Device maintenance and repair
7.4 Removing and installing hardware
SIMATIC IPC PX-39A PRO
82 Operating Instructions, 11/2022, A5E51699950-AA
7.4 Removing and installing hardware
7.4.1 Replacing the backup battery
Risk of explosion and release of harmful substances
Improper use and handling of lithium batteries can result in an explosion of the batteries.
Explosion of the lithium batteries and the resulting release of harmful substances can cause
severe physical injury. Damaged batteries jeopardize the function of the device.
• Replace spent batteries promptly. See information in "Maintenance intervals (Page 80)".
• Replace the lithium battery only with an identical battery or types
recommended/approved by SIEMENS.
• Do not throw lithium batteries into fire, do not solder on the cell body, do not recharge,
do not open, do not short-circuit, do not reverse polarity, do not heat above 100 °C and
protect from direct sunlight, moisture and condensation.
Requirements
• An original spare part, that is a backup battery of the same type (article number of lithium
battery: A5E50549527 CR2450-W).
• You have noted the current firmware/BIOS settings as the configuration data of the device
is deleted when the battery is replaced.
You can find information on this in the detailed firmware/BIOS description, see "Important
instructions and manuals for operating the device (Page 10)".
• The device is disconnected from the power supply.
• The power supply connector is pulled out.
• The device is open, see important information under "Opening and closing the backplane
cover (Page 68)".
• You have observed the local regulations relating to the disposal of used batteries.
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