How many square feet is the lawn?

The grass areas maybe 10' X 70' and 10' X 20'. Some shrubs and HVAC interspersed.

With less than 1000sf, you are good candidate for electric rotary mower. However, odd shape of larger area (10' x 70') means you will need 100ft 12ga extension cord which will be somewhat inconvenient to handle. Not sure whether battery powered will have enough grunt for your application.

Thanks. I measured and the 10 X 20 is out (will be stones). 10 X 70 is more like 12 X 50. Flat, zoysa grass. What about a reel mower?

Sounds like you could do the whole thing with a human-powered reel mower. Zoysia is ideal to be cut with a reel mower. Best Wishes--Carl