We stock a wide range of Greenworks Lithium-Ion rechargeable battery powered tools. These tools come in 24V, 40V, 60V ranges - the higher voltage tools are more powerful, but heavier.
The same Greenworks battery fits all tools in the same voltage range. For extra convenience, with two batteries you can do all the work using one while you're charging a second. Batteries come in 2Ah or 4Ah versions - the 4Ah versions last twice as long on a single charge (but are larger and heavier).