New 500 Wh battery with rockguard and expander: 3,15 Kg
New 700 Wh battery with rockguard and expander: 3,85 Kg
or
500Wh battery 6 lb. 14 oz.
700Wh battery 8 lb. 6 oz.
You may want to visit the specific Specialized forum for your questions. The questions you are asking have already been...
I just did the invisiframe to my new Levo Expert. Wow! what an awesome fit! It did take me 3 hours and a lot of patience to install it, but it was well worth it. I highly reccomend it.