Just finished the first flight test w/the ThunderPower 5400mAh 3S. Data is very rough since it was an initial flight, and I managed to forget to put my batt checker in my pocket before walking outside, so I don't have an exact landing voltage.
Phantom 1.5
AUW 1096g
55F, no wind
1st level final: 10.7
2nd level final 10.6
Total flight time: 27.15
1st level warning@ 26.15
Landing voltage: N/A
Voltage 45 seconds after landing: 10.65v (3.56/3.53/3.56)
Voltage 10 min later: 10.7v (3.57/3.56/3.57)
Battery was a bit warm after flight, but not quite as warm as as my maddog 2700 usually got.
Note: I did fight the autoland at 2nd level for about 10-15 sec before I let it land and shut it off.
I also don't have an OSD or any telemetry installed other than the voltage reading at the Rx (which is 5.5v fed from the NAZA), so I can't map the discharge curve yet. I plan to throw on a lightweight voltage meter for my FrSky setup for subsequent test flights. This one was sort of an "airworthiness & rough batt life estimate" test, I'll nail down some more specific numbers asap.
The flight was delayed a bit, because I was putting the battery in at first, one of the pins in the JSX-HT balance tap broke off, and I had to end up shortening and re-crimping them all. Twice, because the same lead did it a 2nd time :roll: I also learned that when crimping 18ga wire in the larger hole in the crimper (the largest gauge for that hole), I need to not squeeze quite as tight, so I now stop one ratchet before the last one. Doing so keeps the 18ga wire from getting over-crimped and breaking off easily. Protip.