I eventually stripped mine down completely, and cleaned everything when rebuilding.the machine was as good as new. Then I got to thinking it must be the safety cutout in the battery. I found a battery online with a greater ampage at only £16. So as a last resort, I thought it was worth a try. Eureka ! It worked ! I don’t think the suction is quite as powerful. But the main thing is that it does not cut out. I have not tried it on full power, as a dyson rep in curry’s once told me that, it is that which causes a problem with the battery cutout in earlier models.

My Dyson absolute works fine on low power. But as soon as I press the button for full power it cuts out. I have found that putting it back on the charger for a few seconds makes it usable again on low power. But it will cut out again if put on full power. I bought this Dyson because I was impressed with the power. But it was very short lived. Very disappointed in Dyson and will not be buying again. They need to sort this issue out or stop selling them ! Update (11/29/2020): Forgot to say…my son bought one and has the very same problem.