I tried to get into the SharkNinja website with no success. I have emailed twice over more than a week and heard nothing. I registered the above Ref: [protected] - Model Number: 1C160UKT26 on 18th February 2020, I also have proof of registration. Our printed details tell us that the battery for this hoover is guaranteed for 2 years. We live in a small Council 2 bedroom flat and normally my Husband can hoover the whole flat no bother. But of late he is having to re-charge the battery to get the last bedroom done, between 5-10 mins hoovering! According to leaflets it should hoover longer than the above. I am Partially Sighted and this is the reason my 78 year old Husband does the hoovering and helps me a lot around the home. Can someone please help us? Regards Sandra Orrock (Mrs). 20 St. Murdochs Crescent, Arbroath, Angus, DD11 5BZ. E-mail: [protected]@outlook.com