Internal Li-Po Battery - MTX -3G-JAVA-IoT User Manual

MTX-xG-JAVA-IoT Family
4.12

Internal Li-Po battery

MTX-IoT modems ordered with Battery (B) option mount an internal 3.7V 1650mAh Li-Po battery. The
units are shipped with the battery disconnected. To connect it please open the removable panel of the
device enclosure and locate the battery jumper near the SIM card holder and the DIP switches, just
like the picture below:
Please set the jumper position like the following picture to connecto or disconnect the battery
For the first time plug in the power supply to the device for around 5 hours to fully charge the battery.
The battery level can be known using the AT command AT^SBV. The command result is given in mV.
When charging, the previous value is increased by +200mV.
We do not guarantee fully working features for battery voltages below 3.6V. We strongly recommend
that you switch the modem off completely when this occurs.
The duration of discharge depends on the end application. It is very sensitive to transmission (Voice
and Data) so we recommend making as few as possible and keeping them as short as possible. Please
disable GPS, or keep it in a low power mode when possible to extend battery life when longer periods
of use (without charging) are required.
Keep in mind that the battery will be 100% operative once a few charge and discharge cycles have
been performed.
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MTX M2M® by MATRIX ELECTRONICA S.L.U