So some brief updates on this build. It still lives and flies regularly. It has been relegated back to being a line of sight acro mini after building a
CopterGeist CGX250 for FPV (didn't do a build log on it).
The MRSS 1300mAh 35C 3S batteries have been great. Still running strong after at least a couple dozen cycles on each of the three batteries. Only complaint is that I wish the wire leads were longer, but it makes sense that they're short to save weight and that they fly on mini multirotors.
I've been working slowly into testing 4S performance on mini quads, particularly with the 1806 size motor options. Since this quad already had EMAX MT1806 2280KV motors on it from the last rebuild, it became the guinea pig for flight testing. Using a 1600mAh 35C 4S battery, which is a pig, and very mild HQ 5030 props has been very promising to date. I've got about a half dozen flights on this quad now doing moderate swooping about, flips, rolls, spins, quick high speed bursts, and just generally having fun.
Here is a video from the first 4S flight. Jump to about 4 minutes for more interesting footage than just hovering.
I've tuned the gains to smooth out the warbling since this first attempt. I am amazed that for its weight, 505 grams, it still flew for nearly 13 minutes.
I am still debating putting a set of
DYS BE1806 2300KV motors on my CGX250 frame for high speed FPV 4S testing, or I just might hold on until I get a V-tail mini for that. But that isn't the scope of this thread.
I have been very happy with the quad as it has had performed very well in everything I have asked it to do. It can be light and agile, weighted down and a speed demon, and all the while has been extremely durable in crashes.