How to change accumulator - battery : NWZ 81x / 818

[jalitt]

Hello!
I am writing from Germany - I am very sorry for my "bad" English, but nevertheless maybe you can help me:

concerning SONY NWZ 81x - Series -

it is possible to open easily the back of the player (two screws) and get access to the intern accumulator (battery) of the player.

- Does anyone know how to change this accumulator/battery then?
- What type is it?
- Where could I get an second (same) one?
- Is it easy to replace the accumulator/ battery?

Thank you very much for all your help!
Kind regards

[CrowdAds]

[Wings]

I don't know if that is possible or if you even want to try and do it.
Is your battery dead or you just want a back up?