AEG Protect D Series User Manual page 49

If it needs to replace the batteries while the UPS is running, make sure the
UPS would not shut down during the replacement. If there is a battery
breaker then turn it off first. Disconnect the battery cable carefully and
make sure no any exposed wires can be touched.
Reconnect the new batteries to the UPS by
battery pack installation.
ON switch to make the UPS do the battery test, check whether the battery
information is normal.
Follow the steps and Charts as below to replace batteries:
1. Take off the LCD box and remove the screws.
2. Slide and Pull the front panel leftward and then take it off.
3. Disconnect the cable from the UPS and battery pack.
4. Remove the right inner battery bracket.
5. Pull the battery pack out onto flat area.
6. Install new battery pack into UPS.
following section 3.3.1
Then turn on the battery breaker and press the
49
EN
External