• Cars & Vehicles
Cars & Vehicles
Browse by
  • Cars
  • Motorbikes & Scooters
  • Vans
  • Campervans & Motorhomes
  • Caravans
  • Trucks
Discover more in our guides
For Sale
Browse by
Services
Browse by
  • Business & Office
  • Childcare
  • Clothing
  • Computers & Telecoms
  • Entertainment
Property
Browse by
  • For Sale
  • To Rent
  • To Share
Pets
Browse by
  • Birds
  • Cats
  • Dogs
Jobs
Browse by
Community
Browse by
  • Artists & Theatres
  • Classes
  • Events, Gigs & Nightlife

Contact Alg

Alg

Posting for 2+ years

Momentum U2 2.5kW electric outboard for boat tenders

Lymington, Hampshire

£2,450

Email address verified

£Custom offer

Description

- replaces your smelly loud 3hp, 4hp, 5hp petrol outboards
- FREE DELIVERY ANYWHERE IN THE UK
- introductory price of £2,450 being held until 1st March 2026 when it goes up to £2,550

The Momentum U2 2.5kW electric outboard is ultra portable being made up of 3 lightweight components:

- 9kg 2.5kW motor with 2.5 x the power of similar electric outboards
- 8kg 1.4kWh battery - the higher capacity gives you more range
- 2kg transom bracket - no need to tighten the usually fiddly clamps

Available in both long and short shafts to suit all requirements - see images for dimensions.

Contact us now to have a demonstration of this fantastic motor - we are based near Lymington and have various test boats.

You can also find some great videos on YouTube showing it in action.

SUMMARY

The extra power means this motor can cope with all sorts of weather and water conditions for you on your tender, fishing boat, small workboat and also as an auxiliary for larger ribs and sail boats.

It is also proving popular with sailboat racers as it is so light and simple to take on and off - use it to get out of the harbour, set sail then simply slide the battery off the motor, lift the motor off the bracket and stow both away. Leaving the transom bracket in place means there is nothing to fiddle with when you need to deploy it!

The throttle has a simple eco mode limiting the power to 600w (approximately quarter power) which is more than is needed most of the time anyway. However, if there are more people and kit on your boat or you are going against wind and tide, simply depress the button on the tiller to access full power.

The same button enables you to twist the throttle the other way to access reverse - it really is incredibly simple and intuitive to use.

The ultra bright, high contrast and clear display can show your speed in knots, mph, kph or will show you the time remaining in the battery.

The motor simply slots into a self locking dovetail joint on the transom bracket from inside the boat - no leaning out and over the back so it is much safer and feels much better!

Lock the motor in horizontal, then without having the battery over the water, rest it on the motor chassis and simply slide until it locks in place.

Now release the transom bracket lock to lower the motor down to the desired angle - there are no tricky pins to slide in and out, just a lovely simple lever to release - attach the kill cord, twist the throttle and head off.

There are no temperamental starting problems, no awkward rotating the motor for reverse, just simple and intuitive allowing you to enjoy your boating adventures more than ever.

We believe that this is the best electric outboard motor on the market in its class:

- quiet
- high power compared to most alternatives
- incredibly light so easy to transfer to your larger boat from your tender
- compact so easy to store onboard in any lockers
- fantastic ease of use
- brilliantly engineered
- competitively priced

SAFETY

The fully integrated CAN bus interface between the outboard motor, battery and throttle ensure safe and seamless operation.

The magnetic kill switch, custom IP-rated waterproof connectors and battery give you peace of mind in the worst of conditions.

The multi function tiller with full power and reverse lockouts make it very easy for first-time users.


HOW DO I COMPARE IT WITH PETROL OUTBOARDS?

Unfortunately many electric outboard manufacturers have overstated the performance of their electric outboards claiming that a 1kW motor is the equivalent of 3-4hp which on the water is clearly not true.

They do this as they compare the power using a static bollard pull test - ie tie the tender to a quay and see how many kg of thrust it produces. Electric outboard motors develop full torque immediately unlike petrol outboards so are incredibly responsive at low revs. This gives them a high pulling power but they tend to run out of puff at higher speeds.

This unfortunately means that many people have been disappointed when comparing a 1kW electric outboard directly with their previous petrol outboards.

The Momentum U2 is designed to address these issues being a real world replacement for your small petrol outboard engine, capable of powering much larger boats at displacement speeds and achieving planing speeds on light tenders.

Really, we just need to be aware that electric outboards simply work differently to petrol outboards:

- much, much quieter
- compact foot print
- no carrying fuel around in your car
- no spills of oil or fuel into the water
- they just start!
- no servicing
- reduced ongoing running costs especially if you have solar panel at home

PERFORMANCE

EZraft 360
- 3 knots 18.3 hrs 55 nautical miles
- 4 knots 3.3 hrs 13 nautical miles
- 5 knots 1.5 hrs 7 nautical miles
- 9 knots 0.6 hrs 6 nautical miles

Takacat T300LX
- 3 knots 9.7 hrs 29 nautical miles
- 4 knots 3.0 hrs 12 nautical miles
- 5 knots 1.6 hrs 8 nautical miles
- 8 knots 0.8 hrs 6 nautical miles

Highfield Classic 310
- 3 knots 7.7 hrs 23 nautical miles
- 4 knots 2.3 hrs 9 nautical miles
- 5 knots 1.0 hrs 5 nautical miles
- 6 knots 0.7 hrs 4 nautical miles

All of these tested with a single man onboard in calm coastal waters.

WHAT'S IN THE BOX?

Well it actually comes in three boxes!

- Box 1: Momentum U2 chassis, transom bracket, prop tool and two kill cords
- Box 2: Momentum U2 battery
- Box 3: Momentum U2 standard 3 pin plug charger

WHAT OPTIONS ARE THERE?

- Apart from the standard Long and Short shaft lengths, we can also make special order lengths and we have an XS for example for Swallow Yachts and their amazing Bay Raider 21 and 23 boats.
- A remote throttle can be used with the U2 in either side or top mount position
- Remote steering can also be used with the U2 with standard cable controls
- DC charger available soon
- Spare transom bracket so it can be quickly mounted on multiple boats
- External battery cable to use with any suitable 48v battery

SPECIFICATIONS:

- 2.5kW motor. This is a true replacement for your 3-4hp petrol outboards unlike the 1kW motors out there claiming to be 3hp replacements
- 1.4kWh battery. Gives you more range
- Magnetic kill cord for safety

AVAILABILITY:

New stock is landing mid March as we are currently sold out following the amazingly successful launch at Southampton International Boat Show in September 2025.

USE CASES:

Designed to be used with:
- Tenders
- Dinghies
- Fishing boats
- Small workboats
- Auxiliary motor for ribs
- Auxiliary on larger sailboats

Also if you want the lightest robust tenders on the market, take a look at our amazing EZraft Q series of tenders:

- Q240 weighs only 12kg including oars and seats
- Q270 weighs only 13kg including oars and seats
- Q300 weighs only 14kg including oars and seats
- Q330 weighs only 16kg including oars and seats
- Q360 weighs only 17kg including oars and seats

They come complete with rechargeable electric pump so are zero effort to inflate!

They pack down extremely small with everything still attached - just amazing!

#GotStuffGetCash

Posted: 15 hours ago

Ad ID: 1508761449

Details

Condition: New
Colour: Blue
For Sale