Quick answer: To charge a Roborock, place it squarely on a powered, unobstructed dock and confirm its own charging voice, light, or app status. If it will not charge, start with the dock power cable, the outlet, contact cleanliness, and robot seating—not a factory reset. Charge time is model-specific, and temperature can slow it, so use the exact manual rather than a universal number.
Charge a Roborock correctly
- Put the dock against a wall on a firm, level surface. Roborock manuals commonly require clear space around and ahead of the dock; use your model’s placement dimensions.
- Push the dock cable fully into both the dock and wall outlet. Do not use a damaged cable or a loose extension setup.
- Switch the robot on if its model requires it, then align its charging contacts with the dock contacts until it announces or displays charging.
- For an ordinary recharge, use the app’s dock command or the robot’s dock button while it is paused. After cleaning, compatible robots normally return automatically.
- Confirm charging from the robot or app before walking away. A dock light alone can mean different things on different models.
If your Roborock is not charging, check in this order
| What you see | First check | Safe next step |
|---|---|---|
| Dock has no power indication | Cable at both ends and the wall outlet | Try a known-working outlet; reconnect the dock after the model-specific wait period. |
| Robot sits on dock but does not report charging | Contact alignment and debris | Wipe robot and dock contacts with a soft dry cloth, then reseat the robot. |
| Robot reports a charging error | Contacts, cable, dock power, and temperature | Follow the exact error code in the manual; do not open the battery compartment. |
| Robot cannot find the dock | Dock clearance, dock signal area, and robot sensor | Clear obstacles, clean the relevant sensor areas, and place the robot on the dock manually if necessary. |
| Percentage rises unusually slowly | Room temperature and contact condition | Let the robot and dock return to a normal operating temperature; confirm the model’s expected time in its manual. |
Roborock’s support guidance for a charging error calls out contact contamination, dock power, cable seating, and a different outlet before escalation. Its manuals also say that high or low temperatures can reduce charging speed to protect battery life. If you see corrosion, remove only surface dirt with the exact manual’s approved method; otherwise a soft dry cloth is the safest default.
Clean the charging contacts without making it worse
Remove the robot from the dock and inspect the metal contacts under the robot and on the station. Wipe both sides with a soft dry, lint-free cloth, then place the robot back on the dock. Do not spray liquid into the dock, use a metal tool, or use a damaged charging cable.
Charging contacts are also part of the routine maintenance list in our Roborock cleaning guide. If a dry wipe does not restore a confirmed charging connection, check the manual’s error code guidance rather than repeatedly scrubbing the contacts.
How long does a Roborock take to charge?
There is no one accurate answer across the range. Roborock’s support center publishes a charge-time table by robot family, while manuals identify conditions that can slow charging. Check the exact model name in the app or on the robot label, then use that manual’s charge specification and completed-charge indicator.
Do not use a charge time from a cordless stick vacuum, a previous Roborock generation, or a social-media video as a benchmark. The useful question is whether the percentage rises normally and eventually reaches the completed state described by the manual. If it does not, use the fault checklist above.
When the robot will not return to the dock
This is often a navigation or placement problem, not a charging problem. Roborock’s support guidance says to keep the dock against a wall with model-appropriate clearance, clean its front signal area and the robot’s front sensor, and remove nearby obstacles. Starting a run in a different location or moving the robot manually can also prevent a clean return path.
After spot cleaning or a significant position change, some models regenerate their map. If the dock is then too far away, place the robot on it manually and review how to remap and edit a Roborock map before the next full run.
Do not diagnose a battery from one failed charge
Roborock manuals for lithium-ion robot vacuums generally advise keeping the robot charged and, for extended storage, charging it at least every three months. A manual checked for this guide says a docked robot uses very little power after charging to maintain battery performance. That does not make every slow or failed charge a battery defect.
Stop and contact Roborock support if the cable, plug, dock, or battery area is damaged; if you notice excessive heat, odor, leakage, or swelling; or if the robot confirms charging but never gains charge after the documented basic checks. Do not disassemble a battery pack for routine troubleshooting.
Frequently asked questions
Why is my Roborock not charging?
First confirm that the dock has power, the robot is seated on it, and both sets of charging contacts are clean. Then check the cable, wall outlet, dock placement, and temperature. If the robot reports charging but its percentage never rises, or there is cable or dock damage, stop troubleshooting and contact Roborock support.
How long does a Roborock take to charge?
There is no safe universal time for every Roborock robot vacuum. Roborock publishes a model-specific charge-time table, and charging can slow in high or low temperatures. Use the exact model manual and the completed-charge indicator rather than a generic number from another robot.
Can I leave my Roborock on the charging dock?
Roborock manuals for lithium-ion robot vacuums generally instruct owners to keep the robot charged to maintain battery performance. A docked robot draws very little power after charging to maintain the battery; follow the manual for your exact model and dock.
Why won't my Roborock return to its dock?
Clear obstacles around the dock, keep the dock against a wall, clean the dock signal area and robot sensors, and do not start a cleaning run far from the dock. After spot cleaning or a significant manual move, some robots may regenerate their map and need to be placed on the dock manually.