Energidea
AlphaESS Smile-B3-Plus

AlphaESS

Series: AphasESS SMILE B3

Smile-B3-Plus

Single-phase ac coupled inverter all-in-one system with 4.79 kWh LFP battery

Partially verified

Best for

  • + Residential installations
  • + Single-phase residential installations
  • + Residential PV systems up to 5 kWp
  • + Cost-sensitive projects accepting standard warranty
  • + LFP battery applications - verify cycle life from datasheet

Not ideal for

  • ! Large-scale C&I projects - consider commercial product line
  • ! Three-phase commercial/industrial installations
  • ! Backup/battery-backup projects (no EPS functionality)
  • ! Projects requiring future expansion - AIO unit does not support parallel expansion

Key Specifications

Type

AC_COUPLED

Phase

SINGLE_PHASE

Rated Output Power

3 kW

Vendor

Chemistry

LFP

Vendor

Usable Capacity

4.79 kWh

Vendor

Warranty

5 years

Vendor
Show All Specifications

Core Electrical

AC Phase1PVendor
AC Rated Power3 kWVendor
Max AC Output Current13 AVendor
Power Factor Range0.8 leading...0.8 laggingVendor
THD3 %Vendor
MPPT Count-Vendor
Max DC Voltage-Vendor
MPPT Voltage Range-Vendor
Max Current per MPPT-Vendor
Recommended PV Power-Vendor
Max Efficiency90 %Vendor
EU Efficiency-Vendor

Battery

Battery ChemistryLFPVendor
Battery Voltage ClassLVVendor
Battery Capacity Min4.79 kWhVendor
Battery Capacity Max28.74 kWhVendor
Max Charge Power3 kWVendor
Max Discharge Power3 kWVendor
Round-trip Efficiency95 %Vendor

Backup

Backup / EPS SupportedtrueVendor
Backup Rated Power3 kWVendor
Switch Time10 msVendor
Black StartYesVendor
Parallel SupportYesVendor
Max Parallel Units6 unitsVendor
Generator Input Supported-

EMS & Communication

EMS ModesSelf-consumption, Time-of-use, UPSVendor
Export Limitation SupportedtrueVendor
Meter Type SupportedRS485Vendor
Remote Monitoring PlatformAlphaCloudVendor
API SupportedtrueVendor

Environment & Mechanical

Cooling Method-Vendor
IP RatingIP65Vendor
Operating Temp Range-10...50Vendor
Max Altitude3000 mVendor
Humidity Range15%...85%Vendor
Wiring Terminal Type-
Max Cable Size-
Dimensions (W x H x D)610 x 236 x 625 mmVendor
Weight64 kgVendor
Noise30 dB(A)Vendor

Compliance & Warranty

DC Surge Protection-Vendor
AC Surge Protection-Vendor
AFCI-Vendor
Anti-islandingYesVendor
CertificationsVDE-AR-N 4105, CE, UN38.3, IEC62619Vendor

Data Confidence & Verification

Partially verified

Data Sources

  • + Official datasheet - verified 2026-04-08
  • - Installation Manual - not available
  • - Certificate - not available

Data gaps that may affect your decision

  • ! Outdoor temperature range not specified - confirm outdoor suitability.
  • ! IP rating not documented - confirm installation location suitability.

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Compliance & Certifications

No compliance data available for this product.

Certifications

-

Documents & Downloads

DATASHEET PDF

Compatible Products - coming in Phase 3
Compare this productView SeriesStart Product MatchContact Vendor / Request Quote

Product data is sourced from manufacturers, official websites, and community contributions. Energidea does not guarantee completeness or accuracy. Installers should verify specifications, certifications, and compatibility with manufacturer documentation before quotation.

I campi core di confronto sono incompleti (>30% mancanti). Confronto diretto non ancora consigliato.

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Configurazione tipica del sistema

AC Retrofit

Adding energy storage to an existing solar PV system without replacing the existing inverter.

Tipo di rete: On-grid with Storage

Adatto per: Homeowners with older solar installations wanting to increase self-consumption.

Componenti principali

Smile-B3-Plus, SMILE-BAT-5P, Existing String Inverter, Smart Meter

Note

Connects directly to the AC bus of the house.

Disclaimer: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

Backup / UPS

Providing emergency power to essential circuits during grid outages.

Tipo di rete: On-grid with Backup

Adatto per: Homes in areas with occasional grid instability.

Componenti principali

Smile-B3-Plus, Essential Load Sub-panel

Note

Switching time less than 10ms ensures computers and routers remain online.

Disclaimer: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

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