-AG 20V Lithium-Ion Battery. Having this ultra-compact power source on-hand and on-charge is the smart way to execute your work around the garden. You won't need to worry about rushing through your tasks before your charge is exhausted again. Take the time you need to perfect your garden! Featuring the latest Li-Ion technology, this powerful unit gives you optimal performance in the smallest package, and you can leave it unused without having to worry about memory effects or loss of charge. It's all you need to charge ahead. Compatible with the entire Lithium E-Force 200 Series range of power tools, not only can you swap batteries, you can also swap the tool you want to work with.