I have learnt a new issue with the battery backup module. I want to share what I have learnt with the community.
I did get some PM from community members that they have hard time pairing the modules. This is very unusual. I have seen some difficulties with pairing at much rarer instance. I ask the module back to investigate. I do not have any issue with the modules that comeback to me once I got it back. I also test the module before I ship them out. I know that the modules that I ship should be fine.
By share of luck in the past week, we experience a couple storm which knock down power in Washington. During this power down time, my Zigbee mesh was down. I had a generator that I use to power the hub and a new battery powered module. I was curious what would happen running one hub with one of my module only. With one on one setting between the hub and the module, it had hard time pairing.
The module can pair. However, the performance of the radio is much lower than I expected. This is an extreme test (running one hub and one repeater). However, the radio performance is differ so much with the older board without battery backup. I consider this as an issue.
Once I have power back, I cannot reproduce the issue anymore. If you have a dense Zigbee network in your house, I have been testing in such mesh. I have not seen any issue. I have a few GE bulbs throughout my house. When It power up, all my modules connect just fine. If you manage to get one module connected, the second, thirds modules can connect just fine. Once in the network, the module repeat and functions just fine. It can repeat other battery backup modules just fine.
I am not giving up on the battery backup module. I have started looking at the designing different way to do battery backup. I can probably do exchange with you at that time if you have any issue with the current one.
If you managed to pair, I would suggest to stay put. It is fully functional module. There is no firmware issue that I can see during this investigation. I personally are comfortable running the battery backup modules at my house.
I have very limited count of non battery backup modules. If you really need one as replacement, please let me know in PM.
I am sorry to bear such unfortunate new. My goal is to build a very good module for all of use. I have to take some risk in providing new features. Hiccup like this can happen.
I have learnt something very valuable here that allow me to build a better modules for all of us. With all the sensors, It gives major information of what you need in a room. It is a repeater that you can build your Zigbee mesh. Eventually, we will get a a module with proper battery backup.
I hope everyone have a good holiday season. Happy holiday and Happy new year.