Siemens SIMATIC Field PG P4 Manual page 46

Configuring And Operating The SIMATIC Field PG P4
Disposal of Used Batteries
Lithium-Ion batteries can be recycled. Their components can be used as raw
materials for new batteries or other products. Effective recycling of batteries is only
possible when the used batteries are collected according to type.
Notice
Observe the local regulations for disposal of recycling materials.
Charge-Status Indicator
The battery has electronic circuitry for showing the current charge status. The
electronics incorporate a metering unit which has to be calibrated at regular
intervals so that it can compensate for error. The chemical properties of the battery
change in the course of time, so the electronics have to relearn the battery's
characteristics at regular intervals. A calibration cycle ensures that the battery's
maximum charge capacity is at your disposal.
Notice
There is a danger of the charge-status indicator misinterpreting the actual capacity
of the battery if a lengthy period of time is allowed to pass between calibration
cycles. This can result in an unexpected shutdown with no prior warning.
Calibration cycle
Run a calibration cycle:
• Approximately every six months,
• if a prolonged period of time has elapsed since the battery was last used,
• if you think that the battery no longer operates at full capacity,
• if the programming device shuts down unexpectedly with no prior warning,
• if operating time on battery becomes shorter.
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SIMATIC Field PG P4 Manual
A5E00180080-04