psu | BeSeen

For backup battery, check below:

https://www.amazon.com/dp/B00K8V30D0?th=1

Then system will not break even in power failure, the battery will work automatically in that case. And when have electricity, the battery will be automatically charged. 

For the 1st time battery connection, please at least charge it for 10 hours. Fist time charge is slow to make battery full.

 

For how to wire, check the below diagram:



Then system will not break even in power failure, the battery will work automatically in that case. And when have electricity, the battery will be automatically charged.  

If you want to last longer, You Can use multiple battery and please connect them in parallel

[ If you need remote management // one cloud portal to manage all doors // Phone app to fliexible control .etc . ]

Kindly check from:

https://beseencontrol.com/Web-Cloud-System.html