I have an Ultra camera. Works fine with battery alone. When connected to a solar charger, though, it says "A charging fault has been detected..." As soon as solar charger is disconnected that error goes away. I disconnected charger. I unplugged cables. I reconnected cables and charger. I removed and replaced battery. I even connected a second totally different solar charging unit. Same error.
Model: VMC5040 | Arlo Ultra Wire-Free Camera