Received the 5000 lipo from bdebde today. He said that one cell had puffed, and it certainly had. Check out thepics below.
On a side note, gotta love the copper tab claim, only one tab is copper, the other is al. Plus the tabs are attached to each other in some method, looks like crimping to me. Does not look like resistance welding to me. I easily seperated them with a razor blade, and just popped them apart. No cutting or sawing thru the crimps. I really cannot see how this can transfer much power, and most likely indincates why the shrink melts off the wire end of the pack (happened on most of my maxamps packs too), heat from resistance.
The other 3 cells in the pack look fine, and all of them are in balance. I will try a load on them and see how they do.