Easy life bios battery replacement Top Tip.

You know, now and again you may find you need to reset the bios.
Personally: I power off at the wall then push start to remove any remaining power and then remove the battery and leave out for a few mins.
Butt the battery can be mostly obscured because of existing hardware and the PC will have lots of connectors coming out of the front and back and the PC will some what look locked in situ and so this small task can become quite mammoth and whilst removal of the battery may be easy getting it back in can be a real 30min pain in the brain.
So here is what I use.
A telescopic magnet pen.

With one of these you can leave PC and hardware in situ. Making a potentially 30min job into no time at all Job and breath.