©2013 DJI Innovations. All Rights Reserved. 1

DJI E300 Multirotor Propulsion System 

User Manual V 1.00 

2013.11.20 Revision 

 

 

 

 

 

Disclaimer 

Read this disclaimer carefully before using this product. By using this product, you hereby agree to this 

disclaimer and signify that you have read them fully. DJI Innovations assumes no liability for damage(s) or 

injuries incurred directly or indirectly from the use of this product.

DJI is the registered trademark of DJI Innovations. Names of product, brand, etc., appearing in this manual are 

trademarks or registered trademarks of their respective owner companies. This product and manual are 

copyrighted by DJI Innovations with all rights reserved. No part of this product or manual shall be reproduced 

in any form without the prior written consent or authorization of DJI Innovations. No patent liability is assumed 

with respect to the use of the product or information contained herein.

Cautions 

When flying, the fast rotating propellers will cause serious damage and injury. Therefore, please fly with a high 

safety consciousness.

1. Keep flying multi-rotor away from obstacles, human beings, high-voltage lines and so on.

2. Do not get close to or touch the working motors and propellers, which will cause serious injury.

3. Make sure there is no short or open circuit.

4. Check that the propellers and the motors are installed correctly and firmly before flight.

5. Check whether all parts of multi-rotor are in good condition before flight. Do not fly with old or broken 

parts. 

6. Use DJI parts as much as possible.

If you have any problem you cannot solve, please contact your dealer or DJI customer service. 
©2013 DJI Innovations. All Rights Reserved. 2

In the Box 

Motor(Clock-wise rotation) Motor(Counter clock-wise rotation) Propeller Pair 

ESC Accessories Pack 

 

Power Hub, 

Screws ( M2.5*Φ5*1.3*1) , Screws ( M3*Φ4.9*6.8), Screws ( M3*Φ5.5*4.5), 

Wrench for propeller fix, 2.0mm hexagonal wrench, Double side tape, etc. 

Tools Needed 

Tool Function 

Electric Soldering Iron & Soldering Tin Connects the ESCs’ power cables to the power hub.

Soldering the ESC 

1. Please solder the ESC to the power pads on the power hub as the figure shows. Make sure the welding

spot is firmly attached on the power pads and no short circuit. Do not damage the protector of the red 

cable to avoid short circuit.

2. Connect the signal cable to your controller.

3. Connect the motor to the ESC. Make sure the rotation direction of each motor is the same as the way of 

defined rotation direction. If not, switch any of two cables that connecting the motor and the ESC to 

change its rotation direction. 

E300 To the controller

The outer power pads are for the GND cables, and the inner power pads are for the power cables. Make sure to solder them correctly. Try to make the cables firmly soldered on the power hub with suited length (Should not leave any outside the power hub), and outward-facing.

Make sure there is no short or open circuit.

It is recommended to solder a power connector on the power hub.
©2013 DJI Innovations. All Rights Reserved. 3

Assembling the Propellers 

Propeller Silver nut (9443) Black nut (9443 R) 

Diagram

Assembly Location

Motor(Counter clock-wise rotation) Motor(Clock-wise rotation)

Fastening/Un-fastening 

Instructions

Lock: Tighten the propeller in this direction.

Unlock: Remove the propeller in this direction.

1. Tighten the propellers by following the instructions. Propellers are self tightening during flight.

2. Keep the motor deadlocked in place and remove the propeller according to the instructions.

DO NOT use any thread locker on the threads.

Assembling the Motors 

Assemble the motor to a frame arm according to the size of the assembly hole.

(1) The screw hole is M3 with the depth of 3mm. Assemble them with appropriate screws.

(2) Oversized screw may damage the motor.

4 x M3 -6H, screw depth is 3mm
©2013 DJI Innovations. All Rights Reserved. 4

ESC Sound Description 

Normal Description 

♪1234567 Ready.

Abnormal Description 

BBBBBB... Throttle stick is not at bottom.

B--------B--------B... Input signal is abnormal.

BB---BB---BB---BB... Input voltage is abnormal

You can know the working status according to the sound of the ESC.

Specifications 

Working Temperature -5°C ~ 40°C

ESC 

Current 15A OPTO

Signal Frequency 30Hz~450Hz

Voltage 11.1V~14.8V

Battery 3S~4S LiPo

Motor 

Stator Size 22×12mm

KV 920rpm/V

Weight 50g

Propeller 

Diameter / Thread Pitch 24x11cm

Used Together with DJI Product 

Product list and assembly diagram 

 

Used Together with PHANTOM 2 VISION 

DJI F450 

DJI F550

PHANTOM

PHANTOM 2 VISION