New Irobot Roomba 4210 Discovery Battery Won’t Charge!?
The iRobot is about two years old and I replaced the battery. This is the second new battery I purchased (new not referb.). They come charged and I run the Roomba until it dies and then put it back on the base. After that the power light flashes red without ever recharging.
Any clues?
try plugging it into the vacuum – not the base