The Roomba 650 is a Fourth Generation robotic vacuum released by iRobot in August 2012. This device is hand-free and is programmed to clean our homes. With little manual operation needed, this robot have revolutionized house cleaning.

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Why doesn't Roomba 650 clean according to schedule?

I had my vacuum set to clean once a week, but now I have to tell it every time I want it to run. Why doesn't it go according to schedule anymore?

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Hey Charles,

According to the Roomba 650 trouble shooting page there could be multiple issues with your roomba. 1) Your target station is too far away or 2) There is an issue with your batttery. To fix the first issue you should move your home station to a more central location. For the battery problem I would suggest cleaning the nodes on the battery first then start to think about buying a replacement battery. You should check out the troubleshooting page at

iRobot Roomba 650 Troubleshooting

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Try changing the battery.

Here's a rather poor but sufficient guide to do it:

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This answer was originally to another question.

There may also be an issue with the charging station.

My Roomba does not return to the charging station. When placed there manually, Roomba does not charge. Unplugging the charging station and charging Roomba directly works. I then reconnected the charging station to power and measured the voltage across the spring terminals. No DC voltage could be measured. I unplugged the charging station and cleaned the terminals with a Q-Tip and rubbing alcohol. No change in the measured results across the terminals.

Question: How do I dismantle the charging base? I managed to unsnap all but one centre retainer.

Has anyone serviced the charging base?

Thanks in advance.

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A quick follow up...

I managed to open up the charging base. There is a 3rd fastener under the 'rubber' padding. You will need a long neck screwdriver to reach the head of the fastener.

The voltage I measured at the charging contacts is actually a steady 2.9 VDC. Does anybody know what a 'normally functioning' charging base should be outputting?


The Roomba battery is 14.4 VDC, so you should be measuring at least that much. The specs should be printed on the transformer.


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