Princes FPV Drones Project (August, 2025)

I finally found a 3D printed case for the featured BMS board that was removed from a dead Original DJI battery. No changes were made to the board. I discovered that, since it is a version one model, it is compatible with all 6s batteries and not only that, it powers on drone as well as allows me to take off! I am looking to obtain the STL files, as they are currently not publicly available. (On going)

DJI FPV Drone Lipo battery Upgrade (6-24-2025)

DJI Original battery 286 grams

Weighs only 79 grams!

Weighs only 290 grams with SMC 1400 Mah battery

Fits perfectly!

Side view

Top view

Socket View

Endurance flight – BMS DJI FPV Drone – 1400mAh SMC battery (6-28-2025)

Endurance test 12 minutes

32% battery left

Normal mode

1400mAh SMC battery

DJI Battery: 280 grams

DJI Battery cells: 242 grams

The modified cage: 80 grams

Stock DJI Drone with my set up with 1400mAh battery: 788 grams

Stock DJI Drone with DJI Battery: 790 grams

Only 2 grams heavier then the stock DJI FPV Drone and DJI battery set up!

Resulting in 12 minutes of flight time, same as the stock drone with DJI battery!

Endurance flight – BMS DJI FPV Drone – 1400mAh SMC battery (6-28-2025)

Testing DJI FPV Drone with Genuine DJI cells (7-05-2025)

Testing DJI FPV STOCK Drone with Genuine DJI cells in my new system!

DJI Battery: 280 grams

DJI Battery cells: 242 grams

The modified cage: 80 grams

My set up with DJI cells: 323 grams

Total: 40 grams heavier then the Original DJI battery

11 minutes 20% battery left on the DJI cells

Over all voltage 21.55 volts

Cell voltage: 3.6 Normal mode

DJI FPV Drone 2000mAh original battery cells in modified case.

Forced landing

Testing DJI FPV Drone with Genuine DJI cells (7-05-2025)

DJI FPV STOCK Drone SMC 1400Mah (7-13-2025)

13 minutes

20% battery

Over all voltage 20.55 volts

Cell voltage: 3.2

Normal mode DJI FPV Drone

1400mAh SMC Battery Battery

Forced landing

CONCLUSION: This set up provides the SAME battery time as the stock DJI battery!

DJI FPV STOCK Drone SMC 1400Mah (7-13-2025)

DJI FPV Drone battery mod conclusion (7-26-2025)

DJI FPV Drone battery mod conclusion

What does locked BMS board mean (7-27-2025)

How to find and test a BMS board like I have.

How to dismantle DJI FPV Drone battery in under 5 minutes (7-29-2025)

So in conclusion this is the best method of running non-DJI batteries for your DJI FPV drone.

This research has now reached its conclusion and thus is completed as of August 2025.

The next phase is to put this solution into production and make it available to the FPV Community.

You are welcome to place your comments in the comments section of the videos.