HPE ProLiant DL325 Gen10 Plus v2 User Manual page 244

12. Insert the battery with the "+" side facing up on the socket, and then press the battery down to secure it in place.
13. If removed, install the primary riser cage .
14. Install the access panel .
15. Install the server into the rack .
16. Connect all peripheral cables to the server.
17. Connect each power cord to the server.
18. Connect each power cord to the power source.
19. If installed, close the cable management arm.
Removing and replacing the system battery 244