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Alpha ESS SMILE-G3-T8 vs Bluetti B500

Usable capacity: Alpha ESS SMILE-G3-T8 3.65 kWh, Bluetti B500 –. The Alpha ESS SMILE-G3-T8 is better on 3 of 6 comparable points.

Who wins where

  • Alpha ESS SMILE-G3-T8
  • Bluetti B500
GeneralPerformanceEfficiencyElectricalWarranty & lifespan
General: Alpha ESS SMILE-G3-T8 50, Bluetti B500 50; Performance: Alpha ESS SMILE-G3-T8 66, Bluetti B500 45; Efficiency: Alpha ESS SMILE-G3-T8 44, Bluetti B500 18; Electrical: Alpha ESS SMILE-G3-T8 50, Bluetti B500 50; Warranty & lifespan: Alpha ESS SMILE-G3-T8 49, Bluetti B500 49

Biggest differences

FactSMILE-G3-T8B500
Expandable up to43.8 kWh19.8 kWh
Depth of discharge95 %90 %
Discharge power (continuous)8 kW7.6 kW
All specifications ↓

Score per area = position (0–100) relative to all 130 models in this category; higher is better.

Technical specifications Alpha ESSSMILE-G3-T8 BluettiB500
General
Cell chemistry LFP 1 LFP 2
Wi-Fi / app Yes 1 Yes 2
Performance
Usable capacity 3.65 kWh 1 –
Nominal capacity – 4.96 kWh 2
Expandable up to 43.8 kWh ✓ 1 19.8 kWh 2
Charge power (continuous) 8 kW 1 –
Discharge power (continuous) 8 kW ✓ 1 7.6 kW 2
Efficiency
Depth of discharge 95 % ✓ 1 90 % 2
Electrical
Backup power Yes 1 Yes 2
Off-grid capable – Yes 2
Dimensions & weight
IP rating – IP65 2
Min. operating temperature – -20 °C 2
Width – 636 mm 2
Height – 338 mm 2
Depth – 325 mm 2
Weight – 58 kg 2
Warranty & lifespan
Warranty 10 years 1 10 years 2

Sources

  1. SMILE-G3-T4/T5/T6/T8/T10 Residential Series, V09.15012025 — Alpha ESS · accessed 29 Sept 2026
  2. BLUETTI EP760 Spezifikationen, 1 — BLUETTI · accessed 01 Oct 2026