Weight against Voltage?

[Nick]

A question about Lipos/Cells.

My Triton only does 14.8v Lipo (5s). I don't want to charge 2 seperate packs, as waiting upto 2 hours for both to be done isn't worth the effort in my opinion.

So a Lipoly 4200mah 2S2P 7.4V Pack, if I used 2 (meaning 4s right?) I could charge them both and get 14.8v and some nice mAh.

However if I got 16 cells of IB3800. Which is 19.4v (in Triton limits). Which is best? The Lipos are lighter and powerful but I'm restricted by the charger but the 16 cells gives more volts?

Also, what to people think of GP2200s cells?

Any general explination would be really useful, thanks.