User Manual Bosch BCH3ALL25/01 2in1 Cordless Handstick Vacuum Cleaner

If you pull down the accessories flap the screw and screw
hole should be there on the main body.

It does not separate. It is designed to be one unit. The
smaller tube pushing in or pulling out of the larger
tube.The button at the brush end is a lock mechanism
when you pull out the thinner tube or push it back. It is a
means to keep them together, because you will only
use this tube with its friend!

One year

The cleaner works off 2 rechargeable lithium batteries.
On normal mode runs for up to 55 minutesand on turbo
mode 18 - 20 minutes. The batteries are 25.2 v and
21.8 v.
The batteries should last for years but replacement
would have to be done by a professional.