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Torqedoo Ultralight 403 AC (915Wh)
Torqedoo Ultralight 403 AC (915Wh)
Torqedoo Ultralight 403 AC (915Wh)
Torqedoo Ultralight 403 AC (915Wh)
Torqedoo Ultralight 403 AC (915Wh)
Torqedoo Ultralight 403 AC (915Wh)

Torqedoo Ultralight 403 AC (915Wh)

  • Weight as low as 11.0 kg complete with battery
  • 1 HP equivalent
  • With 915 Wh high-performance lithium battery
  • Comes including charger, throttle, onboard computer, GPS-based range calculation and emergency magnetic kill switch
  • New angler mount with tilt and park mechanism, plus simple integration with the kayak’s steering unit.
  • Easy to mount on fishing kayaks
  • Range of up to 100 km

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€2,204.10 €2,449.00 -10%
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Torqeedo’s lightest outboard, the Ultralight 403 AC, gets you to your favorite spot faster, and lets you stay there longer. It offers reliable performance, an innovative new angler mount and all the high-tech features of a genuine Torqeedo system: GPS built-in, real-time range and runtime display, solar charging and the latest lithium battery technology.

Our extremely light Ultralight 403 AC fits on all popular types of kayak and canoes, and there are special models for special requirements.

Ultralight 403 AC – Benefits:

  • Weight including battery: 11.0 kg
  • Range of up to 100 km
  • Easy to mount on fishing kayaks
  • Completely waterproof (IP67)
  • Superb usability with a wealth of smart features


Ultralight 403 AC with Integrated Battery (915 WH / 29.6 V / 31 Ah)



Speed in km/h*Range in km*Running time in hours
Half throttle6.071.011:50
Full throttle9.321.702:20

* Dependent on factors such as type of boat, load, propeller and ambient conditions. Figures for speed and range are indicative only and are not a guarantee of performance.
Example: Fishing kayak Hobie Mirage Revolution (4.1 m / 26.3 kg)

Information on range and speed

For a displacement boat making way through the water, the required propulsive power increases in proportion to the cube of the speed. This means that if you want to double your speed, you need eight times as much power.

And vice-versa, a small reduction in speed is enough to increase the achievable range substantially.

The Torqeedo Ultralight's on-board computer calculates the remaining range constantly, by linking the motor's consumption data with the charging level of the batteries, and the speed over the ground from the GPS. This allows you to read the remaining range in real time from the motor display or the smartphone app TorqTrac.


Technical Data Ultralight



Ultralight 403 AC
Input power in watts400
Propulsive power in watts180
Comparable petrol outboards (propulsive power)1 HP
Comparable petrol outboards (thrust)2 HP
Maximum overall efficiency in %45
Static thrust in lbs*33
Integrated battery915 Wh Li-Ion
Nominal voltage29.6
Final charging voltage33.6
Total weight in kg11.0
Motor weight without battery in kg5.0
Weight of integrated battery6.0
Shaft length in cm48
Standard propeller
(v = speed in km/h at p = power in watts)
Alternative propeller options-
Propeller Guide
Maximum propeller speed in rpm1,200
SteeringConnects to kayak steering, lockable
Tilting deviceManual, with impact protection
Trim deviceManual, 4-step
Stepless forward/reverse driveYes
Integrated on-board computerYes
* Torqeedo static thrust measurement is based on internationally accepted ISO standards. Static thrust figures for conventional trolling motors are typically measured differently, which results in higher values. To compare Torqeedo static thrust data with conventional trolling motors, add approximately 50% to the Torqeedo static thrust values.



Technical information according to COMMISSION REGULATION (EU) 2019/1782:


Technical information:
Power SupplyEDAC EA11012E-240
Input Voltage100 - 240 VAC
Input Frequency50 - 60 Hz
Output Voltage24 VDC
Output Current4,16 A
Output Power100 W
Average operational efficiency≥ 89 % at 25 %, 50 %, 75 %, 100 % output power
Efficiency at light loads (10 %)≥ 79 %
No Load Power consumption≤ 0,15 Wat at 0 % output power

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