Mavic air 1 big mah battery mod
- Thread starter maviclipot
- Start date
The original battery have a capacity of 2375mAh... that's the complete battery pack with all 3 cells.
The aliexpress listing claim 3500mAh per a single cell & you need 3 to get the correct voltage. A greater capacity LiPo cell will in general always have bigger dimensions... and the claimed capacity increase isn't small, it's over 4 times greater.
So either the claimed capacity is false or the cells are MUCH bigger dimension wise than the original & will not fit into the battery shell.
And you read this on their listing..?
Please pay attention: The battery protection boards of all series of DJI drones are all locked. Even if the small cable on the battery pack is unplugged, the protection board will be locked. Any disassembly of the battery will lock the battery protection board. Professional tools are required to unlock the battery pack before it can be used normally. Do not try without relevant technical experience or without the help of professionals .
The aliexpress listing claim 3500mAh per a single cell & you need 3 to get the correct voltage. A greater capacity LiPo cell will in general always have bigger dimensions... and the claimed capacity increase isn't small, it's over 4 times greater.
So either the claimed capacity is false or the cells are MUCH bigger dimension wise than the original & will not fit into the battery shell.
And you read this on their listing..?
Please pay attention: The battery protection boards of all series of DJI drones are all locked. Even if the small cable on the battery pack is unplugged, the protection board will be locked. Any disassembly of the battery will lock the battery protection board. Professional tools are required to unlock the battery pack before it can be used normally. Do not try without relevant technical experience or without the help of professionals .
Can i use this chip cp2112 - Buy cp2112 with free shipping on AliExpress and some free windows program to unlock it in home ?
Sorry... not a clue, have never modded a DJI battery myself.
isabelgodfrey0
New Member
Hi,
Not only CP2112 which is hard to find and somewhat costly, you can even use an very cheaper board and widely used Arduino NANO to reset the PF flags to revive from the hibernation mode of the battery.
It is very easy and simple, Initially i searched for the CP2112 but its completely out of stock in my country and searched for alternatives on google and found this : DJI Mavic Air battery recovery (Clear PF) using Arduino - Circuit Schools.
I successfully recovered 3 batteries which were kept aside for 1 and half year. Hope it helps you too..
I tried battery killer and the CP2112, but got error could not connect
Device not supported
Any ideas?
Device not supported
Any ideas?
There are many ideas. From a faulty sp2112 to an incorrect connection. From a crooked version of the program to incorrect installation of drivers. Two years ago, a moderator wrote to me unequivocally - the program cannot be discussed. The developer Mikhail's account was simply deleted. So now it is a problem for users.
So much for free exchange of ideas…
I’d be genuinely curious on what basis was that direction given. I’ve been on this board since the original Mavic Air came out, and it has worked very well for me; I’ve learned a lot, and I’ve shared my knowledge with many others.
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I recorded a video a long time ago to help users. Take a look, maybe it will be useful.So much for free exchange of ideas…
I’d be genuinely curious on what basis was that direction given. I’ve been on this board since the original Mavic Air came out, and it has worked very well for me; I’ve learned a lot, and I’ve shared my knowledge with many others.
I wish I could find Mikhail, and ask directly, but I suspect he’s from Ukraine, so he would have more immediate concerns than drones.
POLITICAL VIEW — It’s a real disgrace that the world even allowed a situation to exist where Putin considered it OK to just take over a sovereign country. My father grew up in western Ukraine, which was a part of Poland, at that time…about 100 years ago. Best wishes and prayers to you and yours. — END POLITICAL VIEW
The “device unsupported” message might be explained by not getting the battery talking to the CP2112, BUT
I get the same error when the CP2112 is plugged into a USB port on my Win11 Pro laptop, with ==NOTHING==
CONNECTED TO THE CP2112 BOARD!!
Clearly this has nothing to do with the battery! This is an issue between the board and my laptop…a pretty “vanilla” setup. My OS is fully up to date. That makes me suspect that the problem is in the software.
Does anyone know of a way to determine if the OS to board interface, Is OK?
I went to the link in the video, and it opened in Google chrome, which offered to translate. You’re right - it does work, though I have a hard time following the discussion.
Slawaw, can you answer my question in my previous post about the device unsupported message using the DJI batterkiller app, even when the 2112 is not connected to ANY battery?? Is there possibility of problem in the 2112 itself? Do you have any suggestions?
Slawaw, can you answer my question in my previous post about the device unsupported message using the DJI batterkiller app, even when the 2112 is not connected to ANY battery?? Is there possibility of problem in the 2112 itself? Do you have any suggestions?
If you are having trouble running the most recently released version 0.5 Beta 2 compiled 1 Feb 2022 with the message:
"Application was Unable to Start Correctly (0xc000007b)"
"Application was Unable to Start Correctly (0xc000007b)"
even if you have included mfc140u.dll, vcruntime140d.dll etc as shown in @Slawaw 's video , make sure that you also have the most recent MS Visual C++ Redistributable DLLs installed, since this version of DJIBatteryKiller.exe relies on the 32-bit versions of:
api-ms-win-crt-stdio-l1-1-0.dll
api-ms-win-crt-stringl-1-1-0.dll
api-ms-win-crt-heap-1-1-0.dll
api-ms-win-crt-runtime-1-1-0.dll
api-ms-win-crt-time-1-1-0.dll
api-ms-win-crt-convert-1-1-0.dll
api-ms-win-crt-utility-1-1-0.dll
You can download the Visual Studio package of redistributable DLLs containing these at https://aka.ms/vs/17/release/vc_redist.x86.exe, and just run the download to install them properly.
I tried two of those devices on a mavic 2 battery neither resurrected the battery and I'd bet the battery had only recently 'died' and was not far below the trigger voltage.
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