The FÜ-RC Insaneya is something special. The cells are build to a 4S2P configuration, so there are 8 cells that build this 4S pack. Two 800mAh cells together are forming one bigger 1600mAh cell, and 4 of this cells are pushing the voltage to 4S.
Fü-RC is claiming that this packs are using 95C cells from Tattu, but of course we are talking about 95C 800mAh cells. And no, this cells do not have real 95C, this is just marketing.
A quote from the Fü-RC website: "However battery tech has stayed relatively unchanged ..until now ! Standard 1p 4s packs at any c rating all suffer the same problems, voltage sag and short lifecycles this is a result of the same problem. Small cells being pushed beyond the current limit of the cells give a noticeable voltage sag when the drone is pushed hard for more than a minute or so and pushing the battery to a point where voltage sag is noticed also damages the internal chemistery of the cells leading to very short lifecycles. FU-RC have changed all this with the Insaneya .. "
This are huge claims from the marketing departmend, and the C-Rating of ∞ is also clearly just marketing. In case you did´nt notice, this 800mAh cells are also pushed to their limits... I did upload a comparison picture of the Insaneya and the R-Line 1550mAh, so you can see this tiny cells for your own here. So instead of marketing, let the results speak.
The Insaneya is a really good battery, that is comming in just with nearly the same rating like the R-Line Tattu. Because of the 4S2P configuration, the Insaneya has a other characteristic like the R-Line. The first half of the dynamic race test, the Insaneya is performing slightly behind the R-Line, but then it is performing slightly better. Yes, this battery will have less sag than the R-Line and other compareable batteries, but not right from the beginning. If the dynamic race test would last another round, the Insaneya would benefit even more, and then be absolutly equal to the R-Line with the score, or even slightly better. It´s the end of the mAh where this battery will shine slightly more.
The claim of a longer lifetime is something I will test after some usage. Instead of burning the amps out of bigger cells, the amps are then sucked out of 2 really small cells. I doubt that the pack will last really longer than the R-Line, but this is something I will check. The IR curve shows us the high quality of the cells, they are nearly identical to the R-Line. The weight is still good, and the temperature while the amp tests is also good.
Lets come to a conclusion:
The Insaneya is a really good battery, sharing the top of the (not HV) 1550-1600mAh ranking together with the Tattu R-Line, with a great characteristic and nice punch even in the end. It will benefit even more at the end of the claimed mAh. FÜ-RC did indeed build a great battery, but someone has to get that marketing guy down from the hypetrain (especially on Facebook). ;-) The claims on the website are so overhyped, but I think this is something we do expect these days from the battery brands. At least they have some humor with the C rating.
I want to thank FÜ-RC for building this battery and trying something new. Any development here has to be valued, and if I would be allowed one wish: build a V2 with bigger cells. ;-)