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Performance & Value

Smart Battery S0

5–30 kWh · LFP · DC-coupled

iStoreReleased 2023

62/ 100

Good

Global

LFP100% Usable5 kWh Modular

The verdict. In our Performance & Value class, iStore Smart Battery S0 leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

19thof 24 in Performance & ValueBottom quarterclass average 66.7
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The assessment

How it scores, by category

Capacity & Usability94
Power & Efficiency52
Longevity (verified)56
Safety & Chemistry78
Guarantee & Backbone50
Energy Ecosystem42

Market position

19thof 24 in Performance & ValueBottom quarter
546281

Our reading

Smart Battery S0 scores 62, placing 20 of 24 in the Performance & Value class against a class average of 66.7. Its strongest scoring dimension is capacity & usability (94), running 5.6 points above the class average on this dimension. Energy Ecosystem scores 42, the lowest pillar for this product. The class average on energy ecosystem is 50. Key specifications: LFP, 2.5 kW continuous output.

The data

Chemistry
LFP
Power
2.5kW
Round-trip
Not recorded
Cycle life
Not recorded

Capacity guarantee: minimum retained at year 10

5.0 kWhfull3.5at 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

55 / 100#28 of 32 batteries
fleet low 46median 68fleet high 92
No backupGrid-forming

Whole-home (via hybrid inverter)

Continuous power
2.5kW
Switchover
>100ms / undisclosed
Surge / motor-start
Surge rated
AC terminal protection
Not specified

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

Two things to check

Local positionUse a market view to check local availability, approvals and warranty scope.

Ask the installer: What usable capacity, backup power and warranted operating conditions will the installed Smart Battery S0 configuration deliver?

Verification & sources

Market context

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

Benchmark anchor. The range uses one to three 5 kWh modules per system and up to two systems. The score remains anchored to one reviewed 5 kWh configuration. Scored model: Smart Battery S0 5 kWh · checked 2026-07-27. Evidence.

Sources & references · checked 2026-07-27

Strong evidence coverage

30 of 30 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.

Help strengthen this record

These are published evidence gaps, not private submissions. A source is reviewed under the same methodology whether it comes from a reader, installer or manufacturer.

View the open evidence register

Evidence timeline

Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.

  1. Core scorecard evidence checked
  2. Series benchmark source checked
  3. AU market evidence checked
  4. Plain-language warranty summary checked

Scored by Solar Analytica Research

Further reading from Signals

Stay across the benchmark.

New scorecards, score changes and market signals, published as they happen.