Happy Lunar New Year, Seestar. I recently received my S50, and am using a Samsung A9+ to load the app on. I was shooting Venus and the Sun early this morning. Have two questions, I had a problem doing the compass calibration, it took a very long time. I think it might be attributed to the book cover for the tablet has some pretty strong magnets in it and was withing a meter or less of the S50, would you agree?. Second observation is related to the dew heater, even though I was inside and I had a battery attached to it I had the heater on just to watch the battery discharge to see how long it might last with the heater on. About 30 minutes into my session my S50 warned me about the temperature being too high and charging would be shut down. I'm using a Talentcell Rechargeable 12V 6000mAh/5V 12000mAh DC Output Lithium ion Battery Pack with the supplied cable. Is the battery the issue? I have an infrared temp gun and the temp on the S50 was at 70° F.