Need Help with Phantom 1 Battery Protection Levels Problem

[wsather]

I am new with this forum and this is my first post. I have had a Phantom one for almost 6 months and I have 3 batteries. Just recently it started having a problem. I would take off (All fine on the ground) and once the phantom got off the ground, I would get low voltage blinking (1 green, 3 red) and then it would auto land. I do have a gimbal set up with a GoPro. I was looking at Naza and it shows that the battery protection level 1 and level 2 have the same drops and loaded/unloaded levels. I have virtually no clue what these levels default to and what should change with a gimbal setup. I have tried all 3 batteries and it has the same problem so it wouldn't make sense to be a battery problem. I turned off this protection just to try it and it flies normally but I don't feel comfortable not having this protection. I have been bummed because I couldn't find anything to help. Thanks for whoever helps!


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[Pilot_FML]

You seem fairly certain that your flight batteries are all healthy because they all act the same way.

Have you ever actually measured your battery voltages (one cell at a time) BEFORE and AFTER flight?

LiPO's are strange beasts and just one unhealthy cell can cause a quicker than normal low battery warning to get triggered.

Buy a lipo tester like in the below link and check individual cell voltages before AND after flight. Don't do the after flight check immediately. Wait several minutes before taking readings. .
1S 8S Li Po Lithium Battery Voltage Tester Checker Indicator Buzzer Beeper Alarm | eBay

Look for 1 or 2 cells with noticeably different voltages ... that's a good indicator that the battery maybe starting to go bad.

Lastly:
Take a look at the posts in the below link......there are some very helpful comments here about changing battery level warning levels. ElGuano's posts are particularly helpful.

Naza low voltage settings. | DJI Phantom Forum

 

[jamesb72]

I'm pretty sure low battery is slow red flashing, critical is fast red flashing on p1.

1 green 3 red sounds like something else to me.

 

[Ti22]

I'm pretty sure low battery is slow red flashing, critical is fast red flashing on p1.

1 green 3 red sounds like something else to me.

Correct, Low voltage warning + auto land = flashing red (slower/faster).

Green + 3 red flashes sounds like GPS issue. Missing satellite signals.

Bookmark this page for future reference - Phantom-LED Indicator Description - DJI Wiki

 

[wsather]

My bad, I tested it yesterday just to see and it did not have a green light with the flashing red. I just bought a new battery and a voltage tester. I am going to try this battery to see if it is actually the batteries or the protection levels. Thanks for the feedback, I'll get back to you to see what happens.


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