Pocket Radar

I don’t think the battery charge would impact the device reading. Do you have a tuning fork you can use to verify the reading is off? Does PR allow you to change settings based on the angle of the device to the path of the ball? My SP2 lets you adjust for the angle so you get an accurate reading. 

I have the same PR model.  While I do get some false or completely blank readings at times, I sat next to a PBR guy using a Stalker Pro this summer and mine was very close to his readings.  His Stalker Pro has a decimal point (so XX.X) while the PR doesn't, but I remember thinking that ours were never more than about 1/2 mph off and I'll bet it had everything to do with our angles being slightly different.

I used to have the $120ish Bushnell gun that is general purpose and learned that it's fairly inaccurate with baseball.  PR's were consistently reading 5-8 mph faster than it, so out it went.

I think the PR is one of best products to come out for baseball in years.  Affordable when compared to Stalkers and the like, but I don't look anywhere near as toolish using it as I did with the big Bushnell.  Granted, I might still look toolish for any number of others reasons, but that's for another thread.

I traded in my ball coach for the smart coach. I use a portable charger as this is a real battery hog. I do find the reading comparable to a stalker in the proper angle. It is terrible on the off set