Originally Posted by
heavyjeffd
Also keep in mind that bullet connectors from batteries, individually, are only carrying the voltage from that cell. So in the case of the 811E, each bullet connector in the battery is carrying 4.2v from the battery.
Not correct. Each connector in a series set-up like the one with two 7.4V lipo packs, like in the 811E, will have the total voltage of the packs (14.8V), and they will also be "exposed" to the total current draw of the system (and not divided by how many connectors you have).
Regarding the number of connectors, more connectors usually equals higher resistance for the current to flow, and therefore more heat is generated. Heat is the primary enemy in any system and can kill connectors and other components over time.