My mom wants an electric lawn mower. Any reccomendations?

Old Lawn boy push mowers were tough.
Bought two commercial units that my buddy picked up at a government auction.
They were basically indestructible, cast aluminum decks, large wheels, always started, unless the kids hit stumps that were in the back yard.
They would shear the crank keyway, put another one in, and keep mowing.
Sometimes I think the kids would hit the stumps on purpose to get out of mowing.