We can re-build him.... (maybe)

I know from experience that battery packs are typically assembled from smaller, more common cells (such as AA size cells) wired together in a particular way to achieve the desired output.
Knowing this, I removed the cover from the battery for my old laptop to see what's inside.
A typical rechargeable cell (even the ones inside the battery in your car!) is 1.2 volts. This battery pack puts out 9.6 volts. 9.6/1.2=8; I should find 8 cells, wired in series inside here. (batteries connected in series (+ of one to - of the other) increase voltage. Connected in parallel (all + together, all - together) increase total current capacity)

Hmmm, not exactly what I was expecting to see, but let's look further.

Lifting up one of those big rectangles, you can see there are 4 cells. This is what I expected. Not entirely sure why there's what appears to be a thermistor in between the 2 "clusters", I'm sure there's a reason though. Maybe to prevent one from charging/discharging too rapidly and overheating, or maybe something to do with how the computer figures out remaining battery life- this is not my area of exepertise, all I know is if it's there, it's there for a reason, so it should stay. Now my problem is the current capacity of these cells- the voltage is normal (As stated above, I know they're 1.2 volts), but the pack is rated at 2400mAh. This is a lot, which explains the physical size of the cells (and, they're just old technology anyways) This is going to be my main problem in re-building this, since most cells I've found so far have topped out around 1000-1200mAh, meaning I'd have to fit twice as many inside here. (2 wired in parallel, those 8 sets of 2 connected in series to each other). Unless I happen across some random battery pack on clearance somewhere, this is starting to look like a futile operation. :(