Roborock S7 MaxV (S270RR) the robot charges slowly
Cause 1 of 2The robot is used at high or low temperatures and automatically reduces its charging speed to extend battery life. Source: Common Issues, p. 13
First checkCharge the robot at a moderate temperature.
Causes and checks
The robot is used at high or low temperatures and automatically reduces its charging speed to extend battery life. Source: Common Issues, p. 13
- Charge the robot at a moderate temperature.
The charging contacts may be dirty. Source: Common Issues, p. 13
- Wipe the charging contacts with a dry cloth.
All 2 causes checked. Contact the manufacturer.
Other S7 MaxV (S270RR) problems
- The robot will not power on2 causes in the manual. First: the battery level is low.
- The robot will not charge2 causes in the manual. First: the dock may not be receiving power.
- The robot cannot dock2 causes in the manual. First: too many obstacles are near the charging dock.
- The robot behaves abnormallyThe robot behaves abnormally without showing an error.
- The robot is noisy during cleaning2 causes in the manual. First: the main brush, side brush, main wheels or omni-directional wheel may be jammed.
- The robot cannot connect to WiFi5 causes in the manual. First: wiFi is disabled.
- Poor cleaning or dust falling out3 causes in the manual. First: the dustbin is full.
- Scheduled cleaning is not workingThe battery level is below 20%; scheduled cleaning can only begin above 20%.
- No or little water while moppingThe water tank may be empty, or the scrub intensity or the mop cloth installation needs checking.
- Cleaning does not resume after recharging2 causes in the manual. First: the robot is in DND mode, which prevents cleanup.
- The robot cannot return to the dock after spot cleaning or being movedAfter spot cleaning or a significant position change the robot regenerates the map; if the dock is too far away it may not return to recharge.
- The robot misses certain spotsThe wall sensor or cliff sensors may be dirty.
- The water tank takes a long time to fillThe filter may be blocked.
Sources
- Roborock S7 MaxV Robotic Vacuum Cleaner User Manual. Beijing Roborock Technology Co., Ltd. Document S270RR, revision Undated download (PDF created 2022-03-09), 14 pages, en. support.roborock.com. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.