Hello everybody,
I have made six flights with my eParrot today.
Four flights were 5 minutes each pattern flights, two were 4 minutes each and I used them to practice the wingover, square eight and hourglass.
These maneuvers, and especially square eight and hourglass, are consistently inconsistent and I have to improve them.
I have used four 4S 3000 mAh Zippy batteries for the pattern flights and two 4S 2200 mAh E-Flite batteries for the practice flights.
The no load cells voltages, measured about 1/2 hour after the flight #6 ended, were as follows:
4S, 3000 mAh batteries: range of 3.74 - 3.79 V for all cells where 3.74 V was the lowest and 3.79 V the highest no load cell voltage read by the LiPo voltage meter.
I wrote down the no load cells voltages for each battery and these numbers are available if anybody wishes to see them.
4S, 2200 mAh batteries: 3.75 - 3.77 V per cell with the same comment as above.
Charging: Fast Charge with balancing on my charger at 1C
4S, 3000 mAh batteries: range of 45-47.5 minutes for all batteries to reach 16.8 V displayed on the charger. Individual cells voltages: 4.19-4.20 V displayed on the charger. When the batteries were disconnected from the charger and LiPo Voltage meter was used, it showed the total voltage of 16.6 V for each battery and between 4.15-4.18 V range per all cells. Charging added between 2130 and 2217 mAh to the batteries what is acceptable from the 80% maximum discharge rule.
4S, 2200 mAh batteries Fast Charging process took 51 and 53 minutes to fully charge the batteries to the same voltage ranges like 4S 3000 mAh batteries. Charging added between 1750 and 1780 mAh to the batteries what is acceptable.
Conclusion: I will fly again on Thursday morning and will charge again on Thursday afternoon to compare the effects of both charging methods.
Thank you,
M
"Learning never stops - period"