The commercial grade zero turns run 6-8 hours on a charge with regular grass and 3-4 hours with tall grass 10"+ or higher. The lawn care service company carries extra batteries that pull out in seconds just like your handheld batteries but bigger. There is a you tube video of a Gravely or Simplicity battery powered zero turn that cut a 3 acre lawn with grass 2 feet high. The commercial lawn car owners was super impressed.
If you read the independent you tube videos of people with lawn care co;s using battery powered zero turns they are all very impressed.
Like the guy told me today in 5 years all zero turns will be battery powered. No hydraulics to worry about, no belts or hoses to break or wear out. no oil changes etc. No maintenance. No noise or vibration. Lower center of gravity so they are not as tip prone.
Don't take my word for it read the reviews on youtube.
Check out the new John Deere electric commercial grade zero turns and others.
https://www.youtube.com/watch?v=oAgUD20TlFg
That’s all very interesting. I’m sure like cars, they have their place. In the field, there will be issues. Hills (my home I hope to get soon from moms estate has HUGE hill high grade), rough terrain, etc, all need power and torque. Weather, too cold or hot or humid.
Watching something and using it once on a nice location is one thing. Real life is another.
And again, the main reason they’ll be electric….force. Regulations and coercion with subsidies.