| Published power range | 0.8 kW |
| Scored benchmark | 0.8 kW |
| Cell chemistry | LFP (LiFePO4) |
| Usable energy / DoD | 90% DoD |
| Cycle life | 8000 cycles |
| Warranty period | 10 yr |
| Safety certification | CE + VDE market approval (IEC 62619 not confirmed) |
| Manufacturing track record | 10-15 years |
Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.
HiBattery 4020 AC · every criterion scored by the live rubric (Solar Analytica plug-in ESS rubric v1.2.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this page is the full record for verification and right of reply.
| Capacity & Usability | |||
| Usable energy / DoD (%) | 90 | stated | No link |
| Modularity & scalability | Fully modular, ≤5 kWh increments, expandable in field | stated | No link |
| Energy density / footprint | Compact high-density (integrated) | stated | No link |
| Output Power | |||
| Grid-injection power (kW) | 0.8 | stated | No link |
| Backup output power (kW) | 2.5 | stated | No link |
| Operating temperature range | Wide (-20°C to 55°C+), self-heating confirmed | stated | No link |
| Longevity (verified) | |||
| Cycle life (cycles to stated EOL) | 8000 | stated | Source |
| Warranty period (yrs) | 10 | stated | Source |
| End-of-warranty retained capacity (%) | 70 | stated | Source |
| Cell balancing architecture | Pack-level only / not disclosed | stated | No link |
| Warranty degradation guarantee | End-point only: minimum capacity at end of warranty term | stated | No link |
| Safety & Chemistry | |||
| Cell chemistry | LFP (LiFePO4) | stated | No link |
| Safety certification | CE + VDE market approval (IEC 62619 not confirmed) | stated | No link |
| Thermal & fire mitigation | Fire suppression system (aerosol or gel) | stated | No link |
| Self-heating capability | Active self-heating confirmed, -20°C operation | stated | No link |
| Ingress protection (outdoor) | IP66 outdoor-rated | stated | No link |
| Guarantee & Backbone | |||
| Warranty assurance | Not listed | stated | No link |
| Financial strength & warranty backing | Financially strong (profitable / strong parent) | stated | No link |
| Manufacturing track record | 10-15 years | stated | No link |
| Connectivity & Ecosystem | |||
| Open protocol & API maturity | Cloud API only | stated | No link |
| VPP & grid services readiness | VPP-capable, protocol ready | stated | No link |
| Smart home & IoT depth | No documented smart home integration | stated | No link |
review.solar · audit sheet · Solar Analytica plug-in ESS rubric v1.2.0 · https://review.solar/cards/hoymiles-hoymiles-hibattery-4020-ac