Thunder Power RC Adrenaline 4s 1300 mAh 14.8V 80C LiPo, XT60

Right out the gate these have been my top seller. It's easy to believe, as I've used this pack and I LOVE the punch it provides. I can really abuse these packs and run 'em HARD... the loop that's built into the pack safeguards the balance plug - a huge plus! Definitely beats using rubber bands and fuddling with that mess! These are a few grams lighter than other packs I carry. I believe it's because they don't have the aluminum case around the cells. The weight savings benefits do add to the racing nature of these packs - built for speed. Give these a try. They're assembled in the USA. My lead time to get more takes a few extra days since they're made to order it seems.