| Chemistry | LFP'Lithium Iron Phosphate (LiFePO4)'; BYD in-house LFP cells | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Usable energy | 12.8 kWhDC usable energy, 100% DOD, 0.2C charge & discharge at +25 C; system usable energy may vary with inverter brand | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Nominal energy | 12.8 kWhderived: 5 modules x 2.56 kWh module rating (HVS module 2.56 kWh, 102.4 V, 38 kg). Datasheet lists 12.8 kWh as usable energy at 100% DoD, so nominal = usable. | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Max. discharge power | 12.8 kWderived: max output current 25 A x nominal voltage 512 V (DC). Peak 50 A for 3 s. Derating between -10 C and +5 C. Actual AC power limited by inverter. | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Max. charge power | unavailableDatasheet gives only output (discharge) current (25 A); charge power is set by the inverter | Not published |
| C-rate | 1 Cderived: 25 A / (2.56 kWh / 102.4 V = 25.0 Ah module capacity); discharge only | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Round-trip efficiency | 96 % (DC)'Round-trip Efficiency >= 96%' for the battery (no PCS in product); measurement point not stated, treated as DC battery-side. Datasheet also cites efficiency certified by HTW Berlin. | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Depth of discharge | 100 %usable energy specified at 100% DOD test condition | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Cycle life | unavailableNo cycle-life figure in datasheet; warranty uses throughput instead (see warranty_throughput_mwh) | Not published |
| Warranty | 10 yearsEU limited warranty (BYD Smart Device Hungary Kft.), products installed in Europe on/after 2021-12-01: 10 y product + performance warranty. Start date = 6 months after production date or 30 days after documented delivery. Germany has a separate DE warranty document. | bydbatterybox.comManufacturer page · read 28 Oct 2026 |
| Warranty cycles | unavailableWarranty is throughput-based, not cycle-based; equivalent ~3010 full cycles (derived: 38.53 MWh / 12.8 kWh) | Not published |
| Warranty throughput | 38.53 MWh'Minimum Throughput Energy' = total output energy recorded in control module; warranty ends at 10 y or this throughput, whichever first | bydbatterybox.comManufacturer page · read 28 Oct 2026 |
| Capacity at end of warranty | 60 %retain 60% of usable energy for 10 y or until min. throughput reached | bydbatterybox.comManufacturer page · read 28 Oct 2026 |
| Nominal voltage | 512 Voperating voltage 400-600 V | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Operating temperature | −10 to 50 °Cpower derating between -10 C and +5 C | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Dimensions (W × D × H) | 585 × 298 × 1,461 mmdatasheet H x W x D, one tower | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Weight | 205 kgone tower incl. 5 modules | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Ingress protection | IP55indoor / outdoor, floor stand | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Integrated inverter (PCS) | No, battery onlybattery only; requires external hybrid/battery inverter | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Scalability | HVS 5.1 (2 modules, 5.12 kWh) to HVS 12.8 (5 modules); up to 3 towers in parallel, max 38.4 kWh (3 x HVS 12.8)Max 3 towers in parallel also stated in operating manual (BCU2.0 V1.2): 'Maximum three battery systems could be connected in parallel' (exception SMA Sunny Boy Storage 3.7-6.0). HVS and HVM cannot be mixed. | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Certifications | VDE 2510-50, IEC 62619, CEC, CE, UN38.3 | bydbatterybox.comDatasheet · read 28 Oct 2026 |
| Compatible inverters | Fronius Symo GEN24 Plus, Fronius Primo GEN24 Plus, Fronius Symo Hybrid (HVM only), Fronius Verto Plus, GoodWe ET/BT/EH/BH/EHB, Viessmann A3, KOSTAL Plenticore Plus (G2), KOSTAL Plenticore G3, KOSTAL Plenticore BI, KOSTAL PIKO MP Plus, KOSTAL PIKO BA, Sungrow SH RT (5-10 kW), Sungrow SH RS, GE GEH, SMA Sunny Boy Storage, SMA STP 5.0-10.0 SE, SMA Sunny Boy Smart Energy, KACO blueplanet hybrid, Ingeteam, Solis S6-EH3P, Deye, Hoymiles HYT-HV, Maxhub PHN-BH2Compatible Inverter List V2.22 (2026-10-10); each inverter has its own allowed module range (HVS 2-5 / HVM 3-8 typical; some only 2-3 or 2-4) and min firmware. List abbreviated to model families. | bydbatterybox.comDatasheet · read 28 Oct 2026 |
