I had one maybe 4 years ago and ended up ditching it because the batteries would only last 1-2 seasons and every year I had one or two mows where I had to go over it at least twice due to height. It had a ni-cad system, totally different than the lithium ones now. I ended up buying the cheapest mower with a Honda engine I could find.
Next mower will likely be electric, I have a small yard and already switched the trimmer to electric.
I have a chainsaw and pressure washer that require gas to be stored, so it isn't much of a benefit switching the mower.