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ta_man · 05.14.2009, 11:51 AM

You do need an external BEC if you are running a single 4S pack.

If you run two 2S packs, one connected to each of the two inputs, you do not need an external BEC. But note with the two pack setup, one of the packs will be drawn down faster because the ESC internals and other electronics are powered by the BEC wich runs of of just one of the two packs.

	(#9)
ta_man RC-Monster Carbon Fiber Offline Posts: 214 Join Date: Apr 2009	05.14.2009, 11:51 AM You do need an external BEC if you are running a single 4S pack. If you run two 2S packs, one connected to each of the two inputs, you do not need an external BEC. But note with the two pack setup, one of the packs will be drawn down faster because the ESC internals and other electronics are powered by the BEC wich runs of of just one of the two packs.