This may be a common issue amongst this forum but I would see my case as quite unique as I have a lot of extra draw coming from other electronics on board that could be causing this issue.
Firstly the build that I’m currently running is a EFT x6100 which has built in esc’s into the motors so I am unsure of the spec of either, other than the specs given on the website.
The batteries that I’m currently running are 2 8ah 120c running in parallel totaling 16,000mAh.
My electronic system consists of a pm02 power module, pixhawk 2.4.8, a payload release servo, a 6s to 5dc voltage regulator for the Intel OBC, which has a sim dongle as well as a camera connected. Upon takeoff typically the power will cut temporarily losing connection until re-established 6-10 seconds later.
But that’s not really what I’m concerned about, seeing as I could fix that with a couple capacitors. What I’m concerned about is the voltage dropping from full (25.2v) to around 23v during flight. I’m mainly wondering if this is a normal amount of voltage sag or if this is abnormal. I tested this recently with one of these batteries and noticed this and to my research that I found online led to a bad or worn battery. So I bought two more, ran it again and this bin file was the result. Only a quick hover test because I’m not sure if this is critical or not.
If this is a safe amount then what could I theoretically run the battery down to without damaging it? Knowing that the voltage will rise back up again after landing.
packs shouldn’t drop nearly as much on a craft of this size.