Home batteries · 8 models

Alpha ESS home batteries

All 8 models from Alpha ESS in our database, with the key figures side by side. Every value comes from an official register or the manufacturer; the source is on the product page.

At a glance

Usable capacity: 3.65 to 3.8 kWh
Nominal capacity: 4 kWh
Charge power (continuous): 3.68 to 10 kW
Discharge power (continuous): 3.68 to 10 kW
Depth of discharge: 95 %
Cell chemistry: LFP (8)
Coupling: DC-coupled (2), AC-coupled (1)

This is an overview by data, not a test or recommendation. Models from other brands with the same technology are in the comparisons and on the category page.

All models

Model	Usable capacity¹	Charge power (continuous)¹	Cell chemistry¹
SMILE-G3-B5	3.8 kWh	5 kW	LFP
SMILE-G3-S3.6	3.8 kWh	3.68 kW	LFP
SMILE-G3-S5	3.8 kWh	5 kW	LFP
SMILE-G3-T10	3.65 kWh	10 kW	LFP
SMILE-G3-T4	3.65 kWh	4 kW	LFP
SMILE-G3-T5	3.65 kWh	5 kW	LFP
SMILE-G3-T6	3.65 kWh	6 kW	LFP
SMILE-G3-T8	3.65 kWh	8 kW	LFP

Compare all models →

Comparisons with Alpha ESS

Other brands

Sources

Alpha ESS SMILE-G3-S3.6 / S5 / B5 Datasheet, V01.13122024 — Alpha ESS Co., Ltd. · accessed Sep 29, 2026