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Welsh DJI owner

scrapman

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Joined
Jul 31, 2025
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Age
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Location
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Hi to all. I am new here and will have a lot of questions.
I own a Mavic 2 pro and now that I am retired, I intend to use it more. Unfortunately the backup battery I bought for it has gone into hibernation mode. Can anyone point me in the direction of, or indeed send me the DJI Battery Killer software? I have the PC card and cables on order so need the file to complete the set and start to recover the battery.
Thanks,
Scrapman.
 
Helo! Croeso i'r fforwm, o Hauptmann yng Ngogledd Texas!
DJI Mavic 2 Pro batteries have a hibernation feature to protect themselves during long periods of inactivity. When a battery is left unused for an extended period, it will automatically discharge to a low voltage level and enter hibernation mode to prevent damage from over-discharge. To wake up a hibernating battery, you need to recharge it for at least an hour.
 
Hello from the Crossroads of America scrapman.

Nice to meet you. 🤝

Hopefully you'll get the problem resolved and flying soon.

Welcome to the Forum. :cool:

.
 
Helo! Croeso i'r fforwm, o Hauptmann yng Ngogledd Texas!
DJI Mavic 2 Pro batteries have a hibernation feature to protect themselves during long periods of inactivity. When a battery is left unused for an extended period, it will automatically discharge to a low voltage level and enter hibernation mode to prevent damage from over-discharge. To wake up a hibernating battery, you need to recharge it for at least an hour.
I am impressed with your Welsh language skills - you also have the nasal mutation correct - you put a "g" after "yn" because the following word starts with a "g".
I only speak "schoolboy" Welsh as, although my grandparents ( and indeed my wife) were/are Welsh speakers, I was educated in the English language.

I have tried recharging but for only a few minutes. I will try to babysit it charging g for an hour as you suggest, although a proven method is to use the DJI Battery Killer software that is out there...somewhere! :)
 
Greetings from Birmingham Alabama
 


Welcome from the Hampton Roads area of Virginia, USA. We have a Member's Map in the Upper Right of the Title Bar. Click on "Members" and then Click on "Member's Map…" Check it out and you might find some new flying friends.


Since you live in the UK, there are specific laws and rules for you to follow, please check to ensure these are current.


Even if you have flown Drones before, here is some Good Old Fashion Advice…

You paid a lot of money for that Drone, put your phone number on it. If your drone gets lost or stuck in a tree and it finally comes down when you are not around, give the finders an opportunity to contact you so it can be returned.

Now, for the Fun Part, But do not let the excitement of the moment get the best of you. When you are going out to fly, do it slowly and deliberately. Get used to a set procedure and even practice it.

There are so many things I could write but these are the highlights that I feel need mentioning.

Plug in your phone/tablet into your controller; turn on the Controller and DJI Fly App (if it does not start on its own…). On the Drone, open the front legs, then open the back legs, and then remove the Gimbal Cover.

The Gimbal is the most delicate item on the Drone and banging or bumping can damage it. I also fastened a short "Remove Before Flight" ribbon to the cover so it's more noticeable and I do not forget to remove it…

Turn on the drone and watch it come to "life." Watching the Gimbal go through its self-check is almost like watching a puppy or kitten opening its eyes for the first time…

Place the drone down (preferably on a Landing Pad) while it finishes its self-test (collecting satellites, etc…).

Check your battery status (Phone, Drone, and Controller), check the Signal Strength, by now the Controller should have reported it updated the Home Point.

Lift off, 6 feet (2-meters) or so, hover a bit, check the controls (move the drone a bit forward, back, left, right, yaw left and right). By now, your Controller will probably report again, "Home point Updated."

If you go out in a rush and race thru your start up and take off before the drone has finished it prep, it may update its Home Point over that pond or that old tree you are flying over and in your excitement, you'll fly the drone long past it Low Battery point and when it engages Return to Home and lands in the pond or in a tree; it will be all on you…

Now go have fun, learn to fly the drone by sight before you try to fly it out a distance depending on the video feed, FPV.

I would also advise you to use YouTube and watch a lot of the Videos on flying and setting up the Drone. When it is too dark, too cold, or too wet, you can "fly it vicariously" through YouTube. Also watch some of the Blooper Drone Videos and learn how not to fly your "New Baby."

Below is the link to all of the downloads offered by DJI for the Mavic 2, including the User Manual.

After you read the Manual, read it again, you will be surprised what you missed the first time and you will be better prepared for that first "scary moment…"


Fly On and Fly Safe…
 
Welcome to the forum from the beautiful woods of Maine, USA!
As you can see, there’s many knowledgeable members who are willing to help you with any questions you might have. Search the forums using keywords and if you don’t find an answer, post your questions and I’m sure you’ll get a quick response!
Fly safe, enjoy and stay safe!
 
Welcome from the Hampton Roads area of Virginia, USA. We have a Member's Map in the Upper Right of the Title Bar. Click on "Members" and then Click on "Member's Map…" Check it out and you might find some new flying friends.


Since you live in the UK, there are specific laws and rules for you to follow, please check to ensure these are current.


Even if you have flown Drones before, here is some Good Old Fashion Advice…

You paid a lot of money for that Drone, put your phone number on it. If your drone gets lost or stuck in a tree and it finally comes down when you are not around, give the finders an opportunity to contact you so it can be returned.

Now, for the Fun Part, But do not let the excitement of the moment get the best of you. When you are going out to fly, do it slowly and deliberately. Get used to a set procedure and even practice it.

There are so many things I could write but these are the highlights that I feel need mentioning.

Plug in your phone/tablet into your controller; turn on the Controller and DJI Fly App (if it does not start on its own…). On the Drone, open the front legs, then open the back legs, and then remove the Gimbal Cover.

The Gimbal is the most delicate item on the Drone and banging or bumping can damage it. I also fastened a short "Remove Before Flight" ribbon to the cover so it's more noticeable and I do not forget to remove it…

Turn on the drone and watch it come to "life." Watching the Gimbal go through its self-check is almost like watching a puppy or kitten opening its eyes for the first time…

Place the drone down (preferably on a Landing Pad) while it finishes its self-test (collecting satellites, etc…).

Check your battery status (Phone, Drone, and Controller), check the Signal Strength, by now the Controller should have reported it updated the Home Point.

Lift off, 6 feet (2-meters) or so, hover a bit, check the controls (move the drone a bit forward, back, left, right, yaw left and right). By now, your Controller will probably report again, "Home point Updated."

If you go out in a rush and race thru your start up and take off before the drone has finished it prep, it may update its Home Point over that pond or that old tree you are flying over and in your excitement, you'll fly the drone long past it Low Battery point and when it engages Return to Home and lands in the pond or in a tree; it will be all on you…

Now go have fun, learn to fly the drone by sight before you try to fly it out a distance depending on the video feed, FPV.

I would also advise you to use YouTube and watch a lot of the Videos on flying and setting up the Drone. When it is too dark, too cold, or too wet, you can "fly it vicariously" through YouTube. Also watch some of the Blooper Drone Videos and learn how not to fly your "New Baby."

Below is the link to all of the downloads offered by DJI for the Mavic 2, including the User Manual.

After you read the Manual, read it again, you will be surprised what you missed the first time and you will be better prepared for that first "scary moment…"


Fly On and Fly Safe…
Pretty good advice. We have to register our drones over here to stay legal and part of this is passing a test about safe operation. We also have to pay a fee. :(
I also fly RC Gliders and aircraft and similar rules apply.
Scrapman.
 
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Greetings from Chicago the Windy City, welcome to the forum.
FLY SAFE & FLY SMART
 
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HI guys, thanks for all the responses. As an update, I found the DJI Battery Killer software on the Internet and installed it. The cables came and I attempted to recover the battery from it's hibernated state. Unfortunately I found that the battery voltage had fallen below the prescribed limit and wouldn't "unseal". The software recognised the battery but couldn't read it.
I turned to the Internet again and was shown that the only way to recover from this is to prise the battery shell apart and charge the cells individually at a low amperage - in my case 0.3A. I have chargers that can do this and charge cells on the advised NiCad setting. It was a bit of a faff but managed it eventually. I recharged the four cells to about 3.7A individually which took up to 40min per cell. I then put the battery pack back in its shell and now the software was able to read and reset the battery. I am now in the process of fully charging it on the DJI charger. It recommends hovering the Mavic with the recovered battery until it draws down to minimum then charge again. This I hope to do tomorrow.
Thanks for all the advice.
Scrapman.
 

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