More on it being best for some use cases but horrible for others. It doesn’t add to my power bill because of my home solar. When I’m done cutting grass for the weekend I plug it into a 120V outlet that’s powered intermittently, only when I have good solar. In the week’s time between grass cuts I’ll have at least one day of good solar—so it’s always charged up with free power. Which will almost always be the same for the recharge while trimming— if the weather is clear enough to do yard work it’ll almost always be a good enough solar day for free power. Though I have a constant powered 120V by the shed just in case I’m doing yard work on bad weather.
It sounds like a nice addition for straight-up mowing. Pretty expensive initial cost?
Honestly, I haven’t looked, so please excuse my laziness there.