Are these Lipos good?

[Serum]

They are the exact same cells that go into the evo20 packs from flightpower, but they also cost about the same..

They might be the exact same cells, but are they connected as good as the flightpowers, and are they the same quality? it's the same with lipo cells as with nimh's, there are different grades in quality.

One cell isn't the other.

What i know about the flightpowers; there is allmost till non imbalance during the charge. this tells something, right?