Specifications

AT Command Set
TC35-ATC-01-V02.10 Page 112/145 02.10 / 23.05.2001
6.5 AT^SBC Battery charge and Charger Control
Test command
AT^SBC=?
Response
^SBC: (list of supported <bcs>s),(list of supported <bcl>s),<mpc> module power
consumption
Defined values
<bcs>
0 No Charging Adapter is connected
1 Charging Adapter is connected
2 Charging Adapter is connected, charging in process
3 Charging Adapter is connected, charging has finished
4 Charging Error, charging is interrupted
5 Wrong Charging Temperature, charging is interrupted while temperature is in
forbidden range
<bcl>
Battery capacity
0 battery is exhausted or capacity value is not available
0, 20, 40, 60, 80, 100 percent of remaining capacity (6 steps)
<mpc>
Value (0...5000) of average power consumption (mean value during some
seconds) in mA. This means, that <mpc> is the average value of the power
consumption of the ME and the current value given by the AT^SBC write
command.
Read command
AT^SBC?
Command returns battery connection status <bcs>, battery charge level <bcl>
and module power consumption <mpc> of the ME.
After connecting the Charging Adapter the charging process start automatically.
While charging is in progress (Charging Adapter is connected) battery capacity
isnot available!
Response
^SBC: <bcs>,<bcl>,<mpc>
Write command
AT^SBC=<curre
nt>
The write command sends the actual power consumption of any external
application. It is necessary to send this information, because otherwise the ME
cannot properly control the charging process.
This command registers the serial port as the output channel for unsolicited
result codes for charging.
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<current> Power consumption in mA (0...5000).
Note: Maximal power consumption is 70 mA if the 2.9 voltage
power pin is used.