5 Things to Know About the Roomba j9+ Run Time
Regarding the Roomba: 1. The j9+ runs for about 120 minutes on a full charge. This is enough to clean most homes under 2,000 square feet without needing to recharge mid-run.
Larger homes over 2,000 square feet may require a recharge. The robot will automatically return to its base, recharge, and resume cleaning where it left off.
Run time depends on floor type and cleaning mode. Carpet uses more battery than hard floors, and a more aggressive cleaning mode drains the battery faster.
The j9+ uses a lithium-ion battery. This battery type holds its charge well over time, but you should expect gradual capacity loss after a few years.
You can check remaining battery life in the iRobot app. The app shows the current charge level and estimated cleaning time left, so you can plan around it.