Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 646)

Battery Commands
Wavecom Battery Charge Management +WBCM
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WM_DEV_OAT_UGD_049 - 001 VOLUME 4 August 23, 2007
Command Responses
AT+WBCM=2
Note: Get the battery voltage during the charging
+WBCI: 2,4110
OK
Note: The current battery voltage is 4.11 V
+WBCI: 1
Note: The battery voltage has reached the max level.
The battery is considered as charged and the charging
is stopped.
AT+WBCM=0,1
Note: Enable the battery charge unsolicited
indications out of charge
OK
+WBCI: 3,4195
Note: The current battery voltage is 4.195 V.
AT+WBCM=3,0,4200,,500,3000,0,500
Note: Configure the battery charging parameters
(depends on ChargeMode parameter); in this case
the charging mode is Ni-Cd/Ni-MH
OK
+WBCI: 0
Note: The battery voltage has reached the minimum
level. The battery is considered as discharged. If a
charger is not plugged, the product is turned off, with
the +CPOF command behavior. Else the charge
automatically begins.
23.2.6 Notes
Please check charger and battery recommendations.
If the battery charging is started without charger plugged or with an abnormal
temperature or voltage, the charging does not start. +WBCI: 3 unsolicited indications
are sent. After solving the anomaly, it is necessary to start again the battery charging.