those look suspiciously like the battery that's already in there... if the 1800mAh claim is true than I'll get 2.5 times the runtime out of those... It would be like 24 hours+, more than enough... Also they also only have 2 cables, leads me to believe that they use a similar charging circuit like my battery needs...
Well, they are like 8 Euros, so I'll give it a shot... I'll let you know how it goes.
And thanks a lot! You've been very helpful!
Lastly: Suppose I wanted to install TWO of those rather than one, could that work? How would I wire that? Sequentially? Or Parallel? I remember hearing something about that in school... ;-D I guess it must be parallel?