If your Dyson V11 or V15 Cordless Vacuum is not working or the light is flashing 10 times then this should show you how to solve it.
For a new V11 body with the "Screw in Battery" : https://amzn.to/4avPvNh
For a new V11 body with "Clip in Battery" : https://amzn.to/47m71RD