Yesterday I got to go out a dig a little with DrBob and I noticed a problem I've never seen. While digging a hole as always my machine was on the ground next to me while I was using my SunRay Probe after I was finished and switched back to the coil I started to get up my machine made a series of low beeps each one getting lower and the screen flashed a warning or "power overload" and then shut off. The battery was fully charged when I started just 30 minutes prior to this warning. After I turned it back on all seemed to work properly. Hunted for a couple of hours and again when I was getting up from a hole the screen went blank and a series of beeps started again; this time they were steady beeps I hit the power button and the screen popped back on and worked fine the rest of the hunt. Has anyone else had any problems like this? just wondering if I may have problems coming on the horizon. Any help would be appreciated. Thanks