what type of battery is for cmos
General Information -. If you are looking for CMOS batteries go to the CMOS Batteries page. CMOS batteries come in several flavors. A non-rechargeable Lithium type, a non-rechargeable standard AA size battery pack (4 AA batteries) and varied rechargeable types such as NiCads.eneral Information -. If you are looking for CMOS batteries go to the CMOS Batteries page. CMOS batteries come in several flavors. A non-rechargeable Lithium type, a non-rechargeable standard AA size battery pack (4 AA batteries) and varied rechargeable types such as NiCads.