In early spring, I cut a 50+ year old invasive honeysuckle bush down as far as could manage at the time and hit it with root killer. It, of course, has attempted to grow back. So tonight I took the medium chain saw and cut the roots out bit by bit. It was exhausting and time consuming and I went through 7 charged batteries but I got the roots out and the stumps as well.

Afterwards, I only pulled about 50 bt before calling it a night.