Complete kit
  • AlphaESS Smile G3 battery 9.3S 9.3 kWh IP65
  • AlphaESS Smile G3 battery 3.8S 3.8 kWh
  • AlphaESS Smile G3 S5 single-phase hybrid inverter
  • AlphaESS Smile G3 T10 three-phase hybrid inverter
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AlphaESS

AlphaESS Smile G3 Home Battery – Complete Kit | 3.8 to 37 kWh | 3.6 to 20 kW Hybrid Inverter

AlphaESS Smile G3 Home Battery – Complete Kit | 3.8 to 37 kWh | 3.6 to 20 kW Hybrid Inverter

  • Capacity3.8 – 37.2 kWh
  • Inverter3.6 – 20 kW
€2.229,28
€2.229,28
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excl. VAT

Shipping to Austria

Business with EU VAT number0% VAT, reverse charge€2.229,28
Private customerincl. 20% VAT Austria€2.675,14
Battery
Inverter
  • Shipping to Austria · €150,00 excl. VAT (on a pallet, 39.0 kg) · all countries
  • Pick up in Rotterdam · free, by appointment, Osakastraat 17
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About this product

The AlphaESS Smile G3 kit combines a hybrid inverter with stacked battery modules of your choice: the compact 3.8S (3.8 kWh, for indoors) or the 9.3S (9.3 kWh, IP65, also for outdoors). The kit contains the inverter, the chosen battery modules, the matching energy meter and the floor plate, so the installer can get ...Read more

The AlphaESS Smile G3 kit combines a hybrid inverter with stacked battery modules of your choice: the compact 3.8S (3.8 kWh, for indoors) or the 9.3S (9.3 kWh, IP65, also for outdoors). The kit contains the inverter, the chosen battery modules, the matching energy meter and the floor plate, so the installer can get started straight away.

What you use it for

For homes with a single-phase (S3.6 / S5) or three-phase connection (T10 / T15 / T20) that want a proven installer brand with a wide power range. AlphaESS optimises for self-consumption and dynamic tariffs and, via the optional Backup Box, provides backup power for the whole house.

What makes it special

  • Choose your module: 3.8S (39 kg, IP21) or 9.3S (81 kg, IP65, heated down to -20 °C).
  • 10,000 charge cycles, aerosol fire extinguisher in every module, 10-year warranty on the inverter and battery performance.
  • Solar panels up to 200% of the inverter power: 7.4 kW (S3.6) to 40 kW (T20).
  • Single-phase inverters take up to 4 modules; three-phase up to 12 modules (expansion on request).

Backup power (optional)

With the AlphaESS BB Plus Backup Box, the house switches over to battery and solar power within 10 ms. Have the installation and connection to the electrical panel carried out by a certified installer.

Please note: 3.8S and 9.3S modules cannot be mixed in one tower. The T15 and T20 require at least two modules.

Specifications

Battery modules
3.8S (3.8 kWh, 3.65 kWh usable, IP21) or 9.3S (9.3 kWh, IP65)
Maximum capacity
4 modules on single-phase (15.2 / 37.2 kWh), up to 12 modules on three-phase
Single-phase inverter
S3.6 (3.68 kW) or S5 (5 kW), PV up to 7.4 / 10 kW, 2 MPP trackers
Three-phase inverter
T10 (10 kW, PV 20 kW) · T15 (15 kW, PV 30 kW) · T20 (20 kW, PV 40 kW), 3 MPP trackers
Battery type
LiFePO4, 96 V
Charge cycles
10,000
Backup power
optional with BB Plus Backup Box (switchover within 10 ms)
Included
inverter, battery module(s), energy meter, floor plate
Dimensions 3.8S
610 × 213 × 435 mm, 39 kg · 9.3S: 610 × 210 × 634 mm, 81 kg
Operating temperature
3.8S -10 to 50 °C · 9.3S -20 to 50 °C (heated)
Warranty
10 years inverter, 10 years battery performance

How to connect it

  • Via the Smile G3 inverterThe hybrid inverter is included in the kit: single-phase S3.6 (3.68 kW) or S5 (5 kW) with 2 MPP trackers, or three-phase T10 / T15 / T20 (10 / 15 / 20 kW) with 3 MPP trackers. Solar panels up to 200% of the inverter power.
  • By an installerThe battery is hardwired to the inverter and the electrical panel. This is done by a certified installer, usually in half a day.
  • Energy meterThe matching AlphaESS energy meter is included in the kit and goes in the electrical panel.
  • PlacementStacked modules on the supplied floor plate. 3.8S: IP21, indoors only. 9.3S: IP65 and heated, also outdoors or in a cold garage.

When 800 W and when full power?

The power to your home is determined by the chosen inverter: 3.68 or 5 kW on single-phase, 10 to 20 kW on three-phase, and by the number of modules (approx. 5 kW per 9.3S module, 1C per 3.8S module). A single-phase system covers a household's evening consumption; a three-phase system also covers a heat pump and EV charger.

Charging is done from your solar panels via the inverter, or from the grid during cheap hours. With the optional BB Plus Backup Box, the house switches over to battery and solar power within 10 ms.

  • Hard-wired via the inverter, by an installer20.000 W Also washing machine, oven or induction from the battery. Charges at 20.000 W

What this battery can do

  • Choose your module3.8S (3.8 kWh, indoors) or 9.3S (9.3 kWh, IP65, heated)
  • Inverter 3.6 to 20 kWSingle-phase or three-phase, up to 40 kW of solar panels
  • Up to 4 or 12 modulesSingle-phase up to 37.2 kWh, three-phase further on request
  • Meter and floor plate includedComplete straight away for the installer
  • 10,000 charge cyclesLiFePO4, 96 V
  • Aerosol fire extinguisherIn every module
  • Backup power possibleBB Plus Backup Box, switchover within 10 ms
  • 10-year warrantyOn inverter and battery performance

Questions about this product

Does this system need to be connected by an installer?
Yes. A fixed home battery is connected to your electrical panel, and that is a job for a certified installer. In the Netherlands and Belgium, you can request an installation quote from us; you will then receive a fixed date and the name of the installer in advance.
Does this work with my existing solar panels?
In virtually all cases, yes. Whether your current inverter can stay or needs to be replaced differs per system. Send us a photo of your electrical panel and inverter and we will check it for you free of charge.
How much energy does this system store?
This system is modular: with a single-phase connection you can link up to 4 modules, with a three-phase connection up to 12 modules. Depending on the configuration you choose, that comes to 15.2 to 37.2 kWh. Call or WhatsApp us on +31 10 261 33 86 and we will work out what suits your consumption.
Does it work during a power cut?
Yes, with the optional BB Plus Backup Box added; it switches over within 10 ms. Devices behind the box keep running if the grid fails. Without that box you have no backup power.
How long does the battery last?
Lifespan of this model: 10,000 charge cycles. The cells are LiFePO4 (96 V). The manufacturer's warranty is 10 years.
How much space do I need?
The 3.8S module is 610 × 213 × 435 mm and weighs 39 kg; the 9.3S module is 610 × 210 × 634 mm and weighs 81 kg. Choose a flat, dry spot. Not sure whether it will fit? Send us a photo via +31 10 261 33 86.
How much warranty do I get?
This product comes with a 10-year warranty on the inverter and 10 years on battery performance. Multi-Solar is an authorised dealer, so warranty claims are handled by us in Rotterdam rather than through a foreign importer.
When will my order be delivered?
Products in stock are shipped within 1 working day from our own warehouse in Rotterdam; for the Netherlands and Belgium, allow for delivery within 3 to 5 working days. Collection (pick-up) at Osakastraat 17 in Rotterdam is possible by appointment, seven days a week.

  • Manufacturer's warranty

    The full manufacturer's warranty applies. For a claim, mail info@multi-solar.nl with your order number.

  • Shipped from Rotterdam

    As a parcel or on a pallet, depending on the weight. See the costs per country.

  • Pick-up in Rotterdam

    Free, by appointment, at Osakastraat 17, 3047 AK Rotterdam.