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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

Whispr 13.3713.37 kWh

PowerPlus Energy | RX-5013Plus / RX-7013Plus; scored reference RX-7013Plus with 13.37 kWh storage and 7 kW inverter

LFPAll-in-oneSingle-phase

66/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-09-01

LFP5 kWh Modular
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 2026-09-01

LFPVPP-Ready
Full scorecard
Side by side

Score profile

MeasureWhispr 13.37Smile G3 S5 / BAT-10.1P
Capacity & Usability85 / 10082 / 100
Power & Efficiency62 / 10062 / 100
Longevity (verified)66 / 10065 / 100
Safety & Chemistry78 / 10075 / 100
Guarantee & Backbone49 / 10062 / 100
Energy Ecosystem52 / 10058 / 100

Capacity & Usability

Whispr 13.37
85 / 100
Smile G3 S5 / BAT-10.1P
82 / 100

Power & Efficiency

Whispr 13.37
62 / 100
Smile G3 S5 / BAT-10.1P
62 / 100

Longevity (verified)

Whispr 13.37
66 / 100
Smile G3 S5 / BAT-10.1P
65 / 100

Safety & Chemistry

Whispr 13.37
78 / 100
Smile G3 S5 / BAT-10.1P
75 / 100

Guarantee & Backbone

Whispr 13.37
49 / 100
Smile G3 S5 / BAT-10.1P
62 / 100

Energy Ecosystem

Whispr 13.37
52 / 100
Smile G3 S5 / BAT-10.1P
58 / 100
Side by side

Key specifications

MeasureWhispr 13.37Smile G3 S5 / BAT-10.1P
ArchitectureAll-in-one energy systemAll-in-one energy system
Published nominal capacity range13.37 kWhNot stated
ChemistryLFPLFP
Power7.0 kW5 kW
Round-tripNot recordedNot recorded
Cycle life5,000 cyclesNot recorded
Published usable capacity rangeNot stated9.6–57.6 kWh
Scored benchmarkNot stated9.6 kWh

Architecture

Whispr 13.37
All-in-one energy system
Smile G3 S5 / BAT-10.1P
All-in-one energy system

Published nominal capacity range

Whispr 13.37
13.37 kWh
Smile G3 S5 / BAT-10.1P
Not stated

Chemistry

Whispr 13.37
LFP
Smile G3 S5 / BAT-10.1P
LFP

Power

Whispr 13.37
7.0 kW
Smile G3 S5 / BAT-10.1P
5 kW

Round-trip

Whispr 13.37
Not recorded
Smile G3 S5 / BAT-10.1P
Not recorded

Cycle life

Whispr 13.37
5,000 cycles
Smile G3 S5 / BAT-10.1P
Not recorded

Published usable capacity range

Whispr 13.37
Not stated
Smile G3 S5 / BAT-10.1P
9.6–57.6 kWh

Scored benchmark

Whispr 13.37
Not stated
Smile G3 S5 / BAT-10.1P
9.6 kWh
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 / BAT-10.1P leads the global score by 1 point.
Strongest dimensionsWhispr 13.37: Capacity & Usability · Smile G3 S5 / BAT-10.1P: Capacity & Usability
Largest differenceSmile G3 S5 / BAT-10.1P has the largest pillar edge in Guarantee & Backbone (13 points).
Evidence coverageWhispr 13.37: 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.