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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

EVERVOLT Gen 3 1818 kWh

Panasonic | EVHB-I7-X20 system: EVHB-I7 inverter with EV-X20 battery assembly comprising four EV-B5 modules

LFPDC-coupled

69/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-08-07

Full scorecard
Performance & Value

Smile G3 S5 / BAT-10.1P9.6–57.6 kWh

AlphaESS | SMILE-G3-S5 with one SMILE-G3-BAT-10.1P; 9.6 kWh usable reference, 1-6 modules

LFPAll-in-oneSingle-phase

67/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-09-22

LFPVPP-Ready
Full scorecard
Side by side

Score profile

MeasureEVERVOLT Gen 3 18Smile G3 S5 / BAT-10.1P
Capacity & Usability79 / 10082 / 100
Power & Efficiency74 / 10062 / 100
Longevity (verified)71 / 10065 / 100
Safety & Chemistry61 / 10075 / 100
Guarantee & Backbone92 / 10062 / 100
Energy Ecosystem42 / 10058 / 100

Capacity & Usability

EVERVOLT Gen 3 18
79 / 100
Smile G3 S5 / BAT-10.1P
82 / 100

Power & Efficiency

EVERVOLT Gen 3 18
74 / 100
Smile G3 S5 / BAT-10.1P
62 / 100

Longevity (verified)

EVERVOLT Gen 3 18
71 / 100
Smile G3 S5 / BAT-10.1P
65 / 100

Safety & Chemistry

EVERVOLT Gen 3 18
61 / 100
Smile G3 S5 / BAT-10.1P
75 / 100

Guarantee & Backbone

EVERVOLT Gen 3 18
92 / 100
Smile G3 S5 / BAT-10.1P
62 / 100

Energy Ecosystem

EVERVOLT Gen 3 18
42 / 100
Smile G3 S5 / BAT-10.1P
58 / 100
Side by side

Key specifications

MeasureEVERVOLT Gen 3 18Smile G3 S5 / BAT-10.1P
ArchitectureDC-coupled batteryAll-in-one energy system
Published usable capacity range18 kWh9.6–57.6 kWh
ChemistryLFPLFP
Power7.6 kW5 kW
Round-trip94 %Not recorded
Cycle life6,000 cyclesNot recorded
Scored benchmarkNot stated9.6 kWh

Architecture

EVERVOLT Gen 3 18
DC-coupled battery
Smile G3 S5 / BAT-10.1P
All-in-one energy system

Published usable capacity range

EVERVOLT Gen 3 18
18 kWh
Smile G3 S5 / BAT-10.1P
9.6–57.6 kWh

Chemistry

EVERVOLT Gen 3 18
LFP
Smile G3 S5 / BAT-10.1P
LFP

Power

EVERVOLT Gen 3 18
7.6 kW
Smile G3 S5 / BAT-10.1P
5 kW

Round-trip

EVERVOLT Gen 3 18
94 %
Smile G3 S5 / BAT-10.1P
Not recorded

Cycle life

EVERVOLT Gen 3 18
6,000 cycles
Smile G3 S5 / BAT-10.1P
Not recorded

Scored benchmark

EVERVOLT Gen 3 18
Not stated
Smile G3 S5 / BAT-10.1P
9.6 kWh
Decision snapshot

Where the comparison separates

OverallEVERVOLT Gen 3 18 leads the global score by 2 points.
Strongest dimensionsEVERVOLT Gen 3 18: Guarantee & Backbone · Smile G3 S5 / BAT-10.1P: Capacity & Usability
Largest differenceEVERVOLT Gen 3 18 has the largest pillar edge in Guarantee & Backbone (30 points).
Evidence coverageEVERVOLT Gen 3 18: strong evidence coverage (100%) · Smile G3 S5 / BAT-10.1P: strong evidence coverage (100%)

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.