I have a Stihl electric polesaw/weed eater/brush/… combo with a backpack battery. That battery outlasts my ability to use it in a day. Multiple small batteries

I have a Stihl electric polesaw/weed eater/brush/… combo with a backpack battery. That battery outlasts my ability to use it in a day. Multiple small batteries is an extremely doable solution for a professional. Also, what you add in battery charging, you easily make up with reduced maintenance of the tool.