HP 9000 rp7440 Safety And Regulatory Information Manual page 13

4. Remove the UPS battery modules.
IMPORTANT:
HP 3 Phase UPS R8000/3 and R12000/3
1. Remove the UPS front bezel.
2. Remove the UPS battery bracket.
3. Remove the UPS battery modules.
Do not pull the battery leads when removing or installing the batteries.
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