What's inside : Dell m4600 laptop battery 

Dell m4600 laptop battery

This battery is reused by Chinese craftsmen, the cells are old cell, good type, of course if not good then with dell m4600 it will soon destroy these battery cells, today I Breaking it out easily by hand without tools, with a genuine battery, opening it manually is impossible.

[@mariuszmater6313]

very professional multimeter with light indicator. ;-)

[@tfortoons7005]

It is very expensive battery
I want to repair my battery
I also have same like this