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PLACEHOLDERNot a representation of the product
Performance & Value

Whispr 13.37

13.37 kWh · LFP · All-in-one · Single-phase

PowerPlus EnergyReleased 2025

66/ 100

Very good

Global

LFP5 kWh Modular

The verdict. In our Performance & Value class, PowerPlus Energy Whispr 13.37 leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

24thof 63 in Performance & ValueTop halfclass average 63.4
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The assessment

How it scores, by category

Capacity & Usability85
Power & Efficiency62
Longevity (verified)66
Safety & Chemistry78
Guarantee & Backbone49
Energy Ecosystem52

Market position

24thof 63 in Performance & ValueTop half
486676

Our reading

Whispr 13.37 scores 66, placing 24 of 63 in the Performance & Value class against a class average of 63.4. Its strongest scoring dimension is capacity & usability (85), above the class average of 83. Guarantee & Backbone scores 49, the lowest pillar for this product. The class average on guarantee & backbone is 55. Key specifications: LFP, 7.0 kW continuous output.

The data

Chemistry
LFP
Power
7.0kW
Round-trip
Not recorded
Cycle life
5,000cycles
Technology architecture

All-in-one energy system

Architecture guide

Presents storage and power conversion as one integrated product or product platform.

Product role
Battery modules, inverter functions and controls are packaged as one purchasing architecture.
Published range
13.37 kWh
Phase
Single phase
Backup boundary
Installation-specific
Architecture describes the product boundary. It is not a system design or an equipment-pairing decision.
Decision evidence

What the documents establish

Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.

Capacity guarantee: minimum retained at year 10

13.4 kWhfull9.4at yr 10
60708090100Rated capacity 100%Guaranteed floor 70.0%70.0%0yr2yr4yr6yr8yr10yr
Rated capacity (reference)Guaranteed floor: 70.0% at yr 10

No year-by-year capacity schedule is published for this product - the manufacturer guarantees only this end-of-term minimum, not a specific decline curve. Capacity figure based on the sourced usable capacity of the base configuration; modular systems scale with additional modules.

Blackout protection

68 / 100#29 of 78 batteries
fleet low 40median 65fleet high 100
No backupGrid-forming

Whole-home, seamless (<20ms)

Continuous power
7kW
Switchover
<20ms (seamless)
Surge / motor-start
Not published (AC-coupled)

The blackout score is a standalone benchmark of outage resilience only - it re-weights sourced specs already scored in this product’s pillars (backup tier, switchover, surge strength, backup power, off-grid recharge) and never affects the overall score. Dots show the full battery fleet; the marker is this product.

Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWhat usable capacity, backup power and warranted operating conditions will the installed Whispr 13.37 configuration deliver?

Verification & sources

Market context

Global evidencechange in the site menu

Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.

Benchmark anchor. The capacity is the exact published cabinet rating; the score uses the 7 kW inverter variant as the named reference configuration. Scored model: RX-7013Plus with 13.37 kWh storage and 7 kW inverter · checked 2026-08-01. Evidence.

Sources & references · checked 2026-08-15

Strong evidence coverage

20 of 20 scored criteria link directly to a published source.

Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not an independent guarantee that a claim is correct.

Record revision. Whispr specifications V6.0 dated 2025-10-14, installation manual V1.1 dated 2025-09-08, and governing warranty V4.0 dated 2025-10-02

Evidence timeline

Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots. No change to this product record has been published since the change ledger opened on 2026-08-16.

  1. Core scorecard evidence checked
  2. Australian certification source identity verified
  3. AU market evidence checked
  4. Plain-language warranty summary checked
  5. Series benchmark evidence checked

Evidence record (JSON)

Scored by Solar Analytica Research

Further reading from Findings

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