Samsung YP-T7 Battery Replacement

Battery has reached end of useful life and needs replacement.

http://www.anythingbutipod.com/forum/showthread.php?s=ee40c67162626fe4e5a9123d90de1646&t=64419

Before you undertake this exercise, make sure that you are confident with your ability to handle small and fiddly parts as the unit is pretty delicate and sensitive to static electricity.
You also want to make sure that you have a suitable replacement Li-Ion battery.
At your own risk, the following are the basic steps required for the TomTom One V3.
You need to very carefully:
0) Check that GPS is fully functional (even while plugged to a power source) to make sure that your replacement did not cause any existing issues.
1) Power off and remove all plugs and SD card if applicable
2) remove all (four) security screws with a special screwdriver
3) gently lift the casing away from the screen paying particular attention to any wiring like the speaker wires.
4) unplug the speaker so that you can remove the cover completely. (Remove any holding tapes as required)
5) unplug the battery pack (Li-Ion, 3.7V, 1200mA) which has a small connector with 3 wires from the motherboard. The battery is usually secured by double sided tape that needs to be gently unstuck.
6) plug the replacement battery with 1200mA or higher current ratings (higher current is better, lower is Ok but will deliver shorter usage time) and secure using (re-used) double-sided
tape.
7) Re-attach speaker
8) Re-assembled back cover but do not tighten the screws too hard!
9) Recharge the unit battery making sure the unit is still functional while plugged in to a power source (PC or USB charger).
10) Enjoy your revived GPS!

Hope it helps: let me know how you go!

I believe your player has a faulty battery. If you say it's new, bring it back to the store and get a replacement.

you need a battery replacement...try batteryplanet.com 

replacement battery at http://www.xtreamgadgets.com/product.php?productid=132797&cat=10001980&bestseller
must remove external card from slot before removing 4 screws at rear of unit. cover snaps off, unplug speaker wire, unplug battery, new battery plugs in, reassemble.

This doesn't required a battery. It's recharged by a usb cord, which should have come with the mp3 player.

Try getting a new USB Cable.
I myself have had the Same Problems.
And that seems to help.

Replacing the battery should be pretty simple.

You can purchase a replacement here
http://www.samsungparts.com/part_detail.asp?catalog%5Fname=Parts+and+Accessories&product%5Fid=4302-001205&search%5Fmodel=YPT9JAB

Your battery may need to be replaced.