One complete energy system. Zero tuning.

Battery, inverter, transfer switch and control come from the same source. That saves installation time, arguments about compatibility and surprises afterwards.

Which home battery suits your home?

The type of connection in your meter cupboard decides. If you do not know it by heart, we will look with you — it takes two minutes.

single-phase home

Smart home battery for single-phase homes

FlexVolt One LV. Compact and expandable per module, suited to most existing homes.

5,1 – 20,4 kWh three-phase home

Powerful home battery for three-phase homes

FlexVolt One HV. More power for larger homes, a heat pump, a charging point or a higher consumption.

7.6 – 22.7 kWh I am not sure

Let us take a look

Tell us your annual consumption and we will work out which connection you have and which set-up fits. No obligation.

reply within two working days

Retrofit

Already have solar panels? Then nothing has to go.

The FlexVolt is placed next to your existing inverter, not in its place. Your panels, your inverter and your cabling stay as they are; the battery is added as its own circuit. That is why it works alongside virtually any inverter, whatever the brand.

These are the inverter brands we come across most often in practice. It is not an exhaustive list and not a guarantee per model: your installer checks the combination at your home before anything is ordered. Brand names and logos are the property of the manufacturers concerned; mentioning them does not imply a partnership.

Your installation stays intact

No new inverter, no new string cabling, no changes to your panels. What is there stays there; the storage is added to it.

Worthwhile without solar panels too

The battery also works without generation: charging when electricity is cheap and using it when it is expensive. Solar panels are not a condition.

The installer checks the combination

The meter cupboard, the connection and the existing inverter are inspected on site. If something turns out not to be possible, you hear that BEFORE the order and not on installation day.

Five parts, one system

From generation and storage through to smart control. Everything comes from one source, so there is nothing to tune between brands that do not know each other.

  1. Inverter FlexAmp One Hybrid inverter with two MPPT trackers, available in single-phase and three-phase. 3.68 – 12 kW
  2. Storage · single-phase FlexVolt One LV All-in-one battery system for the average home. Expandable in blocks of 5.12 kWh. 5.12 – 20.4 kWh
  3. Storage · three-phase FlexVolt One HV High-voltage version for larger homes and commercial installations, with a built-in inverter. 7.6 – 22.7 kWh
  4. Backup power FlexSwitch One Automatic transfer switch. During an outage your home keeps running on the battery, without anyone noticing. < 50 ms transfer time
  5. Control FlexGrid HEMS The brain: it drives the battery, panels, charger and heat pump based on prices and forecasts. 500+ protocols

Our battery products

Two versions, the same promise

Your connection decides which of the two fits. Within that you choose the capacity — and it can still grow later.

FlexVolt One LV with three stacked battery modules under the control module

single-phase home

FlexVolt One LV

All-in-one, stackable, modules of 5.12 kWh

System energy
5.12 – 20.4 kWh
Per module
5.12 kWh
Inverter
3.68 / 5 / 6 kW
Charge current
up to 125 A
  • Cable-free designSaves up to 50% of the installation time.
  • Modular and scalableExpandable for as long as your consumption grows.
  • Lightning-fast chargingHigh current for peaks and feed-in.
  • Off-grid and backup powerUPS function, switchover within 10 ms.
  • Intelligent managementApp and web, remote diagnostics and updates.
  • IP66 with heatingWorks in an unheated garage too.
Everything about the FlexVolt One LV
FlexVolt One HV with three battery modules under the integrated inverter

three-phase home

FlexVolt One HV

All-in-one, stackable, modules of 3.8 kWh

System energy
7.6 – 22.7 kWh
Per module
3.8 kWh
Inverter
8 / 10 / 12 kW
Expandable
up to 81.6 kWh
  • Integrated inverterPCS, EMS and BMS in the same cabinet.
  • 95% usableWhat goes in comes back out.
  • Automotive safetySeven layers, with fire and leakage current detection.
  • R&D since 2014Developed to automotive standards.
  • Tier-1 LFP cellsChosen for stability, not for density.
  • Up to 81.6 kWhAdd modules, also later on.
Everything about the FlexVolt One HV

Features according to the product brochure. You put the individual capacities together in the stacker; ordering goes through your installer or the webshop.

Which set-up suits you?

Tell us your annual consumption and your connection, and we will work out which system fits and what it returns. Delivery runs through certified installers, with support from our own premises in Echt, the Netherlands — read who we are.

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