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Performance & Value

Smart Battery S0

5–30 kWh · LFP · DC-coupled

iStoreReleased 2023

63/ 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.

36thof 63 in Performance & ValueLower halfclass average 63.4
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The assessment

How it scores, by category

Capacity & Usability94
Power & Efficiency56
Longevity (verified)56
Safety & Chemistry78
Guarantee & Backbone50
Energy Ecosystem48

Market position

36thof 63 in Performance & ValueLower half
486376

Our reading

Smart Battery S0 scores 63, placing 36 of 63 in the Performance & Value class against a class average of 63.4. Its strongest scoring dimension is capacity & usability (94), running 10.5 points above the class average on this dimension. Energy Ecosystem (48) is the dimension with the most room to move. Key specifications: LFP, 2.5 kW continuous output.

The data

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

DC-coupled battery

Architecture guide

Stores DC energy and relies on system power electronics outside the battery product for household AC.

Product role
The published battery record covers the storage stack, controller and stated capacity range.
Published range
5–30 kWh
Phase
Not recorded
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.

Usable capacity

100% of this battery’s nominal capacity is usable, 5 kWh in the scored configuration.

5 kWh usableScored configuration: Smart Battery S0 5 kWh. Published range 5–30 kWh.

No reserve is withheld at the stated depth of discharge.

At a sourced 100% depth of discharge the usable and nominal figures are the same number, so no separate nominal capacity is stated.

Usable capacity sourceDepth-of-discharge source 1Depth-of-discharge source 2

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

64 / 100#47 of 78 batteries
fleet low 40median 65fleet high 100
No backupGrid-forming

Whole-home (via hybrid inverter)

Continuous power
2.5kW
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
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 Smart Battery S0 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 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 2026-08-15

Strong evidence coverage

29 of 29 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. Smart Battery S0 May 2025 technical specification, March 2026 warranty, CER battery export and ABR certificate-holder status reviewed 2026-08-07

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. AU market evidence checked
  3. Plain-language warranty summary checked
  4. Series benchmark evidence checked

Evidence record (JSON)

Scored by Solar Analytica Research

Further reading from Findings

Stay across the benchmark.

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