4 Steps to Diagnose a Robot Vacuum That Dies Early

Replace the battery first Lithium-ion batteries start losing capacity after six months of daily use, especially if you run the vacuum until it’s dead every time. A new battery costs $20–40 and is the most common fix.

Clean the charging contacts Dirty contacts on the vacuum or dock can prevent proper charging. Wipe them clean before assuming the battery is bad.

Check for mechanical drag A jammed brush roll or clogged filter makes the motor work harder and drain the battery faster. Clear any obstructions and replace the filter if needed.

Try a full discharge and recharge cycle The battery management system sometimes needs recalibrating. If that doesn’t help, swap the battery before troubleshooting more expensive components.