RE: Zippy Compact 5S 5000mAH question
FWIW, all 4 packs have the same labels and identifying marks, one of them is 1/8" narrower.
I flew my new (to me) Xigris yesterday with these batteries. The flight seemed OK (plane is still very new to me, I don't think I would have noticed any slight variance in power). But when I recharged the pack, one of the cells had triple the impedance of the other 4 cells (8.7milliohms versus 2.8 milliohms)
I'm guessing the pack was somehow mis-assembled and the high impedance cell is a lower mAH rating than the other 4 (5000mAH). I am WAY past the Hobby King return windows for batteries, the downside of buying in advance.
The "regular" Zippy 5000mAH 25C packs are performing well so I will likely pick up a couple more of those and chalk the bad Zippy Compact pack up to experience. I'll wait to just before the start of next season before buying any more packs so I can try them out within the warranty period.