Long term (4 year) A123 26650 findings.

Jup, Zippy's/Turnigy/Flightmax I never bought an other LiPo brand as the ones from Hobbycity so I don't know anything about the quality from the Flightpower/Hyperion/ThunderPower packs. They'll probably be better, but for the price of a LiPo from Flightpower etc. you can get 3 Hobbycity packs, so I'll stay with them for now.
I've seen many people using LiPo's for their E-Bike, they all seem quite happy with LiPo's.

Those 10Ah cells look awesome, but quite big

Someone at I thought RC-Groups also said these China ones are old used cells, but nobody knew that 100% for sure.

[A RC Dude]

Originally Posted by Byte

I don't know anything about the quality from the Flightpower/Hyperion/ThunderPower packs. They'll probably be better, but for the price of a LiPo from Flightpower etc. you can get 3 Hobbycity packs, so I'll stay with them for now.

i've had two trackpowers 2 zippys, and now 2 truerc's. both of my trackpowers in a rustler with MM7700kv system lasted abut half a year before they puffed for no reason (always balanced and LVC at 3.2-3.3v/cell). my first 5s zippy-h lasted 2 months in my e-maxx with my MMM 2200kv system (LVC 3.25v/cell, constantly ballanced) before cell 2 puffed up. my second zippy lasted 5 months before cell 4 started acting funny and voltage got too low (LVC at 3.25v/cell, always ballanced) and my first 5s TrueRC lasted 8 months in e-maxx (same setup) before my ballancer somehow turned off on me wile charging and cell 5 charged slightly to far. and my second truerc has yet to get a run on it