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Plug and play batteries

Developed and made in the Netherlands!

Powerful Battery Technology: Power Without Limits

Watermeln sets the standard for mobile power supply. Our battery systems are built for heavy-duty performance: from construction sites and festivals to the maritime sector. We deliver guaranteed continuity, whether you are working fully off-grid or need to reinforce your grid connection.

Smart Battery Swap: Zero Waiting Time

Don't have time for long charging sessions? With our unique swappable design, you can exchange an empty unit for a full one within 10 minutes. This keeps your project moving constantly, without any dependence on local charging infrastructure.

WM-AC5: The Solution to Grid Congestion

In addition to our swap proposition, the WM-AC5 is exceptionally well-suited for grid-connected projects. Dealing with grid congestion or limited capacity? The battery acts as a powerful buffer (peak shaving), ensuring you have the required power without overloading your grid connection.

Why Choose Watermeln Batteries?

  • 100% Continuity: A full battery on-site within 10 minutes.
  • Smart Grid Support: Instantly resolve grid congestion and peak demand.
  • Maximum Flexibility: No heavy grid connection required; charge via a fast charger or our hydrogen hubs.
  • Unmatched Efficiency: Our DC-DC technology guarantees an efficiency of > 92%.
  • Dutch-Engineered Quality: The standard for heavy-duty applications. Plug-and-play, emission-free, and always reliable.

Our products

WM-DC5

WM-DC5

Extremely Compact & Lightweight

80 kVA DC Battery Pack

500 kWh Battery Pack

DC CCS2

View specs
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WM-AC5

Robust & Scalable

250 kVA Battery Pack

240, 360 & 480 kWh

DC CCS2

View specs

Applications

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🏗️ Construction & Infrastructure

Keep electric cranes, excavators, and site huts running smoothly without the limitations of a weak grid connection. Our robust, compact, and powerful batteries are easy to transport and can be swapped effortlessly at any construction site.

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🎡 Festivals & Events

Enjoy power without the roar of diesel generators or unpleasant fumes. Our batteries effortlessly handle high peak demands during performances and keep the site whisper-quiet at night. Thanks to our swap service, we guarantee unlimited energy—even for multi-day events.

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🚢 Maritime & Ports

Decarbonize your berths or electric propulsion systems. Our battery systems are built to withstand harsh maritime conditions and deliver the high discharge currents required for marine applications. With our swap solution, vessels can quickly replenish their energy supply without being tied to the quay for hours.

Why choose Watermeln batteries?

The trusted plug-and-play quality and service you expect, plus:

  • High Energy Density: The highest capacity on the market within a compact 5ft footprint.
  • Custom Peak Power: Our systems effortlessly deliver the extra boost needed for heavy start-up currents.
  • Plug & Play: Immediately deployable and fully integrated with our proprietary My.Watermeln monitoring software.
  • Dutch-Engineered: Developed with local expertise to ensure maximum quality and premium service.

Ready for the next step in emission-free operations?

Contact
WM-DC5

WM-DC5

Mobile DC batterij pack van 500 kWh
Snel DC laden & ontladen (optioneel: AC extern)

  • Vermogen
    • Out: 80 kW DC
    • In: 240 kW DC
  • Capaciteit opties
    • 264 kWh
    • 528 kWh
  • Outputs
    • 1x DC CCS type 2
  • Operationele temperatuur
    • -15 tot 45 graden °C
  • Gewicht en afmetingen
    • Vanaf 2000 kg
    • 2.4 x 1.76x 0.94 meter
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WM-AC5

Mobile accu pack in a 10 ft container

  • Power
    • Peak 350 kW AC
    • Continuously: 200 kW AC
  • Capacity
    • Battery: 240 kWh
    • Battery: 360 kWh
    • Battery: 480 kWh
  • Output
    • 2x Powerlock 360A
    • 2x CEE 125A
    • DC CCS2 (optional)
  • Input
    • 1x CEE 125A
  • Operational temperature
    • -15 tot 45 °C
  • Weight and dimensions
    • From 5.500 kg
    • 2,99 x 2,44 x 2,59 meter (10ft container)
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Book your Watermeln generator now

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