I’ve put 2 sets of good batteries in one my cameras and the app still reports they need to be replaced. Have read several solutions throughout the forum, but still haven’t found a solution.
Welcome to the forums! Rather than redoing what you’ve already done, what have you tried?
What type of batteries have you put in the device, and do you have a meter by which you could test the voltage?
Let it run for a few days and you may find the low battery goes away all by itself. Happens on my system. Camera temp and battery low are notoriously not accurate.