As to my comment above, I had to order them and fit them to the battery as it was moving around inside!
This worked for me. Unfortunately I managed to pinch the fleshy bit of my index finger when closing shut the handles….ouch! So just be a bit careful!
Before embarking on this, remember to order some new replacement sticky adhesive strips, as these do not come with the replacement battery. I didn’t realise this until I had removed the battery. I just replaced it without and have crossed my fingers!