Diamond.infused

Have a couple questions. By updating firmware/software do you raise the watt cap of the Dna 200? Or is that a hardware upgrade? I have a DNA Duo (in the mail) and I'm wondering what the best 18650's are? 28650's technically. Does anyone know if the Turnigy LiPo battery, it's the only one i could find, will fit inside of that device? For the most part on reviews i have read i think it will but i don't know for sure. Thanks