So I have been researching battery options. I see a lot of cool ideas on the forums about battery holders a couple of you are building and other things about charging and all that GREAT INFO !!!
However the one thing I haven’t seen is any mention of the 21700 cells … they seem to have a higher Mah rating and a little cheaper to get ahold of. I guess what I am asking is other than the physical size ( obviously the 21700 is bigger) are / would there be a down size to building a pack with these cells to get a longer run time ?