Get battery level from a Xbee series 1?

XBee & XBee Gateway XBee - 802.15.4
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#1

Is there any way to get the battery level of some source (coin battery, AA pack…) connected to the Xbee series 1 module?
I mean some command to get that info or to get parameters to calculate the battery level.

Thanks!

#2

To get that data on this product, you would need to use an ADC line connected to VCC.