Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  108  2015-08-03 
Parameter Saving 
Mode 
NO_SAVE 
Max Response 
Time 
- 
Reference 
3GPP TS 27.007 
[13] 
Note 
3GPP TS 27.007 specifies 30 seconds, so SIMCom deviates from the 
specification. 
3.2.52 AT+CBC Battery Charge 
AT+CBC Battery Charge 
Response 
+CBC: (list of supported <bcs>s),(list of supported <bcl>s),(<voltage>) 
OK 
Test Command 
AT+CBC=? 
Parameters 
See Execution Command   
Response 
+CBC: <bcs>, <bcl>,<voltage> 
OK 
If error is related to ME functionality: 
+CME ERROR: <err> 
Execution 
Command 
AT+CBC 
Parameters 
<bcs> Charge status 
0 ME is not charging 
1 ME is charging 
2 Charging has finished 
<bcl> Battery connection level 
  1...100   battery has 1-100 percent of capacity remaining 
vent 
<voltage> Battery voltage(mV) 
Parameter Saving 
Mode 
NO_SAVE 
Max Response 
Time 
- 
Reference 
3GPP TS 27.007 
[13] 
Note 
This command depends on hardware and only be used when battery is 
charging. 
3.2.53 AT+CUSD Unstructured Supplementary Service Data 
AT+CUSD  Unstructured Supplementary Service Data 










