No those are junk. Buy these instead:
https://www.racedayquads.com/collections/rdq-series-batteries/products/rdq-series-7-4v-2s-3000mah-5c-fpv-goggle-lipo-battery-w-charge-indicator-barrel-jack-xt60
Using the Emax motor/esc combo available from cyclonefpv.com. They had it on sale back in December for $20. Yes you heard that right, four motors and four 30 amp escs for $20. Finally got around to building it:
So you want to take off with four motors and switch to two motors in mid air? Sounds cool I'm sure it's been done but i don't think anyone here has built one.