Hitachi DS7000 Installation Manual page 12

UBox Onboard Battery Label
C003
C003:
The onboard battery should be replaced regularly. It must be replaced
with the same or an equivalent type recommended by the
manufacturer. There is a danger of explosion if another type is used.
Dispose of used batteries according to the manufacturer's instructions
UBox Power Supply Unit (PSU) Label
The label is located at the rear of the UBox.
C044
C044:
This unit has more than one power supply cord. Disconnect all power
supply cords from the unit before servicing.
Proceed as follows:
1. Power OFF the system
2. Switch OFF the site power breakers
3. Remove all power supply cords from the system
CAUTION
Rear view
CAUTION
Chapter 1. Checking the Delivery Contents 1-7