3rd test flight with the S1000. I did fly in manual mode at around 4:30. Wanted to do a duration test with 6S 10,000mAh battery. Winds were pretty gusty - took a wind reading at surface and it was 8-9mph gusting sharply to 15mph. The first voltage protection was set at 22V (LED only) and second was set at 21V (LED + descend). I started seeing the yellow warning only at high throttle settings starting at about 9 minutes and steady around 10 minutes. I then continued to hover for another 5 minutes hoping the 2nd voltage would trigger but it never did. I landed at 15:00 in case something was wrong as I didn't want to stress my battery. Battery was left with 21.9V with the cells averaging 3.65V. It ended up taking about 9400mAh. The S1000 is all stock with A2 flight controller, Futaba T14SG using the A2 RX. I carried a spool of wire for balance. Battery used was Ready Made RC.
I did a second flight with fresh battery and landed at first voltage protection right at 10:30 and the battery was left with 22.73 (3.79) and took 6669mAh.