[glassdoctor]

4s2p is a "4 cell" 14.8v pack.... but does have 8 cells inside. The 2p just means it uses pairs of cells in parallel to make up the total mah capacity of the pack. For example a 4s2p 5000 pack would be made using a total of 8 2500 cells. The 2500 cells would be put together in pairs to make 5000 "cells" (or batteries, technically).

You really should be using a separate source to power the rx and servo on 4s/14.8v.... use either a UBEC or RX battery. It will keep the Quark cooler and possibly prevent a complete meltdown.