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Performance & Value

EQ4800

9.32–41.93 kWh · LFP · DC-coupled

FoxESSReleased 2025

64/ 100

Good

Global

LFP100% Usable5 kWh Modular

The verdict. In our Performance & Value class, FoxESS EQ4800 leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

16thof 20 in Performance & ValueBottom quarterclass average 69.2
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The assessment

How it scores, by category

Capacity & Usability94
Power & Efficiency68
Longevity (verified)56
Safety & Chemistry76
Guarantee & Backbone50
Energy Ecosystem45

Market position

16thof 20 in Performance & ValueBottom quarter
576481

Our reading

EQ4800 scores 64, placing 16 of 20 in the Performance & Value class against a class average of 69.2. Its strongest scoring dimension is capacity & usability (94), above the class average of 90. Energy Ecosystem scores 45, the lowest pillar for this product. The class average on energy ecosystem is 53. Key specifications: LFP, 95% round-trip efficiency, 4.48 kW continuous output.

The data

Chemistry
LFP
Power
4.48kW
Round-trip
95%
Cycle life
Not recorded

Capacity guarantee: minimum retained at year 10

9.3 kWhfull6.5at 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

51 / 100#27 of 28 batteries
fleet low 46median 68fleet high 92
No backupGrid-forming

Whole-home (via hybrid inverter)

Continuous power
4.48kW
Switchover
>100ms / undisclosed
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 EQ4800 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 score uses the 9.32 kWh EQ4800-L2 reference stack. The Australian series supports two to nine EQ4800 modules for 9.32 to 41.93 kWh usable capacity. Scored model: EQ4800-L2 · checked 2026-07-27. Evidence.

Sources & references · checked 2026-07-27

Strong evidence coverage

28 of 28 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.