Battery confusion

[Quickstart3700]

I was planning on using this http://www.ebay.com/itm/1-PCM-Prote...647?pt=LH_DefaultDomain_0&hash=item3372a94f77 as my 14.8v protection circuit for my gamecube portable. The problem is I have 8 3.7v 1200mah lithium ion cells that I harvested from a laptop battery. I was thinking if I could wire the cells like this:
Make 2 cell packs with each in parallell for a total of 4 3.7v 2400 mah packs and then wire them in series using the protection circuit for a 14.8v battery pack with 2400 mah.
If I can do this, how long would the gamecube battery survive? Also there was a pcb inside the laptop battery pack that seemed like a protection circuit but I am too skeptical to try and use it because the circuit may be inside the laptop itself. If i could use that pcb it would save a lot of time and hassle.
Thanks in advance

 

[vskid3]

That would work. The description has the wiring instructions, just treat every parallel cell pair like one cell. Not sure how long it would last, probably 1-2 hours, with 2 being very surprising. How old are the cells? They lose capacity with time and use.

 

[Quickstart3700]

Thanks again for responding. The cells are pretty old, so my battery life prospects aren't looking very well. However, the only reason I have the batteries in is so that I can show it off that it can run without plugging it in. At least, for now I'm going with this. If I can find other batteries that can give me good results for cheap I'd go for it.