DJI Action 2 Magnetic Case Tested (with unexpected results)

#DJI #Action2
The shipping time for my free magnetic case from DJI is more than a month, so I bought one from Amazon to do these tests. I tested the run times without the case, with the case, and with the magnet trick (or magnet hack) and compared the recording times and temperatures. Along this 2 day journey I learned how this case actually works, discovered some problems and got some unexpected results.
Action 2: amzn.to/3kwzUVz
DJI Magnetic Case: amzn.to/3Jqzael
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THE GEAR I USE TO MAKE THESE VIDEOS:
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Main camera:
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Wide angle lens:
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22mm lens:
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Secondary camera:
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Gimbal (FeiyuTech):
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DJI Pocket 2:
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Osmo Pocket 1:
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Osmo Pocket Wide Angle Lens:
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Drone (Mavic Mini):
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Motorized Camera Dolly:
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Smallrig Magic Arm:
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Video LED Light:
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- - - - AUDIO - - - -
Vocal mic:
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Voiceover mic:
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Lavalier mic:
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Audio Interface:
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Audio Field Recorder:
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Keyboard:
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DAW:
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Instrument Plugins:
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Business enquiries: roosreviewsmail at gmail dot com

[@jameshaak805]

Great demonstration! Thanks for sharing the best setup that would give longer recording time for my Action2!

[@harrishuntTV]

I appreciate the effort you put into making this content! And it's great to see the camera gets better and better!

[@Roos-Reviews]

Yes, it has improved quite dramatically since it first came out.

[@MOTOUK1]

Appreciate your tests thanks 🙏 i use my camera on motorcycle helmet so i don’t have a heat issue, saying that i have just ordered a second one. I wish dji had made it the way you said but also I’m sure they could trim a little to allow ND filters to be used. One thing i have noticed on my camera is the white balance does shift slightly sometimes giving a cooler temp then back again briefly. I’m sure the up coming firmware fixes it. Cheers Nick

[@Roos-Reviews]

Thanks for pointing out the WB issue. I hadn't noticed that before.

[@TheSshadow7]

More content. You really do make some of the best videos in this realm of tech.

[@Roos-Reviews]

Thanks for saying that.

[@dennysmith2291]

Thanks for all the hard work you put into that video 👌👌💯✌️

[@Roos-Reviews]

Thanks for saying that!

[@somphonganu]

Great. Thanks for review.

[@thehoxtontrend]

amazing efforts on this video, thanks

[@Roos-Reviews]

Thanks a lot

[@SweetGear]

Great video! Awesome testing! Thanks

[@Roos-Reviews]

Thanks!

[@HKSAR55]

Thanks for the great video....Great narration too. I have just bought the action 2 dual screen combo and a smallrig case....I going to try the magnet trick though. since I have dji care refresh (in case of accidents) I might just stick the magnet to the top and see how it goes without the protective case.

[@AlexanderBischof]

Great test

[@WeWillNomad]

Thanks!

[@filmdraaibank]

It's nice that you've mentioned that there was no air flow. In a lot of the test reviews they did forget about that (actually the vast majority never even thought about it, although it's the way they where designed to "normal" use).

[@Roos-Reviews]

Yes if you use it on a bike or when running or something with air flowing over it the overheating is greatly reduced.

[@AJ-em2rb]

so it's less an overheating in the sense of preventing damage to the internals, and moreso a safety feature to prevent burns or complaints when handling the camera. that makes sense in an unexcpected way

[@JM_Tech]

I agree!!

[@izzatramzi4334]

Amazing reviews

[@dimitrarose694]

can you please repeat the test but set the temperature stop recording to standard so we in Europe find out the times ?Thanks in advance!

[@TheOpticalFreak]

Thank you for putting in the work! 👍😃 Luckily there are now a lot more axasories to get for the camera

[@eprohoda]

hiya!~yeah, what a breathtaking footage,)

[@noelrogeliosupetran486]

Tnx man.

[@futureman3693]

Brilliant summary .. and much appreciated. Mr Merv Australia

[@Roos-Reviews]

Thank you

[@freedayslover]

exelent video broo... thnak you for your tests :)

[@Roos-Reviews]

No problem!

[@sixlitrehair]

great video!

[@Roos-Reviews]

Cheers!

[@Ozpeter]

Congratulations on being the only reviewer who actually gets to the heart of the matter - and who makes one or two others look a bit silly in the process. One posted a 25 minute review "explaining the science being the cage", even claiming that the slightly rough exterior of it was due to that adding to the the heat dissipation that the cage provides to lengthen recording times... Anyway, let me not be catty about it. (Too late, I was). Big questions remain. Why was that magnetic switch there in the first place? Did DJI originally intend to sell or include the case from the outset, but manufacturing and distribution constraints meant that it's only now available? Did they deliberately wait to see what the market would tolerate in the way of overheating? Did that switch have some other original purpose? We will never know... Of course it's now open to 3rd party manufacturers to sell cages which incorporate the magic magnet, but which would be made of metal to help actually dissipate the extra heat, thus improving on the DJI freebie. I use a Ulanzi cage, and I must get around to seeing whether it does actually make a difference to running times anyway, without relying on the magnet. Or I could try to find a magnet which would work with the case fitted, and see how my times compare with yours. All interesting stuff but time consuming. So far the time consumed has largely been yours - thanks for that! [Edit - someone has commented in another video and explained why that sensor is in the camera in the first place. "The detector is for the macro lens. Turn on macro lens detection, and when you put on the case, it will switch to macro recording instead of detecting the case. Correction: the magnetic case should have reverse polarity compared to the macro lens, as now I can turn on either notification based on which side of the magnet I push to the camera." Now this discovery would enable someone with a heat measuring device - Roo perhaps?! - to fit the case with the macro feature turned on, thus avoiding the camera being set to run hotter, and see whether the case on its own does reduce the running temperature or actually increase it.]

[@Roos-Reviews]

Peter, such a great comment! I was looking forward to hearing your thoughts about these test results. You know, when I first heard about the magnetic switch I immediately wondered the same thing; why was it there to begin with? Do they have some special, super cool accessory planned for release that the switch will activate and was it just pure luck that they were able to utilise it for this emergency fix instead? And now you have put forth the theory that it's there to detect the macro lens and I'm thinking "ahhh, that makes sense", until, I looked at images of the macro lens and saw that it sticks to the front. And that no part of it touches the top area where the little magnetic switch is located, just beside the power button. So how does the macro lens trigger that switch? Wouldn't the switch need to be behind the front face rather than behind the top surface? I think the origin story of that switch may be the final piece of this puzzle. I think the camera module case does help cool it when the camera module is on its own, because in my tests I got an extra minute of run time with the case than with the magnet alone. But unfortunately when the two modules are connected the bottom of the case reduces heat transfer to the lower module and the heat sink effect of that module is reduced quite dramatically. I watched the video you speak of. I think he presented it well and made some great points, but I didn't agree with all of them. For example, the textured surface creating more surface area which improves cooling. He's absolutely right that the rougher a surface is the larger the surface area it has, but in my opinion at the scale we are talking about with this, the effect would be impossible to detect without precise scientific temperature measuring tools. The ever so slightly textured finish on this case will not extend the run times in any meaningful way. It's too slight a texture. If it had big grooves cut into it then maybe we would have something. I also don't think the heat sink effect is as significant as some people think it is. An extra minute is wonderful but the temp limit increase of the firmware is doing the real trick, in my opinion. Of course I'm not an expert in this stuff, but I did do the tests so I could put some data out there with my theories. It has been an enjoyable journey. I was quite disappointed with this camera at first, but I have come to love it now that the heat issue is essentially solved, at least for how I use it. It's been my daily carry for the past week.

[@Roos-Reviews]

I forgot to add that I think to reverse the polarity of the magnet in the case would mean cutting it out and glueing it back in upside down. When I try the magnet trick with the magnet flipped nothing happens. I don't get any macro confirmation on the display.

[@Ozpeter]

@@Roos-Reviews Did you have the menu option to enable the macro lens detection ticked? Just checking...

[@Roos-Reviews]

Good catch. I turned that on and now that same switch activates macro mode when the magnet's polarity is reversed. It also triggers when placing the magnet on the front face near the top.

[@astifcaulkinyeras]

Excellent work! Have you had any overheating issues using it at 1080/30?

[@LostTravellers]

Is it maybe possible that when the module is attached, due to the fact that it charges the battery in the camera at the same time, it makes it more difficult to reduce the heat from the camera (cause charging creates extra heat)? I don't think the case really helps, but just adds a higher overheat limit softwarewise, since the camera needs to recognize 'the case' before it 'works'. You said it yourself that without the case, the camera overheats at 10 degrees lower.

[@korpulian]

I think, this extra space is for ND filters. I saw a video, where they fit the camera in the cage with the Freewell filter attached.

[@sebastiantopel746]

well .... first off, thank you for those throurogh tests! however, they show that the camera can run hotter without a problem. We know that the shutoff temps are determined by compliance, not technical limitations (in EU they had to take away the option for the higher limit because of regulations). This case allows them to work around that by basically removing the chance for skin to touch those hot spots, therefore they dont apply = longer recording times for the user + additional revenue for selling the case. so yes, its a bit weird, but i d still consider it a win-win.

[@Roos-Reviews]

Yes, it's a pity our friends in the EU will get nowhere near these run times with the new case. It seems they will only get an extra minute or two, while elsewhere we are getting double the run times. I think that while the aluminium now gets a lot hotter, the internal components should still be staying within safe operating limits.

[@Ozpeter]

@@Roos-Reviews Emphasis on "should...". Personally I won't use the case unless I have to (I don't have any overheating issues so far with my use of the camera). Will running the camera hotter improve its lifespan or reduce it? Intuition says it could reduce it. DJI might be gambling on reduction in life not being encountered for a year or two, and then it would be quite hard to demonstrate that people using the case were definitely getting shorter life than those not using the case, because it there would be all sorts of other variables in play. We shall see...

[@andreaskaphengst8121]

Will the main unit still overheat underwater? I just ordered the camera and plan on taking it while snorkelling.

[@ScottyMakesStuff]

Thanks for doing this review Roo! Really well put together as usual! So, as we expected, it's mainly a software solution with a finger protector. I do wonder if the image has been downgraded/reduced as part of that firmware upgrade. Unfortunately, I won't get the free case as I've been told by D1-Store Brunswick that you only get the free case if you purchased it originally from DJI directly :( But I do have a magnet I'm not afraid to use it ;-)

[@Roos-Reviews]

Hey Scotty, Haha "I have a magnet and I'm not afraid to use it". I was thinking, since the case is a poor fit for the power combo, as is the Smallrig polymer case, maybe that's a market gap you could fill. I really wish there was a case similar to this, but that properly hugs the power module and protects that front face too. If you made such a solution I'd be happy to buy one. I wonder if others would too.

[@chucknorris8704]

That's pretty piss poor service from DJI not to send out a free case. Doesn't matter where one buys it from, should be free for all, permanently. You should put your Karen hat on demand a manager. I equate this overheating issue to when a car gets a 'recall notice' sent out and the manufacturer has to rectify the fix, free of charge.

[@Ozpeter]

I also bought from the D1 store, and I'm getting the free case through the announced procedure. Try that!

[@Roos-Reviews]

I bought mine on Amazon and the coupon for the case appeared in my DJI account automagically.

[@Ozpeter]

@@Roos-Reviews I just looked at the Amazon page and I was surprised to see that they do warn purchasers that they should get one for free anyway - is this the first time that someone on Amazon has actually pointed out that you don't need to buy what they are offering?!

[@Kudrihan]

How About Magnetic Cooler For Smartphone ? Can use on DJi Action 2 ? I Usually use cooler for record video on smartphone. Can Handle Heat problem. But sounds Noise because fan at near mic

[@emirgoodman250]

Thankfully, DJI found a way to extend recording and reduce the heat the camera accumulates! The magnetic protective case does a lot of good for the Action2!

[@michaelripple8371]

I find that mine will not charge when I put the case on it

[@Nshowtime.42.]

@@michaelripple8371 my Action 2 just stopped charging with the Magnetic Case on the Camera portion. If I take the case off it will charge.

[@Disorrder]

Wow, really unexpected results!

[@pazuso]

This is a great helpful video. You wasted your time doing this, so we don't need to waste ours lol thank you so much, it is very well appreciated.

[@backyardfishing1]

I just bought the action two during the amazon days and got it for 299$ US with the cover. I do not see the issue like you are showing here with screen mod unit so maybe they have addressed it. Still learning to use this camera and trying to find the best settings. Thanks for the tests as they are helping to decide whether or not I will keep the camera.

[@Roos-Reviews]

Which screen mod issue do you mean?

[@backyardfishing1]

@@Roos-Reviews sorry misunderstand you as you were talking about the battery module.

[@Roos-Reviews]

Oh right, yes it doesn't fit well on the power module, but it fits the dual screen version.

[@ManishPanchalVlogs]

That is Great, I ended up buying GP9 Though.

[@pegasis1112]

That case also for the dual screen combo, so no protection for 2 sides

[@Deej_RC]

Awesome tests!! I’ve done the same with my case. Lol

[@XXu-vf3bz]

I put a $10 phone cooling fan on its side awkwardly and got infinite record time in 4K60 until battery died. Plugged the complete screen combo into 5V2.4A AC adapter but seems the device is draining more power than 2.4Amps in 4K60. After 90mins it's only got 20% power remaining. So really DJI or PGYtech or Telesin or whatever third party company should make a unique shaped fan cooler for action 2, or create a fan+screen module to the product line and it will 'sort of' solve the problem.

[@DavidSmith-qp7yk]

did you find a custom cooler?

[@XXu-vf3bz]

@@DavidSmith-qp7yk Any magsafe cooler should do. They don't have any clamps or claws and can easily attach to Action 2. I have already upgraded to 3rd gen though.

[@adamh8140]

In order to compormise the metal to metal heat transfer, they actually solve the losen contact point problem I have. The problem is when you recording onto microsd card, a small shake or wabble will cut off the recording. But through all my test, the best solution you can get is have the SmallRig dual cage. That one made me run 4k60 indoors until battery die, and the whole stuff is not too hot to touch.

[@Roos-Reviews]

Yeah it's a really good case. It protects it with a metal cage and acts as a big heat sink. But it makes the camera too big for my use.

[@ashleybrown.94]

Where did you get your small rig from if you don't mind me asking, I have no idea which ones are good or not

[@adamh8140]

@@ashleybrown.94 Amazon, is the metal cage (frame), not that dual magnetic case.

[@digitalgrumpybear]

Did you have the temperature cutoff setting on high or normal? Does having the case just allow the camera to switch to the high temperature setting for the countries that did not allow it or does the case activate a further higher temperature. I just got my action 2 yesterday so I didn't test that rigorously but with the temp cutoff setting set to normal I actually got 1 minute less recording at 4K 30fps with the case on compared with the case off in an indoor test.

[@Roos-Reviews]

The case doesn't help much with European models, unfortunately, because they are not allowed to go above a certain temperature. I've seen people say they only get about an extra minute. Where as on the North American models the times are massively increased because of how the case activates an even higher temp limit in the firmware (I explained how it works in a series of videos about this case).

[@BB-35]

Really helpfull video, But i reliased you missed some heat test for some quailty rates.

[@ThePopLyrics]

I just got the 128gb version and I'm getting a power drain when the camera is connected to the power module even when it's off. Say both are at 100% before I go to bed, when I wake up the camera stays at 100% but the module is at 80%. Do you have this issue as well? I can't tell if it's a firmware issue or is there's something wrong with either the camera or the power module.

[@MichaelTapel]

Does this camera have pre-record function where it records the last 30 seconds or so after your press the shutter?

[@Roos-Reviews]

I don't think so.

[@marqriley9460]

So with this does the Action 2 come closer to the Osmo Pocket & Pocket 2 recording time in 2.7k or 1080?

[@Roos-Reviews]

I did a recording time test for the Pocket 2 comparing it to the action 2 and two other cameras. It's a few videos back.

[@imagineFly]

Is it possible to put ND filters using the protector?

[@Roos-Reviews]

As far as I know, no. If the case is on, wecan't put filters on it. Maybe a company will find a solution and bring it to market soon.

[@countryhorse479]

I recently bought Dji action 2 but I found the power button on camera unit is hard when compared to button on power module… just want to know if it is just my unit or common in all Dji action 2…

[@Roos-Reviews]

The button on my camera module feels about twice as stiff as the one on the power module.

[@anthony445]

same for me. im guessing the IP waterproof rating on the cam side making it stiffer with heavier seals.

[@cohenlopez]

Mine’s the same as well.

[@Certified3D]

For all these tests did you have the temperature threshold set to high?

[@Roos-Reviews]

Yes if I recall correctly I did have it set to high for every part of this video.

[@michaelmarcano9200]

where did you get the tiny magnets?

[@Roos-Reviews]

You can buy them on Amazon, but I salvaged them from product packaging.

[@michaelripple8371]

No better camera for FPV

[@RelakS__]

You have nice results. I expect that you use High temperature threshold. I am allowed to use only the standard threshold, but magnet or case does not make any difference compared to the naked camera. :(

[@Roos-Reviews]

Yes it is unfortunate. In standard temp mode the case only extends 4K60 run time by about 1 minute.

[@RelakS__]

Lol? Yesterday while I used the camera with the magnetic case on my bicycle, the camera overheated in 6 minutes. I removed the case, continued to shoot without waiting, and it made another 11 minutes. I arrived at home maybe in 9 minutes and put the camera down. In this experiment I used 4K 60fps, HorizonBalancing mode. So, it looks like that any kind of case is a no go for me, even the dji magnetic case :(

[@Roos-Reviews]

Are you using a European model?

[@RelakS__]

@@Roos-Reviews I guess. I bought it in a hungarian Media Markt. One strange thing: I should be able to set it only to standard temperature limit. Now, that I play around with the camera, it allowed to set Hight limit. I am curious if it will stay, and does it anything with the recording lenght

[@Roos-Reviews]

If you can set it to the high limit you should find that with the DJI case installed it records for much longer. The extended recording time only works when the case is detected and the high temp limit is on high. The firmware then allows the recording to go for longer.

[@AKIN180]

Im in Türkiye with action 2 and i cant even take recordingon 1080p after 4 minutes its overheated

[@markrichter4620]

Willnot fit on the headband when in case

[@Roos-Reviews]

Yes, I had to design my own 3D printed one.

[@raknin]

The issue is that you need to do the test outside your home. The heating issues arise when the camera is static and not in the move this is action camera.

[@Roos-Reviews]

I've answered this a few times in the comments. If you take a read you'll see my explanation. But basically it comes down to the importance of doing controlled, consistent tests. That's not possible outside. When I compared the overheating speed of 4 action cameras side by side it had to be done in a controlled environment to be fair.

[@justin4n6]

Yes massive fail on their part not making the lower housing fit. I remember when GoPro cases shipped with multiple backdoors depending on what setup you ran with the camera. Come on DJI get it together and make a case that fits

[@Roos-Reviews]

Yep, the top part is perfect, but I'm hoping for a better bottom part alternative, maybe from a third party.

[@francescoliguori4708]

Sorry, but for me the Magnetic Case does not give any benefit in recording time at all. I live in Europe and I have only Standard Temperature mode. Action 2 Power Combo. Firmware: 01.03.30.20. I just did two indoor recording tests (temp 24° C) at 4K@120 and RockSteady stabilization: WITH Magnetic Case + Power Module: 6 min 08 sec WITHOUT Magnetic Case + Power Module: 6 min 09 sec 4K@60 WITH Magnetic Case + Power Module + RS stabilization: 8 min 38 sec I have also tried the magnet but the situation does not change. Any suggestions? Thank you very much.

[@Roos-Reviews]

Unfortunately European models do not benefit much from this, other than having damage protection if dropped.

[@henrybutcher9436]

Even charging it will result overheat

[@jasonlevi8059]

If the camera was static why did you need Rock Steady?

[@Roos-Reviews]

Because most people keep rocksteady on all the time.

[@jasonlevi8059]

@@Roos-Reviews I know but it consumes more battery.

[@Roos-Reviews]

It was an overheating test.

[@mignaton1957]

j'ai les cases, le problème est que si tu laisse celle-ci, pas de chargement de la batterie, si tu mets la batterei dessous, avec l'écran, cela vient des plots je pense que ça ne va pas une fois enlevé les cases, ça recharge normalement, cela ne sert à rien de mettre les cases pour recharger, c'est pas top d'enlever et de remettre d'autant plus que la durée dce la batterie de la caméra ne dure pas longtemps, déçu, pourtant cette caméra à du potentiel, mais la conception est à revoir de fonte en comble....

[@rickaguilar1833]

Sill waiting for my FREE case from DJI!

[@Roos-Reviews]

Mine took about 2 months to arrive.

[@rickaguilar1833]

Finally got mine! Had to go to the website though! Came within 10 days!!

[@elcamino6699]

I find it very interesting that they intentionally built in a switch in the first place. Seems to me like a "Create a problem - provide a solution"-tactic

[@Roos-Reviews]

One suggestion I heard is that the switch was intended for the magnetic macro lens adapter and they just dual purposed it for this overheating solution.

[@chucknorris8704]

You forgot the most important part! Where does one buy a little magnet thing that you used to trick the camera?

[@Roos-Reviews]

That was just for doing the tests. It's not really practical to have a magnet on there when using the camera. You can buy the magnets in hardware stores and Amazon, AliExpress.

[@chucknorris8704]

@@Roos-Reviews Why isn't it practical? Is it a temperature issue? I'm planning to superglue the magnet onto the body.

[@Roos-Reviews]

It gets so hot that it's uncomfortable to hold. If you have air moving over it though, and you aren't holding it I suppose it could work. But there are better ways to do it than glueing the camera. For example, you could just put the case on it. For maximum run time you could connect the two modules and cut off the bottom part of the top module's case so that the two modules are connected metal to metal.

[@georgebrown8493]

I’d recommend anyone who is interested in the Action 2 to simply get the Osmo Action instead. It’s a much better reliable action camera, doesn’t overheat after a short duration, removable lens, removable battery etc

[@WeWillNomad]

I have both and would buy the Osmo Action again - if only I could find it. That said the Action 2 is a very nice addition and I really like it.

[@georgebrown8493]

@@WeWillNomad I hope DJI reverts back to their Osmo action 1 days with the future Action 3 (or whatever future camera they go down with)

[@Free__Speech]

My DJI Action 1 can record over 1 hour at 4k 60 😊

[@Roos-Reviews]

That's brilliant!

[@SubaStar24]

Lol Idn why it was so confusing to me, I had to write everything down to understand the difference lol so final conclusion: use just the camer with case or both camera and battery without case but with magnet on top

[@damianreyesavila3402]

.Camera Test Room Tour Channel Movie in Year Wednesday April 5,2023.😐.

[@bukketball]

💩 I still haven't bought it !!! 🚽💨

[@anthony445]

its beautiful garbage as one youtuber puts it.. Great for FPV drones with small 3-5 minutes flight sessions! Dynamic range kinda sucks though =/

[@BR7AVEONE]

Good that I didn't bought this crap case for €25

[@anthony445]

the magnet "hack" is destructive to the internal components! DO NOT USE that magnet use the function in the proper way with the cooling case. Yes the case does help transfer heat and cool the unit because of the substrate material used for the case and surface area. Simple thermodynamics here im no expert but this is the general consensus among the "pros"

[@Roos-Reviews]

I wasn't aware there was a consensus opinion for this already. Who are the "pros" you're getting this consensus from? I have only seen one guy on KZbin say it damages the camera, but he didn't do any tests or show any evidence for that. I've taken lots of measurements and determined that doing the magnet trick for the purpose of carrying out these tests does not break the camera. I am not advising anyone to glue a magnet to the camera and use it like that instead of using the case. The magnet in the case activates a higher temp shutdown limit which adds an extra 8 minutes. The case itself adds about an extra minute on top of that.