This coin battery is commonly used as a PRAM battery in various Mac devices.
crwdns2944524:012crwdne2944524:0
crwdns2936751:024crwdne2936751:0 0
crwdns2936753:07crwdne2936753:0 7
crwdns2936753:030crwdne2936753:0 20
crwdns2942667:0crwdne2942667:0 438