How much Voltage Sag is normal?
I'm going round and round with various batteries trying to find one that doesn't sag so bad.
What I'm talking about is; in flight, it seems most batteries will get down to 10v or so, but once I land it's right back up to 11.7v+. It makes it really hard to guess if you still have time left or not by landing and checking the voltage. I have an amp reader on the OSD, and it says I'm pulling around 17-19 amps most the time. Batteries are 30c, 35c, and 60c. Don't see any difference between them really.
The 35c had it's first flight today and I puffed it because I landed, checked the voltage (11v+), launched and about a minute later it sank to the ground. I checked my osd and it was below 10v already. Sux. (It was to windy for FPV).
I should probably stick with one brand.... Tried 6 different ones so far. None of them are giving me 100 flights before being useless.