Help with a battery
 

Hello. I have a dead player. I do not know what's wrong with it, but it does not turn on. So I think maybe something is wrong with the battery. After I opened it, I saw the battery and there was written 3.7V. I searched for such batteries on ebay and I found a lot of them with different mAh. On my battery there is no such an information written. So can you help me to identify what type of the batterie should I buy? I add some pictures of the item:


http://img32.imageshack.us/img32/1471/dscn6391p.th.jpghttp://img805.imageshack.us/img805/8153/dscn6394.th.jpg http://img692.imageshack.us/img692/1569/dscn6395.th.jpg http://img5.imageshack.us/img5/5510/dscn6396c.th.jpg
http://img849.imageshack.us/img849/8362/dscn6397.th.jpg http://img854.imageshack.us/img854/7656/dscn6399.th.jpg http://img703.imageshack.us/img703/2601/dscn6400.th.jpg

Your pictures are pretty small. If we need us to see numbers, you have to make them larger.
As for battery, most any will do, as long they can fit inside the player. Most players are based on Li-ion what I know. If you can find one with about same dimesion, it will do.

Battery
 

Sorry for the pictures. I tought they are bigger. These are the links to them in bigger size:

http://img32.imageshack.us/img32/1471/dscn6391p.jpg
http://img805.imageshack.us/img805/8153/dscn6394.jpg
http://img692.imageshack.us/img692/1569/dscn6395.jpg
http://img5.imageshack.us/img5/5510/dscn6396c.jpg
http://img849.imageshack.us/img849/8362/dscn6397.jpg
http://img854.imageshack.us/img854/7656/dscn6399.jpg
http://img703.imageshack.us/img703/2601/dscn6400.jpg

They can fit I think :) But event the volts are the same, mAh are different. And I do not know about them from my mp3.

Yes, voltage is same for any single cell battery. mAh generally just means how long the battery last. No good to know what yours is. I would go for dimension then. :o
Can't say either the battery really is your problem. Can you connect the player to your pc?

It just do not turns on. What if not the battery causis this problem? Thanks for the answer about the mAh. I have just knew that the mp3 has fallen of the hands and that caused the problem. Have some ideas?

No, sadly I don't have an "accurate" answer for you. It can like many other things also be the firmware related issues. I'm just another newbie here and have my own dead player.
Try read all the sticky threads here you can. Good luck.