REX Power

More energy. Half the weight.

Tide, Anchor and Harbour share one modular platform. Tide and Anchor use high-density cells, which makes a unit up to half the weight of a comparable LFP power station. Harbour stays deliberately LFP: heavier, but with more than 4000 cycles and expandable to 10.2 kWh.

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Render: REX Harbour 2800 power station
Series

Choose your size, not your compromise.

Tide and Anchor share the same modular build on high-density cells. Harbour stays LFP: heavier, but with the longest life and the most expansion.

  • REX Tide 400

    Compact series · Tide 400 & 800

    REX Tide

    For the road, the boat, the building site and as a silent backup for a workplace. Fits in one hand, delivers 600 to 1200 W.

    389 – 777 Wh
    Per unit
    600 – 1200 W
    Continuous · double peak
    3.6 – 5.6 kg
    Portable
    95 min
    To 80 % on mains
    Specifications
  • REX Anchor 1500

    Work series · Anchor 1500 & 3000

    REX Anchor

    For workshops, events and backup power. Runs a fridge, a pump and power tools without effort, and grows with external modules.

    1.5 – 3.1 kWh
    Per unit
    2000 – 3000 W
    Continuous · double peak
    up to 6.1 kWh
    With external Core A modules
    < 10 ms
    UPS switchover
    Specifications
  • REX Harbour 2800

    Backup series · Harbour 2800

    REX Harbour

    For mainly stationary use: backup in the meter cupboard, at the business premises or on a pitch. Expandable to 10.2 kWh.

    2048 Wh
    Expandable to 10,240 Wh
    2800 W
    Continuous · 3600 W peak
    > 4000
    Cycles · LiFePO4
    55 min
    To 80 % on mains
    Specifications
Modular platform

Two cell modules, five products.

Everything rests on two building blocks. Core T sits in the Tide series, Core A in the Anchor series. One module or two decides the model; external modules expand the Anchor further. The same BMS, the same app, the same service.

Harbour Extra 2048 expansion module

  • Core T · compact

    The building block of the Tide series. One module makes the Tide 400, two the Tide 800.

  • Core A · power

    The building block of the Anchor series, at 51.8 V system voltage. Expandable externally to 6.1 kWh.

  • LFP platform

    The Harbour runs on LiFePO4 for more than 4000 cycles and grows with Harbour Extra modules to 10.2 kWh.

  • One app, one service

    REX Connect over Bluetooth and Wi-Fi for every model, with the same service contracts and spare parts.

Compare

All models side by side.

Tide 400Tide 800Anchor 1500Anchor 3000Harbour 2800
Code RT-400RT-800RA-1500RA-3000RH-2800
Capacity 389 Wh777 Wh1528 Wh3056 Wh2048 Wh
Nominal voltage 25.9 V25.9 V51.8 V51.8 V51.2 V
Configuration 7S1P · 1 × Core T7S2P · 2 × Core T14S1P · 1 × Core A14S2P · 2 × Core ALFP platform
Chemistry Li-ion pouchLi-ion pouchLi-ion pouchLi-ion pouchLiFePO4
Output power 600 W · 1200 W peak1200 W · 2400 W peak2000 W · 4000 W peak3000 W · 6000 W peak2800 W · 3600 W peak
AC outlets 23463
USB-C 100 W + 60 W140 W + 100 W2 × 140 W2 × 140 W2 × 140 W + 2 × 20 W
AC input 200 W400 W800 W1500 W1800 W
Solar input 200 W · 12–48 V400 W · 12–48 V800 W · 12–100 V1500 W · 12–100 V1200 W · 11.5–55 V
Charge to 80 % 95 min95 min95 min100 min55 min
Weight 3.6 kg5.6 kg11.5 kg17.5 kg21.6 kg
Energy density 108 Wh/kg139 Wh/kg133 Wh/kg175 Wh/kg95 Wh/kg
Dimensions (mm) 245 × 160 × 195300 × 190 × 220400 × 210 × 285480 × 240 × 320398 × 280 × 315
Expandable NoNoTo 4.6 kWhTo 6.1 kWhTo 10,240 Wh
Cycle life > 1000 (tbc)> 1000 (tbc)> 1000 (tbc)> 1000 (tbc)> 4000

Preliminary specifications; values marked (tbc) are still to be confirmed. Measured at 25 °C. Harbour Extra 2048 is a 2048 Wh expansion module weighing 16.4 kg.

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Applications

Where these units do their work.

Runtime is arithmetic: usable energy divided by consumption. A 60 W load on a Tide 800 is roughly ten hours.

  • Recommended: Tide 800

    On board

    Where REX began. Fridge, navigation and laptop on board without shore power or a running engine. Light enough to take into the tender. Worked example: fridge plus navigation, 60 W.

  • Recommended: Anchor 1500

    Service van & building site

    Charge tool batteries, laptop and lights in the van without running the engine. Replaces the generator indoors, where emissions and noise are not allowed. Worked example: two tool chargers, 250 W.

  • Recommended: Anchor 1500

    Home & small business backup

    As a UPS between the grid and the heating pump, fridge, router and solar inverter. On a power cut it switches over in under 10 ms, then recharges on solar. Worked example: heating pump, fridge and router, 180 W.

Made in Europe

What comes with every unit.

  • Made in the Netherlands

    Design, specification and final assembly in the Netherlands; sub-components under REX specification.

  • CE · UN 38.3 · IEC 62619

    Held or in progress, recorded per model in the technical file.

  • Battery passport ready

    Documentation prepared for the EU Battery Regulation.

  • Service and spare parts

    Service contracts, spare parts and one point of contact for the whole range.

Start a project

Tell us what power you need. We'll specify the system.

B2B only. A response from our team within two working days; demo units available.

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