The assessment
How it scores, by category
Market position
The data
DC-coupled battery
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
- 10.2–66.5 kWh
- Phase
- Not recorded
- Backup boundary
- Installation-specific
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, 10.2 kWh in the scored configuration.10.2 kWh usableScored configuration: T-HS10.2 (2 x TB-HS51 or TB-HS51O modules). Published range 10.2–66.5 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 2Capacity guarantee: minimum retained at year 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
71 / 100#20 of 66 batteriesWhole-home (via hybrid inverter)
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.
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. Capacity range describes supported configurations; the score remains anchored to the reviewed 10.2 kWh reference stack, not the 66.5 kWh maximum. Scored model: T-HS10.2 (2 x TB-HS51 or TB-HS51O modules) · checked 2026-07-26. Evidence.
Australian warranty decision
1 product record
Read the Australian warranty as a claim pathway: the headline term is separate from remedy, labour, freight, site work, transfer and registration conditions.
SolaX TSYS-HS51 10.2 kWh · Home battery
Australian evidence checked 2026-08-06.
Covered3 sources
Australian warranty scope: Australia; SolaX Power Network Technology (Zhejiang) Co., Ltd provides the governing warranty and names SolaX Power AUS Pty Ltd as the Australian importer. T-HS10.2 through T-HS66.5 are covered for 10 years with a 6,000-cycle or throughput operating limit and 70% retained capacity.
Structured claim terms: Recorded.
- Term
- 10 yr productStated in the structured comparison
- Product remedy
- ConditionalRepair or replacement with capped service support.
- Labour
- Not coveredTravel and on-site installation labour are excluded.
- Freight
- ConditionalStandard transport support is capped by location and claim type.
- Removal and reinstallation
- CoveredRemoval and reinstallation are not fully covered.
- Transferability
- CoveredNo subsequent-owner transfer right was found in the governing terms.
- Registration and conditions
- Not statedActivation, registration, authorised supply and installation conditions apply.
Sources & references · checked 2026-08-06
Strong evidence coverage
31 of 31 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.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 5 more
- Manufacturing track recordManufacturer ↗
- VPP & grid services readinessManufacturer ↗
- EV charging integrationManufacturer ↗
- Smart home & IoT depthManufacturer ↗
- Firmware & security disclosureManufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Australian certification source identity verified
- Core scorecard evidence checked
- AU market evidence checked
- Plain-language warranty summary checked
- US market evidence checked
- Series benchmark evidence 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.
Our reading
TSYS-HS51 scores 71, placing 9 of 53 in the Performance & Value class against a class average of 64.4. Its strongest scoring dimension is capacity & usability (93), running 8.2 points above the class average on this dimension. Guarantee & Backbone (56) is the dimension with the most room to move. Key specifications: LFP, 6.1 kW continuous output.