It's been a while since I've been able to fly any of my planes. I had some bad luck with my lipos and had none to fly with. Nothing explosive just over drew and now they're dead!. So it's been even longer since I've purchased batts.Recently I purchase several Zippy Flightmax 2200mah 20-30C packs from an e-bay reseller. I'm usually a little skeptical of batts on ebay which claim high C rattings so when I got these I was a little on edge. I know that the technology for lipo batts is ever-changing and packs are lighter/smaller than the packs that were available several years ago. Did I say that I'm a skeptic? Is this a true statement from others? Are they in fact lighter and smaller (while being higher in cap and C)? I know the packs I got are physically the same size as the 1800's that come with the Parkzone Trojans but have 400 more mah and the C is 20-30 versus 12.Online I've not found a lot of bad regarding the Zippy packs outside of the balance plugs are a weak point so folks recommend taping them down.