I have a question for those of you who use one of these Caldwell systems. Is there a reason that the system seems to shut down after it’s been in use for a few hours? My cell phone suddenly ceases to pick up the picture after the camera has been working properly for close to three hours. The batteries seem to still have significant charges. Since I’m still trying to adapt to the computer age, I am at a loss for an answer. Could my phone possibly be the culprit even though it appears to function correctly otherwise? Any suggestions will be appreciated.