Replacing The Backup Battery; Overview - Siemens SIMATIC IOT Operating Instructions Manual

Maintaining and repairing the device

6.3 Replacing the backup battery

Limitation of liability
All technical specifications and approvals of the device only apply if you use expansion
components that have a valid CE approval (CE mark). The installation instructions for
expansion components in the associated documentation must be observed.
UL approval of the device only applies when the UL-approved components are used according
to their "Conditions of Acceptability".
We are not liable for functional limitations caused by using third-party devices or
components.
6.3 Replacing the backup battery
6.3.1

Overview

Prior to replacement
Risk of explosion and release of harmful substances
Improper handling of lithium batteries can result in an explosion of the batteries.
Explosion of the batteries and the released pollutants can cause severe physical injury. Worn
batteries jeopardize the function of the device.
Note the following when handling lithium batteries:
• Replace the battery every 5 years.
• Replace the lithium battery only with the type recommended by the manufacturer. The
• Do not throw lithium batteries into fire, do not solder on the cell body, do not recharge,
66
WARNING
battery article numbers are as follows.
– IOT2050 SM: A5E50549527
– Other configurations for IOT2050: A5E44491494
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.
Operating Instructions, 03/2024, A5E39456816-AF
SIMATIC IOT2050