Guide :Vacuums : Roomba 4210 Bagless Robotic Vacuum
Battery light goes red after bumping/backing up
This just started. After running just fine, and running completely out of battery "juice", I recharged the battery and set the Roomba down in another room. I started it up, it ran to a wall, bumped and immediately the battery light went red. When I put it back in the charger, it went green in less than 1 minute. I ran it again and it bumped into something, backed up and went red. I took out the battery pack, cleaned the contacts and some dust/lint, popped it back in and the light went green. Restarted and the same result.