Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

Worried about my P2V+

Discussion in 'Phantom 2 Vision + Discussion' started by cditty, Oct 28, 2014.

  1. cditty

    Joined:
    Oct 13, 2014
    Messages:
    21
    Likes Received:
    0
    I decided to check out the functionality of my crashed drone last night while trying to drain my suspect battery. A few things I noticed, I wanted to ask here so someone with more experience can tell me if it was normal.

    I had the body open and everything hooked up (no blades). I had my broken gimbal connected also. When I went into the DJI software, It showed 0% battery even with the actual battery showing 3 lights. I swapped batteries and it showed the same 0% with 2 lights showing on the battery. I decided to just mess with the RC and simulate flying to wear the battery down quicker. I pushed the left stick up to "ascend" and then let go. The motors kept spinning like I was holding the stick up. I hit the left stick down and it returned to a slower speed. I moved the right stick to simulate movement and the motors sped up. When I released the stick, the motors didn't slow down until I moved the right stick again in the opposite direction. I did all this indoors so there was no gps or compass calibration done. Also, I am still in phantom mode for the RC.

    Any suggestions? Is this normal because I was indoors? My body doesn't get here until Thurs, but if this isn't normal, I don't want to take a chance and lose my drone due to damage.
     
  2. N017RW

    Joined:
    May 2, 2014
    Messages:
    6,257
    Likes Received:
    1,618
    Location:
    Palm Beach Co.- FL
    Can't address the battery reporting issues. Possibly bad/poor contact with the data pins???

    The issue with the motors continuing to rev after your control input was removed is typical.
    The FC is looking to see the increase in altitude or that the a/c has tilted or moved in the direction you 'requested'.

    By reversing the command(s) you have negated the previous command(s) resulting in the system reacting appropriately.
     
  3. cditty

    Joined:
    Oct 13, 2014
    Messages:
    21
    Likes Received:
    0
    Ok. Good. I was afraid that the crash royally got me. Glad to know that it is ok.

    Thanks for the info.
     
  4. N017RW

    Joined:
    May 2, 2014
    Messages:
    6,257
    Likes Received:
    1,618
    Location:
    Palm Beach Co.- FL
    Always be wary after making repairs.

    Re-cal the IMU if not done so already too.
     
  5. Dirty Bird

    Joined:
    Apr 15, 2014
    Messages:
    0
    Likes Received:
    9
    Location:
    Glen Burnie, MD - USA
    For your battery issue, check that the two little spring-loaded battery sense pins are still in the battery compartment (right next to where the main battery contacts are located). They could be bent, broken off, or they could be stuck pushed into against their springs. If the pins are in place and functioning, you will have to trace the connection back from there into the Phantom.
     
  6. 4wd

    4wd

    Joined:
    Mar 31, 2014
    Messages:
    2,532
    Likes Received:
    421
    Location:
    North York Moors
    It does behave strangely when you give the command to ascend but it can't do it.
    I've seen similar odd behaviour trying to run the battery down indoors.
    If you leave the props on it's a real hazard as it can start to gradually accelerate with no input.
     
  7. Meta4

    Meta4 Moderator
    Staff Member

    Joined:
    Jan 8, 2014
    Messages:
    7,765
    Likes Received:
    3,471
    Re the battery info display.
    Are you getting any other telemetry? ie sats, height, speed?
    It is common for the grey cables to the gimbal to become dislodged and they need to be reconnected to get that information back.
     
  8. jwegener

    Joined:
    Sep 21, 2014
    Messages:
    79
    Likes Received:
    3
    Yep. What meta4 said. Had the same problem. Simple fix (check the wire!)
     
  9. cditty

    Joined:
    Oct 13, 2014
    Messages:
    21
    Likes Received:
    0
    Don't know about the other info. I drained the batteries and are letting them charge back up. I'll check it out tomorrow and see what it all says.
     
  10. jwegener

    Joined:
    Sep 21, 2014
    Messages:
    79
    Likes Received:
    3
    How do you drain the batteries?
     
  11. cditty

    Joined:
    Oct 13, 2014
    Messages:
    21
    Likes Received:
    0
    I just leave it in the drone and the drone on all night.