Safety instructions
3.4 Notes on battery mode
SIMATIC IPC MD-57A
Operating Instructions, 09/2023, A5E52775302-AA
33
Current consumption in battery operation
If the following functions are enabled, the power consumption is relatively high, even in
sleep mode (Hibernation):
• iAMT: If you use Intel® AMT, the battery will be discharged in 1-2 weeks.
• WOL: If you use "Wake On LAN", the battery will be discharged in 1-2 weeks.
• USB Charge: If you use the USB charging function and power a cell phone via USB, for
example, the battery will be discharged in a few hours.
If the DeepSleep/Sx settings in the BIOS are enabled, the device only draws a very small
amount of current from the battery when it is switched off:
• Charging via USB, e.g. of cell phones, is switched off.
• All status displays are off.
• The battery can be stored installed in the device for several months.
However, if you plan not to use the device for a longer period of time, you should remove the
battery from the device as a precaution. Ideal storage conditions for the battery pack:
• Ambient temperature of approx. 20 °C and
• battery charge level of approx. 50%.
The battery pack may by completely or partially discharged (e.g. due to self
-
discharge) during
commissioning. Before full discharge, when only a residual charge remains, the battery status
indicator lights up red in battery mode as a warning. End your work
and save your data. There
are now only a few minutes battery running time left.
Please note that for a complete disconnection from the mains the mains connector must be
removed.
Service life of the battery
Due to the technology used, the capacity of the rechargeable battery decreases over its
lifetime. For this reason, the rechargeable battery is excluded from the warranty in the event
of a capacity reduction, as is the case with all manufacturers of comparable devices. In the
case of a significant drop of efficiency we recommend that you replace the battery. Use only
Siemens original spare parts.
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