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Amazon.com: EEMB 5PACK 3.7V LIR2032 Rechargeable CMOS Battery with Wire Leads and MOLEX Wire Connector for Computer or Laptop Motherboard Battery - Rechargeable : Electronics
Rainpro 2pcs/lot 20mah 2.4v Ni-mh With Line Bios Cmos Rechargeable Button Cell Battery Ni Mh Batteries - Button Cell Batteries - AliExpress