I wrecked her

[Former Member]

Yep....

Any idea what happens when a Mavic battery circuit board gets wet?

 

[WithTheBirds]

No. To be clear- I am saying that fresh clean water immersion is unlikely to leave a residue that will be an issue when the components are dried out. Powering on while wet is a different consideration. What happens to the mavic battery?

 

[fstop.labs]

The IMU is especially vulnerable - if water gets in there, it will corrode!

 

[Former Member]

What happens to the mavic battery?

The LEDs usually short out if any water gets into the batteries internal board. The rest of the bird might be fine, but the battery is usually toast.

 

[WithTheBirds]

The LEDs usually short out if any water gets into the batteries internal board. The rest of the bird might be fine, but the battery is usually toast.

Interesting- good to know. Thats a mystery.

Even with reasonably high dissolved solids in the water the conductivity would still be well into the 100's of ohms, wouldn't think you would get a lot of fault current flowing. It might be a logic issue?

 

[Former Member]

Interesting- good to know. Thats a mystery.

Even with reasonably high dissolved solids in the water the conductivity would still be well into the 100's of ohms, wouldn't think you would get a lot of fault current flowing. It might be a logic issue?

The LEDs are low current. Even if the batterys cells are not damaged by the water, if the LEDS short out the circuit board, the battery is done and wont charge. All you would get are 2 blinking lights.

It could be a logic issue. The problem with the battery is that once you open it up to troubleshoot, it will never fit back into the Mavic.

 

[mcsenerd]

I keep every package of desiccant I come across for these scenarios. I empty the desiccant packs into a vacuum bag, insert the electronic, vacuum out the air, and stick it on top of the back of my refrigerator near the coils (it's always warm there), and then I forget about it for a minimum of 3-5 days. I've resuscitated several phones via this manner, but they've all been fresh water accidents.

 

[Former Member]

I keep every package of desiccant I come across for these scenarios. I empty the desiccant packs into a vacuum bag, insert the electronic, vacuum out the air, and stick it on top of the back of my refrigerator near the coils (it's always warm there), and then I forget about it for a minimum of 3-5 days. I've resuscitated several phones via this manner, but they've all been fresh water accidents.

Your houses humidity level is probably zero. joking.

 

[WithTheBirds]

I keep every package of desiccant I come across for these scenarios. I empty the desiccant packs into a vacuum bag, insert the electronic, vacuum out the air, and stick it on top of the back of my refrigerator near the coils (it's always warm there), and then I forget about it for a minimum of 3-5 days. I've resuscitated several phones via this manner, but they've all been fresh water accidents.

Yes, those bags of "do not eat" come in very handy....

 

[CanadaDrone]

Yep....

I'm confused because you said you agreed with the article "absolutely", but the article said the issues (namely corrosion) were immediate if it hits a susceptible part.

Link to the article doesn't work.

You're right it appears to be broken - I am not sure what is wrong.

Google "ifixit rice article" and it is literally the first hit. Those guys have more experience repairing and tearing down electronics than anyone else I can think of.

 

[Former Member]

I'm confused because you said you agreed with the article "absolutely", but the article said the issues (namely corrosion) were immediate if it hits a susceptible part.




You're right it appears to be broken - I am not sure what is wrong.

Google "ifixit rice article" and it is literally the first hit. Those guys have more experience repairing and tearing down electronics than anyone else I can think of.

Are you sure about that? joking

 

[1buddyc]

@Thunderdrones can help repair it

Agreed, if anyone can.

 

[WithTheBirds]

I'm confused because you said you agreed with the article "absolutely", but the article said the issues (namely corrosion) were immediate if it hits a susceptible part.




You're right it appears to be broken - I am not sure what is wrong.

Google "ifixit rice article" and it is literally the first hit. Those guys have more experience repairing and tearing down electronics than anyone else I can think of.

The temptation is really to leave you confused rather than be drawn in by you following me around with this trivia- hands up, you got me on a word. The ifixit article I will confess I had read on an earlier occasion- I only skimmed it from your link. It is predominantly focussed on dispelling the mythical merits of rice as a desiccant. I have already qualified my earlier comments however in case you missed it I have enough electronic devices I have rescued following fresh water immersion still working reliably to demonstrate that destructive corrosion does not necessarily follow exposure to fresh water. The IPA rinse isn’t always necessary. Particularly where loaded PCB’s are coated in production- like most of the DJI stuff seems to be. You can even see the brush marks on the phantom boards. I can tell you from actual experience dissolved solids that might remain on a PCB aren’t usually a problem. I have a 13” MacBook I have used for several years to manage my SD cards and drives in the field. When it was donated to me it had the large proportion of a pint of Guinness that had entered through the keyboard. It had partially dried to a semi solid horrible mess. It took a lot of soaking and scrubbing but the only solvent I employed was water. I lost the optical drive and the keyboard is a little funky but it does the job. Obviously there might be some electronics where even the slightest conductive path that might be created by a residue could effect performance. Most are fine. I have put finished analog amplifier PCB’s through a cycle in an old dishwasher to remove solder flux, didn’t use detergent but didn’t treat the water either. No issues there. What we might think we know from google searches is often complemented by actual experience.

 

[Former Member]

I have a 13” MacBook I have used for several years to manage my SD cards and drives in the field. When it was donated to me it had the large proportion of a pint of Guinness that had entered through the keyboard. It had partially dried to a semi solid horrible mess.

It's good that it was Guinness instead of Fosters. I think Fosters is more conductive.

I have put finished analog amplifier PCB’s through a cycle in an old dishwasher to remove solder flux

How old was the dishwasher. I hope it didnt have a scrub board.

Sorry. This thread was getting rather intense. N'est-ce pa?

 

[WithTheBirds]

It's good that it was Guinness instead of Fosters. I think Fosters is more conductive.



How old was the dishwasher. I hope it didnt have a scrub board.

Sorry. This thread was getting rather intense. N'est-ce pa?

No washboard- no wringer either. I’m not sure the boards would survive a pass the spring loaded rollers. Compressed air is good for drying boards, as you probably know.

No need to be sorry- I’m not dirty on CanadaDrone either. It does get a little frustrating when on occasion people seem close to incapable of listening to anything that doesn’t align with what they think they know. We all do it to some extent. I wouldn’t have thought clean water would permanently kill a mavic battery, you have told me from your direct experience it does. You also told me the battery can’t be reassembled properly. I’m taking your word on both given it’s based on real experience. That’s two things I have learnt from you that I’m grateful for. Might save me some trouble, let’s hope I don’t need that information. Mind you I’m mostly flying over salt water and have no doubts as to what the outcome of ending up in it would be to any of my drones.

Btw- despite its popularity outside my country local consensus is fosters isn’t even much good for drinking.

 

[Matchlock]

Exactly how do you figure on getting two drones back if you only lose or destroy one?

Bud

That sound like a true definition of an accident. Well, let us hope you have DJI refresh and get a brand new drone. These things are so expensive to replace, so I really hope you have insurance to help you get back to where you were before crash.

I have DJI refresh and have state farm. I feel like if I get a total loss like you, I better end up with 2 brand new drones, lol.

 

[Matchlock]

I was told that since the battery is usually "On" when a drone gets submerged, there's the danger of a short circuit with the electronics of the bird. I was told this by an electronics specialist who repairs mobile telecommunications equipment.

Bud

The rice unfortunately does nothing because the deposits and conductive minerals left behind by the water are the issue - not the water itself. It's a commonly repeated myth that this does anything to help electronics that get wet. The best way to deal with it is to immediately remove any power source and displace the water with 99.9% Isopropyl Alcohol.

 

[PetitFrereArmada]

Exactly how do you figure on getting two drones back if you only lose or destroy one?

Bud

Very simple. If I truly wreck my drone or drown my drone and it cannot be fixed, I contact DJI and since they cannot fix it, they give me a brand new drone. I also contact State Farm and get a new drone.

Besides, you may wonder if each of them may ask to see the drone.

Well, what if I crash my drone out in the ocean 4 miles away from me and cannot retrieve it? DJI can see where I crashed with my flight data. So, they give me a brand new drone since i cannot get the wrecked one to ship to them.

Also, State Farm cuts me a check when I cannot get the drone back.

Bam! I end up with 2 brand new drones.

Now, don't steal my idea and use it. I bet it qill work. But I do not plan to crash my drone because trust me, I love to keep my things good rather than risk them to crash or get lost.

But I have over insured my M2P. Right now where my M2P stands with all that I have bought for it, it cost me over $2,000. That is more than a used car or some bikes even. So, I would hate to just lose this thing. Plus, I had crashed my MP 1 before and it was no fun when I had to pay out of pocket $165 for DJI to fix it. But good thing they sent me a new one instead of fixing it which meant I could have had my drone back with scratches on it. But they just sent me a brand new one. That is when I learned that I must insure this thing double, especially as this time I spent $2,000 for mine.

Trust me, if I total my drone, I will get 2 brand new drones. I will make it happen. But I have no plans of totalling my drone.

 

[WithTheBirds]

Very simple. If I truly wreck my drone or drown my drone and it cannot be fixed, I contact DJI and since they cannot fix it, they give me a brand new drone. I also contact State Farm and get a new drone.

Besides, you may wonder if each of them may ask to see the drone.

Well, what if I crash my drone out in the ocean 4 miles away from me and cannot retrieve it? DJI can see where I crashed with my flight data. So, they give me a brand new drone since i cannot get the wrecked one to ship to them.

Also, State Farm cuts me a check when I cannot get the drone back.

Bam! I end up with 2 brand new drones.

Now, don't steal my idea and use it. I bet it qill work. But I do not plan to crash my drone because trust me, I love to keep my things good rather than risk them to crash or get lost.

But I have over insured my M2P. Right now where my M2P stands with all that I have bought for it, it cost me over $2,000. That is more than a used car or some bikes even. So, I would hate to just lose this thing. Plus, I had crashed my MP 1 before and it was no fun when I had to pay out of pocket $165 for DJI to fix it. But good thing they sent me a new one instead of fixing it which meant I could have had my drone back with scratches on it. But they just sent me a brand new one. That is when I learned that I must insure this thing double, especially as this time I spent $2,000 for mine.

Trust me, if I total my drone, I will get 2 brand new drones. I will make it happen. But I have no plans of totalling my drone.

You probably won’t get two new drones. Read the DJI terms. You must supply them with the dead one to make a claim under the refresh policy. The exception might be if they are prepared to honour a warranty claim based on your flight log. That is possible if hardware failure is evidenced.

 

[PetitFrereArmada]

Exactly how do you figure on getting two drones back if you only lose or destroy one?

Bud

This is my thread...

My Drone: Pictures, accessories, adventures and maybe videos...

M2P = $1,500
1 Battery = $119
1 Battery = $139
DJI Refresh = $139
State Farm = $60
Polar Pro Filters = $100
2 Carrying cases = $60
Led lights and 2 sets of propellers = $25

TOTAL cost of my drone so far $2,142. Lol, if I knew this is what this drone would cost, I may have kept and stayed with my original Mavic Pro.

So you see my drone is already above $2,000.

I am sure others have their own cost at above $2,500 or even $3,000.

So, I am not looking forward to crashing this and losing money. But if I crash this thing beyond repairs, you best be assured I am coming out with 2 brand new drones.