![Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support](https://support.hp.com/doc-images/289/c05324119.jpg)
Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support
![Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support](https://support.hp.com/doc-images/43/c05324593.jpg)
Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support
![Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support](https://support.hp.com/doc-images/842/c05324591.gif)
Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support
![Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support Remove and Replace the Real Time Clock Battery on HP ProBook 640 and 645 G2 Notebooks | HP® Customer Support](https://support.hp.com/doc-images/138/c05324121.jpg)