[E-Revonut]

I can't say for sure but I would have to think that batteries from the same manufacturer and the same model or series would way about the same for a pack that contains the same amount of energy. Your 6s 3300mah is aprox 73.25 watt hours so looking for an equivalent 4s you would be looking at 4950mah so basically a 5000mah pack. I bet there about the same weight.