I have done a lipo comparison between the following batteries, I ran the tests on 2 of each battery and used eagletree data logger and a brushless rpm sensor too.
Hyperion G3 VX 4s 2200mah 35c versus Rhino 4s 2150mah 30c


The Hyperion cost £54.95 + delivery from fastlads and the Rhino's cost $35.35 + Delivery @ HobbyKing (Hong Kong). It cost me £115 for 2 of the hyperions delivered to my door and about £50 (give or take a pound) to have 2 of the Rhinos delivered to the UK from Hong Kong. The Hyperions have about 30 cycles and the Rhino's 10 cycles at the time of this comparision.
I'm no 3D'er so the flying style during these test comprised of general flying about doing circuits, some small loops, some massive loops (100ft), a bit of pitch pumping, backflips, rolls, and some badly executed attempts at some tick tocs. The test machine was my RAVE with the scorpion 2221-10 motor, full spec in my signature. The flights lasted 5 mins. My throttle curve is 85% idle up.
Here are the graphs and a spreadsheet, there isnt much in it. I cant tell the difference. But you can make your own conclusions. I'll be happy to do these tests again in another 40 cycles.

This is Hyperion #1 Data


This is Hyperion #2 Data


This is Rhino #1 Data


This is Rhino #2 Data


This is a group graph for the amp/volts for all 4 batteries in the order of Hyperion 1, Rhino 1, Hyperion 2 then Rhino 2
Hyperion G3 VX 4s 2200mah 35c versus Rhino 4s 2150mah 30c
The Hyperion cost £54.95 + delivery from fastlads and the Rhino's cost $35.35 + Delivery @ HobbyKing (Hong Kong). It cost me £115 for 2 of the hyperions delivered to my door and about £50 (give or take a pound) to have 2 of the Rhinos delivered to the UK from Hong Kong. The Hyperions have about 30 cycles and the Rhino's 10 cycles at the time of this comparision.
I'm no 3D'er so the flying style during these test comprised of general flying about doing circuits, some small loops, some massive loops (100ft), a bit of pitch pumping, backflips, rolls, and some badly executed attempts at some tick tocs. The test machine was my RAVE with the scorpion 2221-10 motor, full spec in my signature. The flights lasted 5 mins. My throttle curve is 85% idle up.
Here are the graphs and a spreadsheet, there isnt much in it. I cant tell the difference. But you can make your own conclusions. I'll be happy to do these tests again in another 40 cycles.
This is Hyperion #1 Data
This is Hyperion #2 Data
This is Rhino #1 Data
This is Rhino #2 Data
This is a group graph for the amp/volts for all 4 batteries in the order of Hyperion 1, Rhino 1, Hyperion 2 then Rhino 2