Check the battery first when your robot stalls in the same spot

Your robot stopping dead in the same spot every cycle is usually a weak battery, but a tangled cable or a barely-there fiberglass ridge can fool it too.

The battery is the first suspect because a robot that dies mid-run will often try to limp back to the dock, then lose juice right at the same distance every time. It looks like it’s “stuck” on a specific patch of floor, but it’s really just running out of gas at the same point. If your bot is more than a couple years old, swap the battery before you tear your hair out over a “sensor issue.”

If the battery is fine, get down at floor level. A loose charging cable or a phone cord snaking under a sofa can catch the brush or the wheel, and the robot will hit the same obstacle on every pass. Also worth