Navimow can handle a slope with max. 45% incline in the work area.
However we recommend the user not to set the boundary on a slope. If the boundary has to be set on a slope then the incline should not be more than 10% due to the following reasons:
1) The robotic mower needs a certain braking distance when driving down from a slippery and wet slope;
2) The satellite signal might be blocked by the plants close to the boundary.
If there is a buffer distance outside the boundary on a slope and there is no visible signal blockage around, you may also try to set a boundary on the slope with bigger steepness. Please pay extra attention to this area when testing the map to ensure that the mower and satellite signal work properly.