Mountfield offers this lawn mower that has a collection box of 40 litres. It has a minimum cutting height of 25 mm, great if you prefer a shorter lawn.
From ManoMano
Princess 38 Electric Four-Wheeled Rotary Mower 15' MF-PRINCESS38 - Mountfield
Frank Nicol
Mountfield Princess 34 Mains Electric 4 Wheel, Rear Roll ...
World of Mowers
Princess 38 Electric 4 Wheel Rear Roller Lawnmower