Einhell offers this lawn mower that has a maximum cutting width of 48 cm, great for larger areas.
From ManoMano
Cordless Lawnmower 48cm Mulching Steel Deck 36V ge-cm 36/48 Li body only - Einhell
Conrad Electronic
Einhell GE-CM 36/48 Li M-Solo Power X-Change Rechargeable battery Lawn mower Lateral ejector, Mulcher, w/o battery, w/o charger, + cutting height adjustment 18