Industry Standard CR2032 Lithium Button Cell. Works as a PRAM battery replacement in Mac Pro towers for 2008 through 2012 models. Specifications: Classification: "Lithium Coin" Chemical System: Lithium / Manganese Dioxide (Li/MnO2) Designation: ANSI / NEDA-5004LC, IEC-CR2032 Nominal Voltage: 3.0 Volts Typical Capacity: 240 mAh (to 2.0 volts)(Rated at 15K ohms at 21øC) Typical Weight: 3.0...