Has anyone here used a lipo to make an external battery for their macbook?

[DucktileMedia]

I'm heading out on monday and dont have time to order anything but wondering if a 3s lipo is safe to use with the macbook pro. I havent measured the exact voltage but I think it is 12 volts. It would certainly be a good idea to have a line conditioner and voltage regulator of course.

 

[kloner]

that reg and filter on your plane will do it... not sure about the low voltage, might be safer on 4s

 

[yeehaanow]

How would you attach it, exactly? Hack into the power cable?
I think you can get proper solutions for this type of thing at a lot of places. Best Buy.. etc.

 

[DucktileMedia]

I'd buy a replacement charger and solder the mag lead to the battery. The problem with whats out there is that it is really expensive. I figured if I have what I need i can do this for $20. Kloner, yeah, I was thinking about exactly that. I just dont know how sensitive the mac is. I sure dont want to mess it up for a few more hours of computer time. I'll probably be passed out anyway!