SOLVED: Is there no CMOS RAM battery on this model? - MacBook Unibody Model A1278 - iFixit
MacBook Pro 15" Core 2 Duo Models A1226 and A1260 PRAM Battery Replacement - iFixit Repair Guide
Unibody MacBook Pro 15" Pram Battery Cell (Late 2008)
MacBook Core Duo PRAM Battery Replacement - iFixit Repair Guide
For Apple Macbook Pro/ Air A1534 Read Write Bios Programmer Mac Efi Bios Firmware Decryption Password Id Lock Remover Unlocker - Integrated Circuits - AliExpress