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Invalid Battery on Phantom Vision..Advice needed.

Discuss the DJI Phantom Vision Camera and FPV System

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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby kingcat200 » Mon Nov 11, 2013 3:58 am

Khakis1999 wrote:Hi guys. After having 3 random emergency landings with my PV I emailed Dronefly and DJI. I received 2 different emails from them. I will post below. Any advice? Thanks.

From Dronefly

Hello John,
Sorry about your phantoms battery problems. This is a problem that DJI is aware about and is actively working to fix the problem. I will keep you updated with any and all most recent information I have regarding this issue.

Thanks,
Trent S.
Dronefly.com

From DJI

Dear,
Your this problem was very dangerous. You can't fly your coper. You must contact your dealer Dronefly to fix it. And let him help you to replace or fix this battery.
Thanks

Tiny.wang@DJI.com

I know I am beginning to sound monotonous but just as a reminder T Wang is the manufactures representative and the above is quoted from a very early post on this subject. At the same time he was giving this advice to some he was advising me to clean the small sensor contacts.
If you think I am becoming a pain on this forum, I am also being just as vocal to the manufacture on this subject, albeit with no response. May I politely suggest that any one who has had this problem contacts the manufacture directly to bring pressure to bear with numbers.
support@dji-innovations.com Or http://www.dji.com/tech-support/report-problem/
Regards to All
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby kingcat200 » Mon Nov 11, 2013 4:02 am

One of the many communications I have sent to DJI


Hi

I recently purchased a Phantom Vision 2.

On my first flight I had the model perceive the battery was an invalid battery whilst in flight at 500ft after 6 mins of flight and the phantom was lost during the subsequent forced landing.

I was very lucky to recover the phantom vision. This fault was replicated intermittently many times on the bench afterwards. the Battery always had sufficient charge often more than70 %.

Whatever the cause of this problem may I suggest for safety you write code that once this alarm is activated IF AIRBORNE allow battery power to remain connected so that a fully controlled landing can be made IF NOT AIRBOURNE as is the case now don't allow motors to power up thus non proprietary batteries could not be used.


This is a real let down with the product as every thing else is brilliant. I have returned the product for a refund .

This is now a well documented failure on the Internet and I would like to own a vision however will not purchase one until this dangerous bug is fixed.


It would be appreciate if you could let me know if you implement the above fix or reach another solution so that I can purchase another Vision and fly with confidence as I do with the standard Phantom.

It would also be nice to have IOC mode and prop guards for the Phantom Vision.

Keep up the good work and I look forward to owning a Vision once you fixed the invalid battery bug.

Kind regards
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby Studiowise » Mon Nov 11, 2013 4:24 am

kingcat200 wrote:One of the many communications I have sent to DJI


Hi

I recently purchased a Phantom Vision 2.

On my first flight I had the model perceive the battery was an invalid battery whilst in flight at 500ft after 6 mins of flight and the phantom was lost during the subsequent forced landing.

I was very lucky to recover the phantom vision. This fault was replicated intermittently many times on the bench afterwards. the Battery always had sufficient charge often more than70 %.

Whatever the cause of this problem may I suggest for safety you write code that once this alarm is activated IF AIRBORNE allow battery power to remain connected so that a fully controlled landing can be made IF NOT AIRBOURNE as is the case now don't allow motors to power up thus non proprietary batteries could not be used.


This is a real let down with the product as every thing else is brilliant. I have returned the product for a refund .

This is now a well documented failure on the Internet and I would like to own a vision however will not purchase one until this dangerous bug is fixed.


It would be appreciate if you could let me know if you implement the above fix or reach another solution so that I can purchase another Vision and fly with confidence as I do with the standard Phantom.

It would also be nice to have IOC mode and prop guards for the Phantom Vision.

Keep up the good work and I look forward to owning a Vision once you fixed the invalid battery bug.

Kind regards


well IMO you couldn't have been more civil or concise! Please post the response should you get one.
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby kingcat200 » Mon Nov 11, 2013 4:47 am

Studiowise wrote:
kingcat200 wrote:One of the many communications I have sent to DJI




well IMO you couldn't have been more civil or concise! Please post the response should you get one.


Thank you

I Sure will if ever I receive one
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby Crimbo » Mon Nov 11, 2013 5:01 am

Hi all

I have had a response from my suppliers and they have passed on a procedure that dji are recommending to do,
see below, has anyone else done this procedure and with what success. I'm guessing not as there is no forum history suggesting this has been tried

For this alarm, here is the solutions:
1. Find the two small circle points on the battery, then clean them.
2. Find the two small pin on the connector with in the Vision’s craft after the battery is removed, then clean the pins.
3. After clean them, please kindly connect the Vision to the assistant software and check if alarm disappeared;
4. If no alarm, please start the trial flight in low height.
5. In case alarm remains on the assistant software or the Vision still has abnormal performance during the flight, like battery volume drop to 0% or height of the Vision’s craft dropped without operation on Throttle. Then please contact the dealer to replace a brand new one for you.
Thanks.

Best regards,
Tony Wang
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby kingcat200 » Mon Nov 11, 2013 5:14 am

Yes I have tried this and it is NOT I SAY AGAIN NOT a solution
So to some people Mr Wang is saying do not Fly whilst to others he is saying clean the contacts
I fear that it is probably a continuity problem between the battery and main controller that a simple line of code could fix.
So how do you know the contacts ore sufficiently clean for a trouble free high altitude long distance flight.

BRING PRESSURE TO BEAR ON MR WANG DO NOT FLY YOUR VISION IF YOU HAVE THIS PROBLEM
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby TisiRaptor » Mon Nov 11, 2013 5:23 am

For those that have this problem - has it been there since day one, or have you had trouble-free flight (battery-wise) and then it started days into your PV ownership?

I ask because I don't have this issue, but I would hate for it to suddenly appear whilst the PV is 700 feet up in the air!
"Neil Armstrong, that spaceman, he went to the moon but he ain't been back. It can't have been that good." Karl Pilkinton
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby Shedracer » Mon Nov 11, 2013 6:15 am

TisiRaptor wrote:For those that have this problem - has it been there since day one, or have you had trouble-free flight (battery-wise) and then it started days into your PV ownership?

I ask because I don't have this issue, but I would hate for it to suddenly appear whilst the PV is 700 feet up in the air!



I initially had a few quick short flights in the back garden, in between the foul weather we have had, without the invalid battery warning, I thought I was one of the lucky ones. It was only when I went down to the field and had more extremely flying and taking it up higher, that I encountered the problem.

I was in touch with my dealer this morning, they also gave me the same advice as others have, direct from DJI, to clean the contacts and connect to assistant to check for error, then test fly. I'm not convinced this is a permanent solution, as it's always going to be in your mind, is it going to happen again! :shock:

To be honest, DJI should drop the idea of them only supplying the battery, get rid of the battery test, to see if it's a genuine DJI battery, as it's this system that seems to be causing the problem. The most important thing any P2V owner wants, is reliability and confidence in their craft.
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby TisiRaptor » Mon Nov 11, 2013 6:32 am

Sorry to hear you've got the problem Shedracer. I have been lucky so far. Weather hasn't been too bad and I've been able to get out several times. Each time I have had successful flights with no issues, other than the camera issue I have started a topic about.

The battery issue is a real concern though, I took my PV up to just over 700 feet on the third flight, before I knew anything about this battery problem, that could have been disastrous!

So now I'll have to think twice about flying high if this problem could strike at any time. I suppose that's one of the downsides of being an early adopter (read - guinea pig) of new technology - we have to uncover all the issues that should have been sorted before it was released and just hope that we don't break/lose an expensive bit of kit because of no fault of our own (and if we do, that DJI will do the decent thing and accept liability and therefore replace the craft)! Reminds me a bit of the way Microsoft releases software - to be tested by the masses!
"Neil Armstrong, that spaceman, he went to the moon but he ain't been back. It can't have been that good." Karl Pilkinton
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Re: Invalid Battery on Phantom Vision..Advice needed.

Postby kingcat200 » Mon Nov 11, 2013 7:29 am

[

To be honest, DJI should drop the idea of them only supplying the battery, get rid of the battery test, to see if it's a genuine DJI battery, as it's this system that seems to be causing the problem. The most important thing any P2V owner wants, is reliability and confidence in their craft.[/quote]

I completely agree however as i have mentioned previously a firmware fix could be implemented immediately ie do not test for this fault once AIRBOURNE
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