Just a simple thought. Rather than tearing down the WCO enclosure, and rather than having to lose monitoring for the entire time the camera is brought indoors to charge, and rather than running an outdoor power line and void the warranty, one could instead attach a small battery (common USB charger up to 20,000 MaH or so) on or adjacent to the thing and in a more reachable location. Then that battery could be very easily swapped without affecting the camera position or interrupting monitoring.
Yes, this is pretty obvious.
Yes this doesn’t change the fact that the internal batteries will eventually swell / burst / die.
Yes, it still technically voids the warranty (because it leaves the camera’s buttflap open).