Battery mower - time, square meters and battery size | Lawn Mowers | AL-KO Gardentech FI

How many square meters can a cordless mower actually cover? How long does it take? And how much influence does battery size have on performance?
We tested this with our battery mower AL-KO 36 V 512 Li VS-W Premium.
The lawn we tested has been regularly fertilized and watered and the grass had not been cut for a week. We cut about 5 cm of the grass.