What is the MB-2 battery?

The Momentum MB-2 is a compact 1.4kWh lithium battery (48V) designed for the U2 electric outboard motor. It features a waterproof design and quick-swap mechanism.

Is the MB-2 waterproof?

Yes, the MB-2 battery is fully waterproof, making it safe for marine environments and easy to handle on the water.

How do I swap the MB-2 battery?

The MB-2 features a quick-swap design that allows you to easily replace the battery in seconds, ensuring minimal downtime during your boating activities.

Momentum MB-21.4 kWh, 48 V lithium battery for the Momentum U2 electric outboard

1.4 kWh · 48 V · 8 kg

Find a dealer See the specifications

1.4 kWhCapacity

48 VVoltage

9.7 hEco range

8 kgWeight

The battery

The U2's energy,
eight kilos lifted with one hand.

The MB-2 is a compact, lightweight 1.4 kWh lithium-ion battery designed specifically for the Momentum U2 electric outboard motor. At 48 volts it delivers up to 9.7 hours of running time in eco mode. Its waterproof, removable quick-swap design allows a fast change with no cable. The built-in onboard computer displays power and GPS range in real time.

Quick-swap

It changes
in seconds.

The MB-2 clips straight onto the U2: no cable to run, no locker to find. Eight kilos, lifted out by hand.

Quick-swap system: no cable to connect
Waterproof, removable design
8 kg — carried by hand
Built-in onboard computer: power and GPS range in real time

MB-2 battery clipped onto the U2 electric outboard

Screen

Everything reads
in full sunlight.

Our integrated high-contrast color screen gives you key information at a glance, even in direct sunlight.

MB-2 battery colour screen, readable out at sea

Range

Up to 9.7 hours
in eco mode.

At 48 volts the MB-2 gives the U2 up to 9.7 hours of running time in eco mode. A second pack swaps in seconds: time on the water now depends only on how many batteries you carry.