I have one coordinator and one end device xbee s2 (2mW modules ) using ZB-Zigbee firmware.
If I configure the end device to send an IO Sample every 20 seconds, the range is awesome 30+ meters easy and study.
The end device was running off an 150mHA Lithium Ion Polymer Battery, I was able to run the end device non stop for 17 days when the coordinator was up and running from a connected power source all the time.
I ran the same test but this time I switch off the coordinator, the end device ran out of battery in 3 days.
My project requires battery powered end devices which will not be connected to a powered coordinator and because of their location they cannot be powered on or off.
The end device will sleep and wake up and try to send an io sample with the below settings.
My question is why is it draining the battery when the coordinator is power off. How can i minimize the power drain and still have it running on battery for 17 days when my coordinator on powered on?
Appreciate any help!