From a quick look at his previous 2 posts, I believe he has a 396XT.
I have the simmilar 346 XT and have never seen that happen, however ive only had it for about 3 months. Are you using the charger that came with your scanner?
Had the very same problem. Changed batt, new charger. Problem fixed.
This is after it went back to uniden three times without it being fixed. It was a intermitten problem.