[jhautz]

jp, welcome to the forum.:018:

Your original post is slightly confusing. :confused: I think this is why you didn't get a response.

I'm not quite sure what motor it is you are talking about here. (BK 20S?) I am guessing you mean a BK Wanderer motor. It sounds like its a S (short) can motor with a reletivly high turn. Maybee a 19turn or so. If I am guessing right you will need a bigger motor for a sucessfull setup in an emaxx. at least an L size motor, but preferably an XL size motor.

The 9918 ESC should work fine.

I also think that you mean you have 2 7.2Volt battery packs and 2 9.6Volt packs. You want to use these in series, not in parallel. In parallel you will double the capacity of the packs not the voltage. Hooking 2 9.6v packs in series will achieve a 19.2volt setup.

A good motor choice for 16 cell (19.2v) setup would be BK Wanderer 9XL or the Feigao 540C 9XL motor. In an emaxx this would give you some very nice power and speed and still acieve pretty nice run times.

If you can let us know better what motor it is that you have we might be able to help you better. Can you be more specific as to which motor you are refering to?