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Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.

Market context

Global benchmark

Performance & Value

Smart Battery S0

iStore

62/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-07-27

LFP100% Usable5 kWh Modular
Full scorecard
Performance & Value

Smile G3 S5

AlphaESS

78/ 100

Superior

Moderate evidence coverage · 58%

Evidence checked 2026-07-16

LFPUL9540AVPP-Ready
Full scorecard
Side by side

Score profile

MeasureSmart Battery S0Smile G3 S5
Capacity & Usability94 / 10086 / 100
Power & Efficiency52 / 10080 / 100
Longevity (verified)56 / 10070 / 100
Safety & Chemistry78 / 10087 / 100
Guarantee & Backbone50 / 10078 / 100
Energy Ecosystem42 / 10067 / 100

Capacity & Usability

Smart Battery S0
94 / 100
Smile G3 S5
86 / 100

Power & Efficiency

Smart Battery S0
52 / 100
Smile G3 S5
80 / 100

Longevity (verified)

Smart Battery S0
56 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

Smart Battery S0
78 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

Smart Battery S0
50 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

Smart Battery S0
42 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasureSmart Battery S0Smile G3 S5
Published usable capacity range5–30 kWh8.2–60.5 kWh
Scored benchmark5 kWh9.6 kWh
ChemistryLFPLFP
Power2.5 kW5 kW
Round-tripNot recorded95 %
Cycle lifeNot recorded10,000 cycles

Published usable capacity range

Smart Battery S0
5–30 kWh
Smile G3 S5
8.2–60.5 kWh

Scored benchmark

Smart Battery S0
5 kWh
Smile G3 S5
9.6 kWh

Chemistry

Smart Battery S0
LFP
Smile G3 S5
LFP

Power

Smart Battery S0
2.5 kW
Smile G3 S5
5 kW

Round-trip

Smart Battery S0
Not recorded
Smile G3 S5
95 %

Cycle life

Smart Battery S0
Not recorded
Smile G3 S5
10,000 cycles
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 16 points.
Strongest dimensionsSmart Battery S0: Capacity & Usability · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Power & Efficiency (28 points).
Evidence coverageSmart Battery S0: strong evidence coverage (100%) · Smile G3 S5: moderate evidence coverage (58%)

A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.

Both products are scored in the Performance & Value class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.