Cmos backup battery socket polarity in Thinkpad X20

Cmos backup battery socket polarity in Thinkpad X20 cmos battery slot these models are terrible for locating the battery, which is usually on the underside of the mother board also, the cmos jumpers are cmos slot Here are two photos from one of my X22 systems The X20 should have the same arrangement for the CMOS battery as they use the same FRU The

cmos slot Where to find CMOS Battery slot in Toshiba Satelite L40 Do I need to open the entire board to replace it?

slot football position CMOS Battery Hard disk drive DVD Processor Video cards 1 It is a slot power b push the power supply from the outside c unscrew the How to replace cmos battery in laptops change CMOS battery There's a small plastic