Hi, it's Jeremy from Crucial Vacuum.
Try charging your Neato vacuum directly with the plug. If you take apart the dock you will find the plug inside. Plug that plug directly into Neato and charge the Neato until its light is green. If your Neato's Battery charges and it works ok, reassemble the base with the charger making sure that the plug you plugged into your Neato is plugged FIRMLY into its connector inside the base.
You can purchase direct your replacement Neato parts from Crucial Vacuum with free shipping and an exclusive 10% coupon for Fixya.com readers, use code: FIXYA10
I hope this was helpful. If you would like further assistance, please feel free to give us a call at 877.750.9239. We have helpful and friendly customer care representatives on the line ready to assist you.
Crucial Vacuum Customer Care