Defender 650/1200/1600's have a user replaceable battery feature. Please read
warning on the front page about battery safety and follow the steps carefully shown
below. Please use only PowerShield approved battery pack to maximize the perfor-
mance of the unit.
1. Shutdown all connected equipment and turn the UPS off by pressing on / off
button.
2. Remove input cord from mains and remove all output cords from the UPS.
3. Flip the UPS upside down.
For Defender 1200/1600, locate the Philips head screw on the bottom of the front
panel. Remove the screw using a Philips screw driver.
For Defender 650, locate the two slots on the bottom of the front panel. Insert a
flat head screw driver in one of the two slots. Press gently down towards front
while also gently levering the screw driver towards front. Repeat for the second
slot to unclip front panel.
4. Remove the front panel by grabbing the bottom edge of the front panel and pull
forward. Please be careful not to apply excess force to the panel as it may
cause damage to the LCD cable attached to it.
5. Remove the metal plate holding the battery pack in the enclosure by sliding it
upwards and then pull out.
6. Pull tag of the battery pack and remove the battery from the unit
7. Remove Red (Positive) and Black (Negative) battery wires from the battery pack.
8. Prepare new battery pack. Connect Black (Negative) wire to the new battery
black terminal and connect Red (Positive) battery wire to the red battery terminal.
Note:You will see a small spark when you connect red wire to the battery. This is
normal as the unit charges some components. Please check polarity of battery
terminals.
9. Insert the battery back into the unit and put the metal plate back in to the front of
the enclosure. Replace the front panel. For Defender 1200/1600, fasten the
Philips screw.
10. Please recharge the unit for 6 hours before you turn the unit on.
Please follow the trouble shooting section below. If the problem cannot be
resolved, please check PowerShield FAQ web page or call our customer support
for further assistance.
