Yesterday I had a very weird experience where my flight ended about half way through the planned time (5 min) with what appeared to be a low voltage cut-off. I assumed I had just forgotten to charge the pack as I didn't check it, so I got out the second battery, that I had check before leaving the house, it was fully charged. I flew the next flight to full 5 mins as set in the timer (old Ztron). When I got home I checked the voltage on the first battery and it was 19.6V the second was 18. So it seemed that the first pack was well above low voltage cut-off. I don't know what could cause this type of cut-off if it wasn't low voltage? I had been flying the first pack for a while with no issues. Any ideas as to what to check?
Best, DennisT
I don't know but I've had this happen before. I think Howard had an event where the motor cut off and then later started again. I have had a couple similar incidences myself but never a restart. When I'm flying alone, I always have the down line in my hand when I'm moving from the airplane to the handle or handle to the airplane.
I use a small piece of 1/8" masking tape to indicate charges v flown. When I charge the battery, I put a hash mark on a label and then attach a small piece of tape below the label to indicate the battery has been charged. When I finish my flight and unload the battery, I remove the tape indicating the battery has been flown. If I short flight one battery, I separate it from the others because I parallel charge my flight packs.
As far as checking, I'd put a mark on that battery or record it in my log as having had an event. Check the individual cell voltages is about as much as you can do beyond that. Then just keep an eye on it. It's likely your timer or ESC had a glitch maybe from static discharge. Without a monitoring system onboard there is no real knowing.