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So I have a Moblite 7 that came with 2 650 mah batteries. I ordered 6 more 600 mah batteries from GNB. After very short time the 650 batteries made the drone turn off for a moment and turn on again. The voltage saged a lot more and I thought that the batteries are just crap. I storage charged them and didn't touch them again. But after some time the GNB batteries caused similar issues. I started to think that the connector became loose because the power would cut for a second if I slightly touched the connector or set the quad down. So I ordered new PH 2.0 connectors and soldered them to the batteries. The first flight was a success. The quad didn't drop out the sky anymore and I hadn't any restarts but the next day every single battery had the issues from the past again.
This just doesn't make sense to me. Is there anything that I missed? Are the connectors not the issue? Any help is highly appreciated.

My Mobula 6 has ph2.0 connectors and sometimes if I crash hard the lipo connection can be lost or sometimes the camera connection can be lost.

You may have a loose connector on the quad. Or it may be a loose power cables soldered to the FC.

Most people seem to recommend solid pin connectors as replacements.

Any connector will wear out over time.

can you share a dvr of the behavior?

i use the same motors on 75mmframe with 300mah batteries, if you like to get full performance out of it that matches well. the 600mah might match well for cruising only.


check if a motor is partialy blocked by some "hairs" or anything, compare the motor for any difference in temp after flight.