wanted 2 cell 7.4 v lipo battery -weight 20-25 gram
kp
i have a orange 350 mah 3s... but i separated the cells for a project...its quite lightweight
I too was in search of a similar lipo for micro quad build.
Ended up buying 800mah 2s. Which is 49gm.
weight 28 grams check this 2s battery
http://xyzhobby.com/shop/giga-500mah-2s-35c-7-4v-lipo-battery/