Dyson DC44 battery-powered vacuum cleaner (Cookham SL6)

Purchased 2013. Has developed an intermittent fault whereby it will randomly stop working for a short time (possibly a contact issue with the on button?). Would suit someone with the knowhow/patience to take it apart and try and fix it (or prepared to take it to a local Repair Cafe).

Comes with:
> the tools/attachments shown in the second photo (not sure what they’re all called or even meant to be used for!)
> charger
> wall holder (never used, now missing any necessary screws to attach it to the wall)
> Operating manual

Please state whether wanted for personal use or resale.