if so, how does it's recharger look like?
CMOS batteries are
Batteries such as this
|show 1 more comment|
Some motherboards used to have rechargable CMOS batteries on them.
In general now, no CMOS battery (especially the silver button cell type) are rechargable without investing in a specific rechargable version.
Do not - I repeat - DO NOT attempt to recharge a non-rechargable lithium cell (button type) as the resultant explosion and noxious gasses could kill you (or worse).