Lipo issue: Polyquest 30c 2s pack

[Jeremy1976]

Pack: Polyquest 2s 30c 5000mah maybe 20 cycles on it.
Charger: Hyperion net

Problem: The performance on it sucks in comparison to my SPC 15c pack. Now I would think this pack would be at least the same, hopefully more than the SPC being it is double the "c" rating. However it is not.

Findings: Cells are very close after a discharge, always within hundreths of a volt. This is the weird part. When charging it will charge at 5 amps, then around 95% of the charge it will drop way off and take quite some time to finish. When the charger beeps that it is done the percentage will read usually 97%. It then will rise to 100% within a couple minutes of the charge ending. Pack is always nice and cool. I am stumped. This is the same pack that my buddy cannot run on his VXL setup. It will basically run at about 25% power on his setup. Almost like when it starts to dye off right before LVC. On my Rustler the performance is comparable to a stick pack......

Any ideas? Frustrating to say the least... This has been going on since I got it rewired. I charged it today at 2c which manufacture specifies can be done. I usually charge it at 1c but thought this may help out.