So I went ahead and got a 11.1v 2650mAh 20c lipo only to find out that the dimensions advertised were incorrect. The only battery I can find that will fit is a 1500 mah and in my experience, I dont believe this will give me the run time I need. Can I buy two of these packs and create a connector to wire them in parallel? This will allow me to balance charge them separately but I'm not sure how safe it will be to use them considering they might not have the same internal resistance. Im also curious how it will affect the C rating. Would it make it a 40C "pack?"