Hello, guys! I tried to fix battery pack (which doesn't keep power anymore) - opened it, put new batteries (UltraFire 6800mAh 3.7V)), soldered properly wires, measured with tester - all is OK, 12V. But when I plug the pack back to notebook, it doesn't start (but works from AC though). What can be problem?
Also I found strange detail on battery board - 5mm cylinder 1.5mmø with shiny black cover and long, soft 2 wires. Can it be something like "protection from opening box"? Say, if light comes on this detail, it doesn't pass circuit anymore. This is my guess, yours welcome too!
Thanks!
PS
Here is that strange detail, but on red wires: http
/img.diytrade.com/smimg/657906/33685897-174507-0/Protection_Circuit_Module_PCB_for_11_1V_Laptop_Battery/8e97.jpg
Also I found strange detail on battery board - 5mm cylinder 1.5mmø with shiny black cover and long, soft 2 wires. Can it be something like "protection from opening box"? Say, if light comes on this detail, it doesn't pass circuit anymore. This is my guess, yours welcome too!
Thanks!
PS
Here is that strange detail, but on red wires: http
/img.diytrade.com/smimg/657906/33685897-174507-0/Protection_Circuit_Module_PCB_for_11_1V_Laptop_Battery/8e97.jpg
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