Do I Need The Packaging?

shaun_from_Africa

Rlowery said:

Vape was a £80+ model that she got during a Black Friday sale. She paid £35.
Even at that price, I would expect it to last a year. 

Forget the £80+ price. It's only the actual price paid that's relevant.
6 months use from a £35 item that will contain a very cheap and low quality rechargeable battery and other electronic or electrical bits isn't IMO too bad, and I think you would be wasting time and effort to try to get a resolution under the Consumer rights act.
You may have to show that the failure was because of a manufacturing defect and even if this was possible, the retailer would probably offer a partial refund. 
How much is a 6 month old vape that initially cost £35 worth?