FMA Direct Lipo Questions

[markland556]

Well im looking at LiPo batteries and the ones from FMA direct seem awsome. I have some questions:
1. With the Scorpion 6400 pack can i run 2 of them in series for my ESC?
2. The battery provides 5-6v (i think) to the receiver, if i run 2 batteries how would this work.
3. How are you supposed to set the charge current without a display telling you exactly what it is??