I bought recently a
PSP Slim model S110 Li-ion 3.6V 1200 mAh Stamina Battery Pack which is made in China for B$48. I thought it has the same circuit structure as I have seen on several YouTube videos but... it's
not! It's a freakin' fake! I just got ripped off!
It has
THIS on the inside:

...
Can anybody mod this thing?!
There are no genuine batteries selling here in my country and only the option left is to downgrade at shops (and see more money flying... GRRRRR!!!!).