We all know the display screen on the Etrac can be difficult to see so I tried a pair of those yellow sunglasses that increase contrast. NOPE, that did no good. If anyone has a pair of those blue shaded sunglasses that help you see golf balls, please try them and reply if they help or not. I'm hopeful but not too much. At least with the new RNB battery you can use the backlight without totally draining the battery.