Siemens Automation System S7-400 - Manual (Page 143)

Commissioning
6-15
Automation System S7-400 Hardware and Installation
A5E00850741-01
The following figure shows how to insert two backup batteries in a double-width
power supply module.
!
Warning
Hazardous to persons and property, risk of pollutant emission.
A lithium battery can explode if treated incorrectly; improper disposal of old lithium
batteries can result in pollutant emission. The following instructions should
therefore be observed without fail:
• Do not throw new or discharged batteries into a fire and do not solder onto the
cell body (max. temperature 100° C). Do not recharge, there is a risk of
explosion. Do not open the battery, and only replace it with one of the same
type. Obtain the replacement via Siemens (see the Reference Manual, Module
specifications appendix C for the order number). This will ensure that you have
a short-circuit protected type.
• Old batteries should be disposed of with battery manufacturers/recyclers if
possible, or as hazardous waste.