Roughly 14lbs all up. The batts are 5000mah a piece, running in parallel. So pretty much have a 5s 10,000mah pack in there. To be honest i have never run a brushless truck until today, so comparing to the old e-maxx tranny with the titans, i like it. When you take faster corners and the inside wheel starts to lift it seems to settle it down a bit more.
What center diff are you planning to use on the lightning? I've heard torsens are weaker than spyders so i would be careful running one with a 'Bolido', come to think of it, id be careful running anything with a 'Bolido', dont forget to wear safety glasses in case parts of the spur gear ping off into your eyes