Mobilizing New Low-Powered Hardware

[JoshTheJoker]

So, recently acquired some Win 95 laptops for free, and just because of how big they are, I really just wanna put some low power parts in it, namely this mobo and this GPU. The combined TDP of both is 49 watts, while the pentium alone in my Win95 runs at 59 watts, so I know powering it wont be difficult. My question though, is how do I connect a laptop battery, or whatever I decide to use, to this mobo?

 

[JoshTheJoker]

Would this PSU work? I feel I could connect this to some sort of external battery and be set