My battery fully charged but after some time(plying song) battery fully down.not plying songs .tha bttry not down.working 7 hour

take the battery out of the player, then charge it without the battery! for just a minute, then disconnect it again, put the battery back inside and charge it again.

You should get about 4 hours for a fully charge on most laptop tops that are in use even longer in just standby.

If even affer charging for a long time the battery is draining off you will need to change the battery. Remove cover carefully test and confirm before you replace. attempt only if familiar and to do it carefully.Good day

Hello there :)

Try to chance the battery and see if it helps or read this site :
http://rubensmenswear.com/pages/photographs/oakley/mp3/oakley%20thump%20faqs.htm

The write on the site :
5. I'm sure my THUMP is fully charged, so why doesn't it play music?

• Make sure the volume is not set too low to hear.
  
• Make sure there are song files stored on THUMP. Connect THUMP to your computer and open the folder that shows the contents of the THUMP memory
  
• Make sure you have the correct music file formats loaded into the THUMP memory. Currently, THUMP plays MP3, WMA and WAV file formats. No other music file formats are supported at this time.
  
• Make sure the WMA music files you are trying to play are not protected by DRM. (See below for more information on DRM.) If the song files are protected by DRM, you need to download the DRM Enabled Utility found at www.oakley.com/thump.

6. Why can't I get a full six hours of song play time out of THUMP?

• Many things affect play time, including the volume level, file compression and music file format. Also, lithium ion polymer batteries gradually lose their charge while not in use. These batteries are also susceptible to temperature.
  
• Even though they represent the best technology available, lithium ion batteries do not perform best in high heat.

7. Is it best to completely drain the THUMP battery before recharging?

• It makes no difference. Lithium ion batteries have no "memory effect" like older technologies such as nickel cadmium, so you can charge them at any time - even when they are not fully discharged.

Hope thats helps
If not then try to return here

Please rate my answer :)

You might have multiple issues. On the one hand, the songs you have tried to load could be in the wrong format - I know that the specs say that it reads WMA's, but there are many, many asterisks behind it's WMA playback ability. I would only load songs in Mp3 format.

Additionally, your DB is corrupt. Download the newest version of the Philips Device Manager for your model # at www.usasupport.philips.com, and then click the "Update" function once it is installed. The update wil lresolve your issue.

-Tha Mp3 Doctor

Make sure the hold/lock switch has not been activated.
If it is definitely unlocked, then press and hold the power button for about 5-7 seconds until the player turns on.

-Tha Mp3 Doctor

Make sure the hold switch is not engaged.
Remove the songs from the player and then reload them. If they are froma subscription service, make sure they do not have fixed-term licenses on them. Right-click song --> Properties --> digital rights or media usage rights
Use Windows Media Player to view the songs that are stored on your mp3 player - best to view them in the "Sync" tab. Find the song that you want to delete, right-click the song, and select Delete (or left-click and press Delete on your keyboard). Voila!

-Tha Mp3 Doctor

hi, i got this for christmas and you need to make it go dead and FULLY charge it or the battery weakens, also have you tried to turn it off by holding the middle button for 10 seconds? and when putting songs on it even after it sais it is complete on the computer screen still keep it on the charger connected to the computer for a while, that same thing happened to me but when i tried again and let it charge my song was on there.

In order:
*The battery life specs listed by the manufacturers are based on ideal laboratory conditions, and are almost never right. (You'll also notice that you don't actually have a full 8GB's, and that it doesn't take as long to charge the unit as the manual suggests. And the big one - this player will not fit as many songs on it as the manual suggests.)
*Four hours is not unusual. Sounds about right.
*The battery is not replaceable on this particular unit.
* If you can listen to your songs, they are formatted correctly. Mp3-format songs take up less space than wma's, so you can fit more mp3 on a player than wma's, usually.

The player seems to me to be operating normally.

iPod batteries are cheap on ebay...like $5...and come with installation instructions. Try installing a new battery and see what happens...?