Einhell offers this lawn mower that has a minimum cutting height of 25 mm, great if you prefer a shorter lawn.
From Amazon
Einhell Power X-Change 36/36 Cordless Lawnmower With Battery (x2) and Charger (x2) - 36V Brushless Motor, 36cm Cutting Width, 40L Grass Box, 6 Cutting Heights - GE-CM 36/36 Li Electric Lawn Mower
Wickes
Einhell GE-CM 36/36 Li Kit, Cordless Lawn Mower (2 x 18V batteries included) - Black and Red
ITS
Einhell GE-CM 36/36 Li 36V (Twin 18V) Brushless Lawn Mower, 2x 4.0Ah Batteries & 2x Chargers