Lg P310 / P300 Series Battery cell replacement

Hi guys,

first of all i want to introcude myself.
I am a science student from germany.

Warning to all people who are not familiar with basic electric.
Lithium-Ion cells can be dangerous due to faulty handling! I am not responsible for any for any consequences due to this manual.

I was quite unhappy because my original battery turned out to be defecitive just after 1 1/2 years.
Of course no warranty (only 6 months ).
I am also active in a german forum, there are several people who have the same problem like me!

Because a new battery for my LG P310 Tarsia costs about 200$ (156