MY twin 2s came today, soldered up some xt90 plugs and charged er up. I have to pack 1 battery where the original one goes, very loose inside and trim out the cavity right above it to squeeze in the 2nd. Man these packs are LIGHT. I messed with it only a few seconds inside, and DAM does this thing pack power. I also got yelled at for leaving black rubber lines on the floor. Cant wait to test it out once the batteries are secure!

20180309_1626301 by Corey S, on Flickr
20180309_1627001 by Corey S, on Flickr
20180309_1627131 by Corey S, on Flickr