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I'm trying to save you 6 ounces of weight and another switch. You don't need the battery redundancy. If you choose to go redundant batteries save some weight and money and go with a pair of the 1,100 mAh batteries. You could fly for a three day weekend without charging using a pair of 2,500's. Just like full scale, why bunker what you aren't going to need? It's like using a 60 ounce gas tank on a .40 size plane. You could do it, but performance takes a hit because of weight.

The switches Wild Hare markets have the dual power inputs, not the battery. My error on that. The battery itself has the power wire to the switch and the balance wire.