HighJoule's All-In-One Single-Phase Stacked HESS offers three optimized models: HJ-H05-H05(k-7), HJ-H10-H05(k-8), and HJ-H15-H05(k-9). Their modular design enables flexible capacity scaling from 5.3kWh to 15.9kWh through battery stacking, precisely matching household to small business energy demands. Each 5.3kWh module adds only 50kg weight while maintaining a unified 740×220mm footprint, solving space-limited installations.
Uniquely supporting Li-ion/Lead-acid dual compatibility (80-467V range), it pioneers legacy battery integration. LFP cells deliver 6,000 cycles at 90% DoD with intelligent cycling: Lead-acid buffers peak loads, extending lithium lifespan to 7,000+ cycles – 40% longer than single-battery systems. Military-grade IP65 enclosure ensures operation from -25°C to 50°C.
Equipped with dual MPPT trackers that boast an impressive 99.9% efficiency and feature an ultra-wide voltage range from 100V to 550V with a startup voltage of 100V. Even when 30% of the solar panels are shaded, it can still maintain a yield higher than 97%. With a maximum PV input power of 10kW and a tolerance for up to 580V, it's well-prepared for high-voltage solar arrays in the future. Compared to conventional inverters, it can generate an additional 127+ hours of electricity per year.
It achieves a backup switching time of less than 10ms, which is three times faster than the industry standard, via magnetic relays. Key differentiating features include: a maximum output current of 27.2A that enables it to directly power 3HP air conditioners; a THDv (Total Harmonic Distortion of voltage) of less than 3% to safeguard sensitive medical and laboratory equipment; an adjustable power factor within the range of -0.8 to +0.8 to avoid grid penalty fees; and it is certified with VDE-AR-N4105/G99, ensuring seamless integration with the grids in the EU, UK, and AU regions.
Backed by global certifications: Battery Safety: UN38.3 + IEC62619, Grid Compliance: AS/NZS 4777.2 + CEI0-21, Lifespan: 10-year warranty with 80% capacity retention after 6,000 cycles (25℃).
| Product model | HJ-H05-H05(k-7) | HJ-H10-H05(k-8) | HJ-H15-H05(k-9) |
| BATTERY PORT | |||
| Battery Type | Li-on/ Lead-acid | ||
| Nominal Battery Voltage [V] | 96 | ||
| Battery Voltage Range [V] | 80-450 | 80-467.2 | |
| Max. Charging Current [A] | 60 | 60 | 60 |
| Max. Discharging Current [A] | 60 | 60 | 60 |
| INPUT PV | |||
| Max. PV Input Power [kW] | 10 | ||
| Max. PV Input Voltage [V] | 580 | ||
| MPPT Range[V] | 100-550 | ||
| Start-up Voltage [V] | 100 | ||
| Max. Input Current[A] | 15/15 | ||
| Max. Short Circuit Current [A] | 18.75/18.75 | 22.5/22.5 | |
| MPPT Trackers | 2 | ||
| MPPT Trackers | 1/1/1 | ||
| GRID PORT | |||
| Rated Output Power [kVA] | 5/4.6(DE) | 5/4.6(DE) | 6 |
| Max. Output Current [A] | 22.7 | 22.7 | 27.2/26 |
| Max. Output Apparent Power [kVA] | 5/4.6(DE) | 5/4.6(DE) | 6 |
| Max. Input Power [kVA] | 10 | 10 | 11.5 |
| Rated Grid Voltage [Vac] | 230 | 230 | 220/230 |
| Grid Voltage Range [Vac] | 180-270 | ||
| Rated Grid Frequency [Hz] | 50/60 | ||
| Power Factor | -0.8~+0.8 | ||
| THDi | <3% | ||
| BACKUP PORT | |||
| Surge Backup Power [kVA] | 10 | 11.5 | |
| Rated Backup Power [kVA] | 5 | 6 | |
| Rated Backup Voltage [Vac] | 230 | 220/230 | |
| Rated Backup Frequency [Hz] | 50/60 | 50/60 | |
| THDv | <3%(Linear Load)/<5% (Non-linear Load) | ||
| DCV | <100mV | ||
| Crest Ratio | 3:1 | ||
| Switch Time | <10ms | ||
| EFFICIENCY | |||
| Max. Efficiency | 97.30% | ||
| Europe Efficiency | 96.20% | ||
| MPPT Efficiency | 99.90% | ||
| Max. Round Trip Efficiency | 90% | ||
| HMI&COMM. | |||
| Communication With BMS | CAN/RS-485 | ||
| Load Monitoring | Meter/CT/ Backup box | ||
| External Communication | RS-485/WIFI/4G/ Ethernet | ||
| User Interface | LED/LCD | ||
| BATTERY | |||
| Total Energy [kWh] | 5.3 | 10.6 | 15.9 |
| Battery Module | 102.4V 5.3kWh | ||
| Number of Modules | 1 | 2 | 3 |
| Cell Type | LFP(LiFePO4) | ||
| Nominal Voltage [V] | 102.4 | 204.8 | 307.2 |
| Operating Voltage [V] | 80-116.8 | 160-233.6 | 240-350.4 |
| Max Charge/ Discharge Current [A] | 52 | ||
| Continue Discharge Output [kW] | 5 | 10 | 15 |
| GENERAL SPECIFICATIONS | |||
| Dimensions (W*D*H)[mm] | 740*220*970 | 740*220*1305 | 740*220*1640 |
| Approximate Weight [KG] | 86 | 136 | 186 |
| IP Rating of Enclosure | IP65 | ||
| Operating Temperature | Charge:0℃~50℃/ Discharge:0℃~50℃ | ||
| Storage Temperature | 0℃~35℃ | ||
| Humidity | ≤95% | ||
| Altitude [m] | ≤3000 | ||
| Cycle Life | Inverter:5 years/10 years; Battery:10+ years,6000 cycles(90% DOD,25℃) | ||
| Installation | Stack, Floor-Mounted | ||
| CERTIFICATION | |||
| Grid Regulation Safety | VDE-AR-N4105:2018,G98,G99,C10/11:2021,NTS 631,RD647:2020 UNE 217002:2020,CEI0-21,VDE 0126-1-1, NRS 097-2-1,AS/NZS 4777.2:2020, EN 50549-1 |
CEI0-21,NRS 097,IEC 61727 IEC 62116,EREC G99 |
|
| Safety Regulation | IEC/EN 62109-1&2,IEC/EN 62477-1:2012 | ||
| EMC | IEC/EN 61000-6-1,IEC/EN 61000-6-2,IEC/EN 61000-6-3,IEC/EN 61000-6-4 | ||
| Battery | UN38.3,IEC62619 | ||
Note: Specifications are subject to change without prior notice for product improvement. Data Sheet / Get your free product catalog and the latest pricing!
The Stackable HESS has the following models and capacities:
You can choose according to your household or small business energy requirements.
The product uses LFP cells. These cells can undergo 6,000 cycles at 90% Depth of Discharge (DoD). Additionally, it features a combination of Li-ion and Lead-acid batteries where the lead-acid batteries buffer peak loads. This extends the lifespan of the lithium batteries to over 7,000 cycles, which is much longer than many single-battery systems.
It has dual MPPT trackers with an efficiency of 99.9%. The trackers work within a voltage range from 100V to 550V and start up at 100V. Even when 30% of the solar panels are shaded, it can still maintain a yield of over 97%.
When the grid fails, it can switch to backup power in less than 10ms. This is enabled by magnetic relays. It’s three times faster than the common industry standard. Moreover, it can directly power a 3HP air conditioner as it has a maximum output current of 27.2A.
Yes, it’s safe and meets various standards. For battery safety, it complies with UN38.3 and IEC62619. For grid integration, it follows the AS/NZS 4777.2 and CEI0-21 standards, ensuring its safe and reliable operation in different conditions.
It has a military-grade IP65 enclosure, allowing it to operate in temperatures ranging from -25°C to 50°C. So it can function properly regardless of whether it’s cold or hot outside.
The energy management system has multiple functions:
All these features work together to predict energy usage patterns and help increase the self-consumption rate to over 92%, which is about 12% higher than some other similar products.
The above answer is for reference. For further details, please reach out to us.
HighJoule’s Stackable HESS (Models HJ-H05/H10/H15) delivers 5.3-15.9kWh truly modular capacity with industry-unique Li-ion/Lead-acid dual compatibility (80-467V). Engineered for critical scenarios: 🔋 Sun-scarce homes: Dual 99.9%-efficiency MPPT + 100V startup outperforms rivals by 127+ annual solar hours in low-light. ⚡ Retrofit-ready sites: Patented lead-acid buffering slashes 40% battery costs while maintaining 6,000 cycles @ 90% DoD on LFP cells. 🏥 Sensitive equipment zones: <3% THDv + 27.2A clean output ensures zero blackouts for medical labs (vs. >5% THDv in competitors). IP65 armor (-25°C operation) + 52A charge/discharge enables hurricane-prone clinics and peak-shaving shops to achieve industry-low $0.08/kWh.
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