The network is configure in synchrounous sleep with 1 coordinator set with SM(7) and 25 remote set with SM(

. The grove module alone drains only 7ma and 25ma with the xbee module sleeping mode.
At txPL (PL 0) current drain is 50ma.
The mesh network works fine with a coordinator and 25 remote. Each remote unit read 2 analog temperature sensor and one analog humidity sensor. These 3 sensors drains less then 1ma. The remotes XBee AA battery have to be change around every 100 hours. Any suggestion to get a lower power drain on battery
Regards.