What’s the safest.. dual leads on a single pack or dual packs?
The safest system in the air is a matched parallel / redundant 5-cell Rx pack system. As well as backing up the vulnerable switch and connector it also avoids the remote possibility of a shorted cell, weld or battery interconnect strap failure in one of the packs taking you down out of hand.. parallel systems cover all the bases. The next best setup is a single 5-cell pack with dual leads and dual switches. The latter is lighter by the weight of one pack, the former a lot better for handling very large current draw. Both are far, far better than a single 4-cell pack in ANY application.
