Chosen Solution
This is for the V6 cordless slim. I got a new battery and it shows that it is charged, but it is not working. I took all the part off so it is just the charging dock and the motor/ board. It occasionally turns on for 2 seconds but 90% of the time it does nothing. Not sure what the problem is. I cleaned everything out that I could within the motherboard/ motor area.
If your Dyson v6 Absolute vacuum cleaner turns off unexpectedly during use or no longer turns on, see the Dyson v6 Absolute Turns Off Unexpectedly or Won’t Turn On problem page for possible causes and solutions.