mine is not the glacier mp4 player but a normal mp4 player which uses a nokia battery.
it has Sony TD - 98 written on the lower right corner of the screen.
I had many problems with the stock battery like - only 4 hours battery life, not charging properly and restarting issues.
I have solved all this, by using a nokia bl - 4c genuine battery. solved all the problems and gives excellent battery life.
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