| Published capacity range | 12 kWh |
| Scored configuration | 12 kWh |
| Cell chemistry | LFP (LiFePO4) |
| Usable capacity | 12 kWh |
| Usable energy / DoD | 100% DoD |
| Round-trip efficiency | 96% |
| Warranty period | 10 yr |
| Safety certification | Basic cert |
Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.
Battery-Box Premium HVL · every criterion scored by the live rubric (Solar Analytica battery rubric v2.9.0), 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 (%) | 100 | datasheet | Source |
| Modularity & scalability | Fully modular / stackable expandable | datasheet | Source |
| Power & Efficiency | |||
| Round-trip efficiency (%) | 96 | datasheet | Source |
| Operating temperature range | Standard | datasheet | Source |
| Backup surge / motor-start capability | Peak/surge rating published with duration | datasheet | Source |
| Longevity (verified) | |||
| Warranty period (yrs) | 10 | stated | Source |
| Safety & Chemistry | |||
| Cell chemistry | LFP (LiFePO4) | datasheet | Source |
| Safety certification | Basic cert | datasheet | Source |
| Thermal & fire mitigation | Passive thermal mgmt | datasheet | Source |
review.solar · audit sheet · Solar Analytica battery rubric v2.9.0 · https://review.solar/cards/byd-byd-battery-box-premium-hvl-12-0-us