BYD HVS 7.7 Battery
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The BYD Battery-Box Premium HVS 7.7 (7.68 kWh) is a high-voltage energy storage solution that works the Fronius GEN24 inverter series.
Usable Energy: 7.68 kWh
Backup power capability: With PV Point and Full Backup options
Advanced safety features: over/under voltage protection, overcurrent protection, and temperature monitoring
Battery System Components: 3x 2.56kWh BYD HVS battery modules + 1x BYD BCU + Base
Model Number: BYD HVS 7.7
Fronius Inverter Compatibility: Fronius Primo GEN24 Plus, Fronius Symo GEN24 Plus
• Supports High-Powered Emergency Backup and Off-Grid Operation
• Achieves Maximum Efficiency with a True High-Voltage Series Connection
• Patented Modular Plug Design Eliminates Internal Wiring for Maximum Flexibility and Ease of Use
• Cobalt-Free Lithium Iron Phosphate (LFP) Battery for Maximum Safety, Longevity, and Power
• Compatible with Leading 1 and 3 Phase High Voltage Battery Inverters
• Two Unique Modules to Accommodate a Wide Range of System Sizes
• Adheres to the Highest Safety Standards, including VDE 2510-50
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F.A.Q
Frequently Asked Questions
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Do I need a generator for my off-grid system?
Your solar system should cover your power needs 95% + of the time, however we highly recommend a good quality, automatic start generator to ensure you have energy security and full power capacity throughout the worst days of winter.
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I have single phase power, how much rooftop solar PV can I install on my roof?
If your house is single phase power, the amount of rooftop solar PV that you can install will depend on your electricity network provider, as each electricity network provider has different rules.
In almost all instances, you can install more inverter capacity than what the electricity network provider says, so long as you grid export limit your solar PV system. Note: Not all inverters have grid export limit capability.
Below is a table showing the allowed capacity (inverter capacity and your grid export limit), for each of the electricity network providers for single phase households:
SA Power Networks (SA) max 10kW inverter capacity, 5kW export limit Powercor (VIC) no inverter limit, 5kW export limit CitiPower (VIC) no inverter limit, 5kW export limit Ausnet Services (VIC) max 10kW inverter capacity, 5kW export limit United Energy (VIC) max 10kW inverter capacity, 10kW export limit Jemena (VIC) max 10kW inverter capacity, 10kW export limit Energex (QLD) max 10kW inverter capacity, 5kW export limit Ausgrid (NSW) max 10kW inverter capacity, 10kW export limit EVO Energy (ACT) max 10kW inverter capacity, 5kW export limit -
Is my solar system covered by my home and contents insurance?
The short answer is yes, your solar system will be covered by your home and contents insurance however your premium might increase. It is recommended that you contact your insurer and discuss the impact of your solar system on your home and contents insurance with them. Note some insurance companies can provide additional insurance cover if your solar PV system is damaged or malfunctions in some way.
Safety
• In-house developed LFP cells
• Trusted in millions of electric vehicles
Flexibility
• Modular design
• Expandable at any time
Reliability
• LFP expertise since 2002
• Over 1 million systems installed in 100+ countries
Easy Installation
• Patented internal plug connection
• Fast and simple setup
High Performance
• High efficiency certified by HTW Berlin
• Powerful backup function
Perfect Compatibility
• Works seamlessly with leading single and three-phase inverters
PERFORMANCE
| HVS 5.1 | HVS 7.7 | HVS 10.2 | HVS 12.8 | |
Battery Module (HVM module has two versions with two types of cells applied separately. Both versions share the same performance, only weights differ.) | HVS (2.56 kWh, 102.4 V, 38 kg) | |||
| Number of Modules | 2 | 3 | 4 | 5 |
Usable Energy (DC Usable Energy, Test conditions: 100% DOD, 0.2C charge & discharge at + 25°C. System Usable Energy may vary with different inverter brands) | 5.12 kWh | 7.68 kWh | 10.24 kWh | 12.8 kWh |
Max Output Current (Power derating will occur between -10°C and +5°C.) | 25 A | 25 A | 25 A | 25 A |
Peak Output Current (Power derating will occur between -10°C and +5°C.) | 50 A, 3 s | 50 A, 3 s | 50 A, 3 s | 50 A, 3 s |
| Nominal Voltage | 204.8 V | 307.2 V | 409.6 V | 512 V |
| Operating Voltage | 160 - 240 V | 240 - 360 V | 320 - 480 V | 400 - 600 V |
| Dimensions (H/W/D) | 762 x 585 x 298 mm | 995 x 585 x 298 mm | 1228 x 585 x 298 mm | 1461 x 585 x 298 mm |
| Weight | 91 kg | 129 kg | 167 kg | 205 kg |
GENERAL DATA
| Operating Temperature | -10 °C to +50°C |
Battery Type | Lithium lron Phosphate (LiFePO4) |
| Communication | CAN/RS485 |
Protection Rating | IP55 |
| Round-trip Efficiency | ≥96% |
Environment | Indoor / Outdoor |
Mounting Method | Floor Stand |
| Certification | VDE2510-50 / IEC62619 / CEC / CE / UN38.3 |
| Applications | ON Grid / ON Grid + Backup / OFF Grid |
Warranty (Conditions apply. Refer to BYD Battery-Box Premium Limited Warranty Letter.) | 10 Years |
| Compatible Inverters |
 |
INVERTER COMPATABILITY
| BYD Battery-Box Premium HVS / HVM | Primo GEN24 Plus |
| HVS 5.1 | ✅ |
| HVS 7.7 | ✅ |
BYD Battery-Box HVS Premium Specifications
| BYD Battery-Box HVS Premium | HVS 5.1 | HVS 7.7 |
| Usable capacity of the battery [kWh] | 5.1 | 7.7 |
| Nominal voltage of the battery [V] | 204 | 307 |
| Battery operating voltage [V] | 160 - 240 | 240 - 360 |
| Max. charge/discharge current Primo/Symo GEN24 Plus [A] | 22 | |
Charging/discharging power capability of Fronius Primo GEN24 Plus inverters and BYD HVS
| Maximum charging and discharging power with GEN24 Plus [kW] | HVS 5.1 | HVS 7.7 |
| Primo GEN24 3.0 Plus | 3.2 | 3.2 |
| Primo GEN24 3.6 Plus | 3.9 | 3.9 |
| Primo GEN24 4.0 Plus | 4.2 | 4.2 |
| Primo GEN24 4.6 Plus | 4.5 | 4.9 |
| Primo GEN24 5.0 Plus | 4.5 | 5.3 |
| Primo GEN24 6.0 Plus | 4.5 | 6.3 |
It is possible to combine multiple BYD batteries to increase energy storage capacity, with key information show below:
Energy capacity of paralleled BYD HVS batteries
BYD BATTERY-BOX PREMIUM | ||
2x / 3x HVS 5.1 | 2x / 3x HVS 7.7 | |
| Capacity [kWh] | 10.24 / 15.36 | 15.36 / 23.04 |
| Primo GEN24 Plus | ✅ | ✅ |
Maintenance and Storage
Cleaning
It is recommended that the battery system be cleaned periodically. If the enclosure is dirty, please use a soft, dry brush or a dust collector to remove the dust. Liquids such as solvents, abrasives, or corrosive liquids should not be used to clean the enclosure.
Maintenance
The battery module should be stored in an environment with a temperature range between -10°C～+50°C, and charged regularly according to the table below with no more than 0.5 C (C-rate is a measure of the rate at which a battery is charged and discharged relative to its maximum capacity) to the SOC of 30% after a long time of storage.
| Storage environment temperature | Relative humidity of the storage environment | Storage time | SOC |
| Below -10℃ | / | Not allowed | / |
| -10~25℃ | 5%~70% | ≤ 12 months | 25%≤SOC≤60% |
| 25~35℃ | 5%~70% | ≤ 6 months | 25%≤SOC≤60% |
| 35~50℃ | 5%~70% | ≤ 3 months | 25%≤SOC≤60% |
| Above 50℃ | / | Not allowed | / |
NOTICE |
Damage to the system due to under voltages
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