Alpha ESS SMILE i3 energy storage system – home storage for private households


SMILE-i3 modular energy storage system

All-in-one storage system

- Modular design
- Integrated battery
- Simple installation
- Low maintenance effort
- Multilevel EMS and BMS
- AlphaCloud for 24/7 monitoring
- 5-year all-risk insurance optional

Battery inverter
- UPS capability
- WiFi

- Li-iron phosphate cells
- max. Charging current 1C
- Up to 25 years performance guarantee

Energiespeichersystem Alpha EES SMILE-i3

Max. AC-Nennleistung3.000 W
Max. AC-Scheinleistung3.000 VA
Max. AC-Eingangsleistung3.000 W
Nutzbare Kapazität2,75 kWh
ZelltechnologieLFP (LiFePO4), kobaltfrei
Abmessung (B x T x H)610 x 236 x 625 mm
Gewicht45 kg
Umgebungstemperatur-10°C bis 50°C, optional 10°C bis 50°C ***
Produktgarantie5 Jahre Wechselrichter, 10 Jahre Akku
Leistungsgarantie Akku15 Jahre* linear, auf 25 Jahre erweiterbar

Wechselrichter Alpha EES SMILE-i3

Max. AC-Eingangsstrom13 A
AC-Nenneingangsspannung230 V
Batteriespannungsbereich40-58 V
Max. Lade-/Entladestrom60 A
Max. Lade-/Entladeleistung3.000 W*
Netzanschlusseinphasig / 3-Phasenkompensation
Nennspannung230 V
Netzspannungsbereich180-270 Vac
Netzfrequenz50/60 Hz
NetzregulierungVDE-AR-N 4105:2018-11, G83/2, TOR Erzeuger
SicherheitIEC 62040-1, IEC 62477-1

Batterieerweiterung Alpha EES SMILE-i3

Nutzbare Kapazität2,75 kWh
Nennspannung51,2 V
Umgebungstemperatur-10°C bis 50°C, optional 10°C bis 50°C***
Gewicht42 kg
Abmessung (B x T x H)610 x 236 x 303 mm
Max. Lade-/Entladestrom56 A (1C)
Modulanzahlmax. 5 zusätzlich (zur im System integrierten Batterie)
ZertifikateUN38.3, IEC 62619
Nachrüstung nach Inbetriebnahme max.****36 Monate
* Im reinen PV-Betrieb.
** Ohne Zusatzbatterie max. Lade-/Entladeleistung von 2,75 kW.
*** Wenn die Zelltemperatur den Bereich 10-50 °C unter- oder überschreitet, verringert sich die Batterieleistung automatisch.
**** Verfügbarkeit vorausgesetzt.


The most important features at a glance:


Functionality AC coupled

State-of-the-art lithium battery technology

Alpha ESS only uses LFP batteries to ensure safe operation and a high number of cycles - and of course also because of their superior service life, high level of safety and better environmental compatibility.

Alpha Storion Smile B3

Scope of delivery

Your energy storage system comes as a complete package ready for connection and can even be installed by a single person thanks to its compact design! It includes all the necessary components at no extra charge - inverter, batteries, cable box, BMS, EMS and, on top of that, a free online portal and an app for a good overview.

Wall mounting Storion SMILE B3

Emergency power function

Even in the event of a power failure, the sun's energy is available to you free of charge. Enjoy your own electricity even during power outages and faults or when working in and on the power grid! The SMILE-i3 supports UPS and also enables load management in the event of a power failure

Alpha EES Smile B3 Backup Box storage system

Free online portal & app

Live network monitoring of the power generated by the PV system, consumption, battery charge status and feed-in to and consumption from the grid - in the online portal or in the practical app. Simply log in with your Alpha ID!

Alpha EES Smile B3 storage system Online monitoring & app



You can find more information from our colleagues:

Manufacturer: Alpha EES

Specialist partner portal: Storion4you

Alpha EES Smile5 storage system