MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
You may need to use a more powerful power boost, I don't think they make a larger model with battery charger included though , so you'd have to wire up a separate one.
I'm actually surprised that you're having an issue though, everything I've seen about the pi2 is that its power usage is just slightly higher than the B+, and I've run mine from the battery with a WIFI module in the USB with no issues.
L-ion / Lipo Charger