Greenworks G-Max DigiPro (16") 40-Volt, Lithium-Ion Cordless Chain Saw (No Battery-Tool Only)

Paul - a lithium-ion product does require a battery pack in order to operate. You are correct when you say "no gas, no cables", but this saw would require a Greenworks 40-volt lithium-ion battery in order to run. The battery would supply the power to the saw. The lithium-ion battery pack is rechargeable - the saw itself is not. For this particular model, one would choose the model 20322 if you already have another Greenworks tool that uses a 40-volt lithium ion battery and you simply wanted a chain saw to use with the battery you already own. If you don't have another Greenworks 40-volt lithium-ion tool already, then you'd want to choose the model 20312 - which includes a battery and a charging stand. Run time varies from 20 to 45 minutes depending on the type of wood you are cutting, and how wet or dry that wood is. There is a trigger switch on the inside of the hand grip that you would press in order to "turn the saw on". You would release the trigger switch to "turn the saw off".