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Mavic 2 | Battery Rebuild Success
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- Опубліковано 27 чер 2021
- Cell replacement battery rebuild for the Mavic . After a lot of research on forums and UA-cam, there wasn't a lot of information that I could find of people that have rebuilt a M2 battery and verified it. It was all just hearsay with no evidence and of course the back and forth comments with no actual evidence. In this experimental video I investigated the possibility of changing the cells in the battery.
You may think this is just a simple cell replacement, but DJI's BMS can be bricked. By bricked it becomes inoperable. I spent hours and sacrificed 2 batteries (because I bricked the first one) to find out what not to do. Than developed a logical way to successfully replace the cells which is when I tore up the second battery to make this video as evidence.
These batteries are expensive and most are reaching over 2 years since production, while many have had good run and are still running. There are allot more that have had them swell due to cell decomposition and gas expanding the cells. This is dangerous because they can pop off the drone in flight and you can lose your drone or damage property or hurt people.
In this experiment I did 2 things.
1. Save money, the new battery cells x4 are 20€+shipping = 30€. A new battery costs around 130€. Most of you watching would have your batteries sitting idle and out of warranty so you're at a loss like me.
2. Prove that it is possible without fancy and expensive reprogramming.
I purchased the cells here : fr.aliexpress....
I am not affiliated nor do I get any kickbacks. Just sharing because Im caring.
So this is #1 method that works without any software flashing etc. I still would like to experiment more but I do not have any more spare M2 batteries to work with. So i'm open to donations of old M2 batteries that are bloated or have bad cells haha.
Also if anyone knows where I can buy empty M2 battery shells, that would be awesome to actually make a refurbished battery.
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Video is at 60FPS so you can slow down to 25% if you need. I did this to reduce the playback time. Thé LED/Switch ribbon was left connected so I could check the battery status during the experiment.
Man by chance the Imax b6 charger makes my Mavic Air batteries last longer. Thank you very much.
Yep! I use the Firefox add-on Video Speed Controller. As needed, fingertip control of video speed.
thanks, it is great that DJI Battery Killer software has gotten better and better
Hi Anthony,
First of all many thanks for sharing your experiments!
It's saves to others time and avoid us wasting expensive batteries, even dead.
I carefully followed your battery rebuilt process and something caught my attention.
The battery cells sold by our good friend Ali Xpress comes separated from each other as...individual cells.
On our Mavic's (2 Pro in my case), four cells are working together being welded on a base circuit.
So, if I well understand your way how to proceed:
1. You get a spare base welding battery circuit coming from a "dead donnor" battery (meaning that its BMS being disconnected from power is considered as dead)
2. You prepare the new batteries cells set by welding them on the base circuit coming from the dead donnor
3. Then you power the damaged battery set in parallel with an external power source in order to keep the BMS powered
4. The genuine cells base circuit coming from the damaged battery are split from their base circuit, keeping the BMS powered by an external power source
5. The new cells set welded on its base circuit is then welded connected to the BMS
6. Once the welded connection between the new cells set and the BMS is done you check the voltage
7. You disconnect the external power source used to maintain the BMS under power
8. Then I guess that you retreive the base circuit from the damaged cells in order to re-use it on the next fix as the cells needs to be prepared before splitting the BMS from the base circuit
If I well understand the process it means that a battery BMS must sacrified to retreive the cells base circuit... this one being necessary to prepare a cells swap under power.
I am right ?
Thanks a lot for your appreciated support
Laurent
Hi Laurent, yes that is correct in all your steps. I have made another video to reactivate the BMS, so the process in this video is if you don't have a CP2112 + DBK software. Maybe you can look at that video and you might be able to rebuild another battery and activate the BMS.
If I had a donor battery I would do it a little different.
1. Prepare replacement cells.
The donor battery is dismantled and the battery is disconnected from the battery PCB (The battery PCB is the one that the cells are soldered to, it does not have any important components, it is just for the cells assembly. You will notice the Red/Black and the Blanca cable/connector.)
Install the new cells in the same order on the donor battery PCB. At this time it's completely disconnected from the BMS.
Once the new cells are soldered into the donor battery board. You are ready to swap into the target battery.
2. Open target battery (battery you intend to use), disconnect only the Balance connector and leave the Red and Black connected.
Now you connect the Balance connector from the previous battery PCB that you just replaced with new cells. This will provide power through the Balance connector.
You can now disconnect the old battery RED and Black lines from the BMS. It will be powered by the rebuilt pack. Then you solder in the Red and Black to complete the exchange. In this way, there is no need for an external power supply as I did. I did not have a donor battery so could not make more options.
@@ANTHONYVLOG
Anthony,
Many thanks for your fast and kind answer to my questions, that's very kind from you. I will thoroughly follow your suggestions once the new cells will arrive.
At the moment I am awaiting the delivery of my CP2112 adaptors, hence I wanted to get rid of it use by using an alternate method. As soon as I'll get the CP2112 I try to use it along with DBK.
It looks pretty interesting to have an alternate mean to fix the DJI batteries glitches as their cost is pretty exaggerated.
On some points their bugs remain not understandable.
For example on one battery unit I own, having only 19 cycles, the battery accepts to load, the batteries LED indicators works fine without displaying any kind of malfunction signal.
Once installed into the drone the battery works correctly, the Smart Controller shows each unit along with the total, cycles numbers.
Everything looks and behave as normal.
However, as soon as I try to start the motors a message displays saying the battery is not correctly installed into the drone...so it is correctly installed.
The battery is absolutely normal, no sign of swollen, so the installation is a perfect fit into the fuselage.
All the connectors have been thoroughly been checked using an electronical microscope to be sure nothing is obstructing a connector.
The connectors are as clean as a 19 cycles battery can be.
So, I hope the use of CP2112 and DBK will allow me to save this almost new battery.
By the way, after having watched some of your external video's shoots, it seems that we live close from each other as I live in Geneva.
Thanks again for your kind support and advised advice!
Laurent
@@laurentvelati7565 oh yes. Very close indeed! For the battery that gives the warning for « not installed correctly » if the battery like the Mavic 2, it has two small switches on the locking tabs that tell the BMS if it’s closed or open. A malfunction in the switch can cause this problem even if the battery is good 👍
Well done!
Thanks for sharing!
Cheers from Bucharest Romania!!
This is exactly what i was looking for. Damn did i search whole youtube for this
This guy is amazing!!! Keep up, bro 💪
I’m a qualified electronics engineer and I would have done that a little differently but none the less keeping it simple the way you showed us will do the job quite fine, I would have used my lab power supply that way one pack won’t interact with the other pack by soldering them in parallel. One thing is the more exact you can be with your voltages the better ie: if swollen pack is let’s say 15.45 then your pack your using to jump across should also be 15.45 and your new pack also be 15.45 it’s all about keeping those number absolutely exactly the same and then you will not have any scary moments. To ensure packs are identical in voltage you need to have them sit and settle after a charge and make sure they are resting at the exact voltages otherwise they drift if you use them right after a charge and I don’t know what that would mean to the intelligent BMS in the DJI batts, maybe nothing, maybe a false voltage displayed who know without seeing the BMS programming and schematic. Thanks for the video it was informative, it will help many including me, as I would have disconnected the BMS thinking it would be fine, so thank you for the video!
Use a simple SPDT switch (one that does not short the 2 connections during switching) and a decoupling capacitor.
Other option is to use supercapacitor rated 17 V or more with about same voltage with the old battery ...
Another engineer claiming they can do it better but never do a thing
Hi i need advice from you i get my drone after 3 years from customs its zino2plus its battery is not charging and not working its cells are also swallowed little bit, can i replace its cells with dji battery cells?
Hi Anthony. I rebuilt my mavic 2 battery pack. I have the CP2112 Adaptor - and the DJI Battery Killer 13/06/2021 Software-
I tried your early method and kept power to the BMS. Unfortunately after putting it back together, I can't read the BMS now and the first led just blinks all the time. It won't take a charge. When I do press on the power button, all four leds light up. The voltage at the battery pack is correct. Did I completely kill the BMS?
Hello @ANTHONYVLOG
You do not need to do this whole process. First unsolder the red cable then unsolder the black cable and then unplug the balance cable! When you connect the new battery do the opposite, first conect the balance cable, then solder the black cable and last solder the red cable. The BMS will never be bricked in this way.
Yes thank you for this. It is the way to do it condition the existing pack have good balanced cells. In which case they are, so my advice is double check cell voltages at the connector and total voltage prior to proceeding to avoid any mishaps. Good bless 🙏
Is this method safe? what is the logic behind this method? how BMS survive with this method? can you give more info please. Thank you.
@@Shaban_Interactive it is safe, the principle is the same. Keeping power to the BMS, the balance cable supplies power as well so it works the same as the method I did.
@@ANTHONYVLOG But he says first unsolder red cable then black one and then unplug the balance cable. When you do this BMS will not be able to receive any power. I am just confused :(
Sorry for the late reply. You leave the balance cable connected to the exsisting battery. Just unsolder red and black than solder new pack red and black than disconnect old battery BMS cable and connect new battery BMS cable.
This is only possible if you have 2 batteries, if you only have one that use my method.
Also I am working on the BMS video, so if your BMS is blocked don’t worry I will release that video in February.
전에 님의 영상을 많이 참고 했습니다.. 지금은 제가 많은 사람들의 배터리를 리폼 해 주고 있습니다. 그리고 확장 배터리도 만들어서 35분을 비행하고 있습니다.
Very good explanation
Saw your video on resetting Failure in bms. I believe some chips have a password needed. I've heard of one software that magically works out the passwords but it is expensive. Does the software you showed in other video handle password protected bms chips?
Thankyou. Yes indeed there are software methods to unseal and clear the PF flags on the BMS. I have made videos of this as well with DBK and TRB softwares.
Hope you and your family havebeen good man... I haven't seen you in a long time and miss seeing your videos.
Thank you brother. I had to fly to Fiji because my dad went into a coma during surgery. I’ll be back in France next week and I’ll continue with new videos.
@@ANTHONYVLOG
🙏...
Hey Anthony,
Thank you so much for the great instructing video you made!
I have a question about the method you gave on your next video for Dead battery fix with cp2112 & DBK.
Is it possible to unlock Mavic Pro Platinum battery (seemingly like MP1) with CP2112 and DBK?
Mavic Platinum batteries are with BQ30Z55.
I tried them the same way but still no luck in reading the chip. Software shows Error reading SMbus...
Bro same problem if you have solution of this please help me also
HI,
Great Video. Where can I buy the cells in the USA? I clicked on the link but the cells won't arrive until December 4th, 2023.
Thank You
Over my head there bud, cool stuff!
Thank you so much 😊 basically doing what people said was not able to be done
At 2:15 "This the new pack that I built in a previous video" where is that video please? Thank you
Yeah I really want to see the previous video too. I'de like to know how he dealt with the spot welds on the tabs for the cells.
Solder them off. The spot welds are only spot welded to a plate. The plate is soldered to the board on the battery (not the BMS)
@@ANTHONYVLOG Thanks for explaining I haven't actually tried yet as my batteries aren't puffing up just yet, but I will likely try in the future :)
Amazing infroamtiove video. Thank you so much. But I have a question. When you put new cells to the BMS, it continues counting the charge cycles on top of the previous charge cycles right? I will not start from zero. So this mean when the battery reaches the maximum charge cycles it may also lock the BMS right?
Hello, it will continue to count the charge cycle from its current position. Currently there is only speculation that it will stop at 600 cycles but no one has reached this far yet without the battery failing on the original cells. If I get to 600 ill make another video to see if it blocks or continues.
@@ANTHONYVLOG I DM you on whatsapp.
I'm about change the cells in my battery for bigger mah cells for longer flight time, if I keep a dummy pack connected like you did you think it will work and I will get longer flights? I'm looking at cells between 5000mah and 10,000mah just haven't decided which ones to get yet? 👍🏻🤘🏻🤘🏻
Hi Anthony, its great to see what you did there. I was searching to rebuild Mavic Air 1 battery but couldn't find anything at all. So can you check if you can rebuild one for Mavic Air? I know you don't own the Air neither any Air Battery but since you successfully rebuilt one of Mavic 2, Air's one might be a simple for you. (Maybe? finger crossed) Or Any help on making aftermarket lipo for Mavic Air? There are a lot of people just like me who are searching for Mavic Air battery but its out of production and rebuilding one seems to be the only go to option right now.
Hello, I’m in Switzerland for a production at the moment I’ll be back home in few days I’ll check my box of spares and get back to you.
@@ANTHONYVLOG Thanks a lot bud. By this time, let me update you with what i found, I saw a video of tearing a Mavic Air battery up and from that I found ZDF lipo titled for Mavic Air, same V Wh from Aliexpress. Air 1's battery is differently built, not like M2, I dont see any BMS connector but 3 lipo is directly connected in series to the PCB. I hope you can check and give me an idea about how to make piggy back battery for bypassing same like your trick. looking forward for your reply and have a safe flight back home.
Hi i need advice from you i get my drone after 3 years from customs its zino2plus its battery is not charging and not working its cells are also swallowed little bit, can i replace its cells with dji battery cells?
Thanks so much for this rebuild! Would you be able to include the break down video at normal speed? I would like to use a bms board from a usable M2 battery for a 7000mah (8 Air 2s batt cells) And i look forward to the unbricking that you are working on!
That’s an interesting project. I don’t know if the terminals are the same as they are Fixed to the BMS.
Good night please with the Imax b6 charger I can charge my Mavic Air batteries, which are low on cycles. Thank you very much and success on the channel.
Error to unseal battery and read info with CP2112 adopter it showing
“ Error: to show files of SMBus ”
Can I use this tool to unseal Mavic Pro battery using Adruino?
great job! I have a question: Why not just make a Li-ion 4S2P convertion with Sony VTC5A? Do you recon the c rating would be too low for M2P?
Thankyou for your comment, the 18650’s are much bigger when you stack 8 cells. 4S2P. The weight is much greater as well so we lose on the thrust to weight ratio. And finally, lI-ion cells when they discharge also reduce current as they discharge where as lipo cells will maintain good current supply even as the cells discharge better than their 18650 friends.
Hi will this work with adruino for my Mavic Pro batteries?
Do you know the error of not showing mavic 2 battery parameters?
BMS issue. I have tried contacting DJI and they can only replace them on warranty but said repair would cost about the same as buying a new battery.
@@ANTHONYVLOGDo you say that under warranty they could replace it with a new battery or would they do the work of replacing the cells? explain please
@jesusmaza3514 it would be best to contact DJI and open a support ticket. This video is over 2 years and things may have changed with DJI.
Hi, i am in the process of connecting the bms to the new cells, i noticed you soldered the power and ground then moved the balance cable and the batt was already powered on. Did you do this on purpose, power on the batt then disconnect the balance from the old and connect to the new with power on?
i think it worked! i took a board from an OEMM2P batt, and transferred it with your method to my 7000mah batt, and everything looks good. I am fully charging just to make sure all batts are being read correctly. This was a Giant help!
Can you make one video about dji fpv battery repair? Thanks!!!
Changing cells is one thing but the controller will remember the condition of the old ones as it doesn’t know they’ve been replaced therefore a full capacity of the new ones won’t be used. Any idea how to restore an original capacity using cp2112 and dji battery kiler? There are some additional functions but no description how to use them - any hint appriciated. Thanks
Since the date of this, I didn’t adjust the cell chemistry or captivity in the BQ programming. The batteries work to full capacity, charge and dischargeW the only thing I reset was the cycle count and reset it to zero as it was new cells.
The capacity that is programmed originally will not be changed until you change it. And you only change it if your cells are / have a different capacity.
The BMS doesn’t bother with what charge it had before the change, if the cells are the same capacity it will charge / discharge as normal.
@@ANTHONYVLOG i thought it works this way: brand new battery has a designed capacity of 2375(MA1) as the battery gets older capacity of each cell degrades and it’s reflected in full charge capacity parameter eg: 1900mah on this basis bms calculates “wear level”. Since it doesn’t know we’ve replaced cells it should not try to push more mahs than he was able last time as the capacity magically couldn’t increase to prevent explosions etc. Are you 100% sure that in order to get full designed capacity od 2375mah all i need to do is replace all 3 cells for brand new ones and reset cycle count for reference? Also what does “chip reset” do on dji battery killer sw ? Thanks for your reply.
@@losien1 100% you can pull the EPROM data yourself and see. I use TRB for the « important things ». DBK just for Testing.
BMS doesn’t record wear level like iPhones. Just stores capacity, chemistry for cells installed with regards to your question.
do you have the link when you put the new cells together, I don't see it
Hello, if you keep the BMS powered up. You do not need to clear the PF by software.
How about the batterys voltage sir, is it balanced ?
Yes they are balanced within 0.02V
Faz um vídeo de reparo na bateria do dji mini 3
Hi Anthony..I am using CP2112 to revive my battery and unfortunately I am getting an error saying unable to ‘Unseal/FAS’ Battery..any idea how to resolve this?
Thanks
Unseal the battery first than try clearing PF again. What battery is it?
where do you buy a credible lipopack ?
any idea with Mavic air2? what is the proper way to recell? i tried to change the cells and run the DJI killer. the battery wont turn off. thanks
Can you read the BMS? Does it come up on DBK?
where did you buy your spot welder and is it good?
Aliexpress. It’s ok for small packs but not good if making big packs, gets too hot to hold.
Can i use li-ion batteries instead of lipo?
If you want!
But li-ion can be charged max 4.1-4.2v . Does it explode?
@@AnkaHobi that is dependent on the Li-ion cells you use. The 18650 cells I recycle some of them are rated for 4.35/4.40v. So please check the cells, usually they have a code stamped on them and you can look up the battery charts to see their ratings and specifications.
Hello mate, please should i follow the same procedure but for Mavic air packs? not sure if mavic air BMS may died also.
4550 c69a ic use remote please share datasheet details
Awesome work, im curious if it would be possible to install a battery of lower mAh on a mavic mini battery to bring down the overall weight with prop cages to under 250gr 🤔
It is possible and doable. Iv been using TRB software for recent experiments, they also rework the mini batteries. Look up patbooon labs TRB.
@@ANTHONYVLOGis TRB a paid program?
Hola buen día ,para baterías de Dji Mavic Pro que placa se utiliza ? muy amable.
Loved ur vlog Anthony, well done. Can this be done to my Mavic Air? I have 3 swollen batteries. Not sure if they are the intelligent type?
Hello, thank you for your kind words. As long as the battery is still active you can. If it’s non responsive than you will need to software unlock after changing the cells with either free or paid software and their respective interfaces. I have other videos on unlocking them on my channel. 😊
Thanks again Anthony, I just watched ur other vidoes, good work! So just to be sure,,,, to fix my Mavic Air batteries I would need to buy the cells and the EV2400 and use the TRB free software? If any of the batteries have power do I need to hook them up to another power source or not?
Really appreciate you helping us inbetween ur work and having a family
TRB is the paid option as it only allows free viewing but no unlocking. For the free option you will have to opt for the CP2112 adaptor and the DBK software which is in the description of video titled “DJI Dead Battery - Fix with CP2112 Adaptor”.
The condition for any of these softwares to work to be able to read the BMS is that the cells need to be above 3500mV (3.5v) each and a maximum discrepancy between cells 150mV.
Please let me know after you watched that one and if you have any more questions.
Oh ok, it took me quite a few reads and rewatched the video but I understand now.
TRB wants 1320 baht 30 pounds?? For a licence that you only use once to fix ur batteries?? That's very steep I think.
Why is everything so difficult and over regulated regarding drones?
BIG thankyou mate for all ur time and effort 🙏
@@dalemawby8717 TRB is a commercial battery repair software for laptop battery etc they are including drones so I made some experiments.
For the free software it’s called DJI battery killer and uses the CP2112 interface. You can download it in the other video and the cp2112 is not very expensive.
Can I still attempt this if my battery does not charge. It was in storage and I can't get it out of hibernation mode. I've left the battery charging for 24 hrs. It's all 3 of my batteries.
This is only for changing the cells on an active battery. If the battery is not recovering from hibernation, you can use the other method in my other video with software and a CP2112 interface to wake the battery up if the cells still have some juice above 3.5V each cell.
What will happen if i fly Drone with Lithium Ion battery pack?
Not sure haven’t tried with 18650 cells. My guess is it will deplete fast due to the weight of the cells compared to LiPo cells.
I have been wondering if anyone has tackled the Mavic Mini battery? I see it appears to be just 2 18650's not unlike the new X8 Mini and the upcoming Zino Mini. I wonder if the pins are the same on them
Thanks an interesting one. I’ll look on eBay auctions for non working Mini kit to experiment on. Thanks for the heads up 👍
@@ANTHONYVLOG I hav the x8 and mavic mini. The mavic mini batts fit in the x8. But hav not connected them. They fit oerfectly.
You are very lucky, I destroy 2 batterie packs because I was not aware of the BMS. So have 2 new packs I can't use.
Hi Anthony can you send the link for ev2300/ev2400 that you're using ? Thanks godbless
Hello, I used TRB with license. Here is there website download. You will have to reach out to TRB for a license. trb.patboonlab.co/download
Good night Anthony so with this jumping I can make a new battery in the Mavic Air 1 without depending on the ev2300 and its respective software. Thank you very much.
Yes that is possible if the battery doesn’t have a PF flag.
thank you very much for this material, great job, I will use this advice!
Hello!
Two question I have. (well actually one of request)
1. Could you please send schematic/video for creating this cells? (where should we connect the 4S cable wires to the batteriy cells)
2. Did you tried bigger capacity of cells. I try to find some alternative cells, but 3850mAh usually out of stock, but I can found 4075mAh, but I don't know what happen if I try to use this.
Thank you! :)
1. I don’t have a schematic. The BMS will have a discharge lead hard to mis. It’s the big black and red wires. 4S balance lead is not the same as normal, it comes with the battery PCB.
2. Yes, capacity and chemistry needs to be changed in the BMS after you replace the cells. You can use DBK or TRB.
if i use a cp2112 do i need to have a battery back up? or can i just replace the cells and connect to the cp2112 to enable the board?? thanks
Hello, no need for backup battery or the method I used in this video if you can clear the PF flag. This video was an experiment to do it without any software. (The hard way).
@@ANTHONYVLOG thank you, great vids 👍
may i ask about the specifications of the dji mavic 2 pro cell battery
3.85V max 4.4v 3850mAh
can i have the link to buy the cel
@@sandal_jepit.27 it is in the video description 😃
Thnks you
is there a tutorial for assembling 4 cels battery?
Hello, I have a problem with my mavic 2 pro battery, it does not charge and the charger lights red
Can you explain which charger you have. The official DJI charger brick does not have any lights on it.
my mavic 2 zoom battery does not charge, I connect it to the charger and in the charger dji turns on a red light and does not start charging
@@diegojourdan9314 use a Genuine DJI charger. No 3rd pty or charging hub. The original DJI charger will take the battery out of hibernation.
Nice job💪
Sir, can you make a tutorial on how to unlock the mavic pro 1 battery?
Hello, I am sorry I do not have Mavic Pro battery to make video.
@@ANTHONYVLOG Waiting for the video sir, I wish you success always
@@gogondronemania thankyou for your kind words.
@@ANTHONYVLOG You are welcome, sir
hi, i tried following your other video using the cp2112 board. but my problem after replacing the cell i was not able to read the info of my battery. it always have error "could not perform SMBus read 0x00" so it is impossible for me to "unseal" is there anyway i can unseal the battery? already used all the 4 grounds but still the same. battery is mavic2 pro
Bms can’t be unsealed it it can not read. Try reading a known working battery. If and when it works use the same pinout on the swapped battery. Cells need to be charged and within 150mA from each other.
@@ANTHONYVLOG i already charged using a balance charger. but when i measure the voltage at the small connector each color and different reading. the total voltage at 16.2vdc but each wire are different.
Try connecting the cp2112 to a good battery to see if it can connect. I don’t see why it should not work as you seem to have done it correctly. You can try swapping the sd and SC wires if you haven’t. Just don’t put them to ground or it will short out the cp2122.
@@ANTHONYVLOG yes when it did not connect, i tried to use the other good battery and it can read thats why im sure i correctly put my sda and scl. when i first replaced the battery i was able to make it work thats why i ordered additonal cells for another two battery that was bloated. but when i tried to dis-assemble again the previous one to make the soldering better after that its not working anymore. so i tried to do another one but still the same thing happened.
Briefly short the + terminal from the connector to the + from the battery board. Than try connecting cp2112 again. If it still does not work, I have no idea without having access to the board to check.
Hello Anthony, I want to know if you do that work. I have 3 batteries that I would like to repair.
I look forward to your message. Thank you very much in advance!
HELLO, MAY I KNOW IF YOU'RE SATISFIED WITH THE CELLS YOU ORDER TO ALIEXPRESS?
Absolutely, I still use them and they are performing well.
Hey man I'm trying to use 18650 cells to make a larger battery pack for the mavic 2. I want to use the old bms, button and temp sensor. Do u have any information on the bms? Would be greatly appreciated thanks
You can use the old electronics and swap out the cells, but it’s advisable to change the battery chemistry in the BMS and the charge variables. Though either TRB with Ev2400/2300 or DBK with CP2112.
@@ANTHONYVLOG ok thanks I appreciate it. I'm curious if you know the answer to this. Say I was using a 12 cell pack to try and get 9000mah is it possible to wire the bms to monitor 3 cells each since it's a 4 cell bms?
@@12hyy7 hello, 12cell will have to be configured in 4S3P ie: 3Cells in parallel to make 4 packs than those for packs in series.
You can adjust the BMS to the new configuration.
@@ANTHONYVLOG thanks man! Keep up the great vids!
Hi off subject to video but I have a sc2p and it tells me it needs calibrated but when I do what it asks it tells me magnetometer calibration calibration needed with all 3 boxes red do you have any idea what to do
Can you check what firmware version the SC2P is running and if it is the latest please?
@@ANTHONYVLOG hi its 1.0.5 and says its up to date
wow, such complicated and dangerous way. you`re attaching li-ion pack in parallel to charged high voltage pack :|
first unsolder plus, then unsolder minus, then disconnect balancing plug. after changing sells plug and solder everything in backward order. i did this procedure several times
Thanks for chiming in. I appreciate the advise. Can you share your experimental video for the viewers? TIA
@@ANTHONYVLOG I used this video as instruction. Not sure if it works on latest firmware, but all my batteries have survived. ua-cam.com/video/XmXI0d0TtYk/v-deo.html
@@fedkot ah. I had watched this but could not clear the PF flag when I changed the cells, so I make some experiments and made this video as an experiment. My other videos don’t require this “experimental” method. Also note the disclaimers and when stated it’s an experiment I don’t intend for people to do it or if they do so, it will be at their own risk.
it's need a software to reset the board?
It needs a hardware interface that can either piggy back on the data line or directly to the pcb. Software is supplied with the hardware interface.
Hi , do you have the dimensions of this cells, I checked the ZDF 3.85V max 4.4v 3850mAh Replacement link and they are insane they want $367.00 shipping. Maybe if you can measure the physical dimensions and what is written on the label will help find other producers. Thank you.
The cell model is - 854871
Size - 8.5mm*48mm*71mm
Other information
14.82Wh 3.85v
What country, city are you in? I’d like to check the shipping cost. That price is not right for shipping.
@@ANTHONYVLOG thank you Anthony, I am in Botswana, I double checked now the shipping is insane 🙂
@@LucianComanphotography oh i see. Yes Unfortunately Botswana is quite remote and shipping would indeed be very expensive.
@@ANTHONYVLOG he, he not really most of the lipo comes with a $46.00 transport tag, only this people are insane :-) Do you know any other manufacturers selling that size ?
@@LucianComanphotography ZDF supply the cells for brands like DJI, Parrot and Autel. I’m certain there are other suppliers but I do not know of any at this time.
Let me know at 2:55 you said in my previous video. I didn't see it in your profile your previous video.
Sorry i didn’t hear that at 2:55 did you mean another time?
Don't cut the red wire😅
Literally 😅
@@ANTHONYVLOG 😂