iRobot 536 Charging Error 3

I have a pretty open space with just 3 planters in the living room area,
so not too many obstances or anything out of the norm.

This mornings run time was 40 minutes. It’s on the docking station now.

You have been of tremendous assistance to me in this adventure. I
cannot tell you how much I appreciate it…but I would like you to know
that it’s priceles. Thank you so much.

Will check back in as things progress.

Cathy