Button Cell Battery, Lithium
From Amazon
CR 3032 Lithium GP Button Cell Batteries 500 mAh 3 V 1 Piece
Conrad Electronic
GP Batteries Button cell CR 3032 3 V 1 pc(s) 500 mAh Lithium GPCR3032STD265C1
OnBuy
GP Batteries 103226 LITHIUM BUTTON CELL CR3032 103226