Grevault, a prominent subsidiary under the umbrella of the esteemed Huntkey Group, has emerged as a trailblazer in the realm of digital intelligent monitoring solutions, revolutionizing the landscape of battery energy storage system manufacturing on a global scale. The company's commitment to excellence is evident across various facets of its operations, including independent design, cutting-edge research and development initiatives, and advanced manufacturing technologies. Distinguished by its leadership position among battery energy storage system manufacturers worldwide, Grevault is at the forefront of innovation. The company's diverse range of products encompasses household energy storage systems, industrial and commercial energy storage solutions, photovoltaic power stations, charging piles, and power supplies for new energy vehicles. Grevault household energy storage systems represent a pinnacle of technological sophistication, providing end-users with intelligent solutions to optimize energy consumption. These systems not only enhance energy efficiency but also empower consumers to actively engage in sustainable living practices, aligning with the global push towards cleaner and greener energy alternatives. In the sphere of industrial and commercial energy storage, Grevault delivers robust and scalable solutions tailored to meet the unique energy demands of businesses. These systems contribute to both cost savings and environmental sustainability, positioning Grevault as a trusted partner for enterprises seeking to embrace clean energy solutions. The foray into photovoltaic power stations underscores Grevault's commitment to harnessing solar energy for large-scale electricity generation. Leveraging cutting-edge technology, these power stations maximize energy output, reducing dependence on conventional power sources and mitigating the environmental impact associated with traditional energy production methods. Grevault's contribution to the growth of electric vehicles is evident in its development of efficient charging piles. As the world increasingly embraces electric mobility, Grevault's charging infrastructure plays a pivotal role in supporting the widespread adoption of electric vehicles, reducing reliance on fossil fuels, and fostering sustainable transportation alternatives. Furthermore, Grevault extends its commitment to sustainable transportation through the development of power supplies for new energy vehicles. By providing advanced and reliable power solutions, Grevault contributes significantly to shaping the future of clean and sustainable mobility. Company website: https://www.huntkeyenergystorage.com

1. 丨
Energy Storage System Products and Solutions

2. 1/ About Us
2/ R&D Strength
3/ Corporation Advantage
4/ Product List
5/ Project Case
C O N T E N T S
丨

3. Established in 1995
400+ R&D Engineers
Base in Shenzhen
丨
About Us
3 Domestic Factories
Shenzhen + Heyuan + Hefei
3 Branch Offices
USA + Japan + Taiwan, China
2 Overseas factories
Brazil + Vietnam
Certification
Branches
Corporation Scale
15000+ employees
provides digital intelligent
monitoring of the whole life cycle.
dedicated to independent design,
R&D, manufacture of household
energy storage systems,
industrial and commercial
energy storage systems, PV
power plants, charging piles and
On-board power supply for new
energy vehicles.
With a global vision and
innovative ideas, we strive to
make contributions to global
clean energy.
Huntkey
Factory in Shenzhen
Factory in Heyuan
Factory in Hefei
Power Sources
Manufacturer Association
China Electric Vehicle Charging
Technology and Industry Alliance

4. Established in 1995
丨
provides digital intelligent monitoring of the
whole life cycle. dedicated to independent
design, R&D, manufacture of household
energy storage systems, industrial and
commercial energy storage systems, PV
power plants, charging piles and on-board
power supplies for new energy vehicles.
With a global vision and innovative ideas, we
strive to make contributions to global clean
energy.
Huntkey
Factory in Shenzhen Factory in Heyuan Factory in Hefei
About Us
Corporation Scale
15000+
employees
Based in Shenzhen
3 Domestic Factories
Shenzhen + Heyuan + Hefei
3 Branch Offices
USA + Japan +
Taiwan, China
2 Overseas factories
Brazil + Vietnam
Branches Certification
Power Sources
Manufacturer Association
China Electric Vehicle Charging
Technology and Industry Alliance
400+
R&D Engineers

5. • Independently generates
and supplies electricity
• No dependence on
external power supply
• Avoid unstable power
supply caused by war,
natural disasters,
external power supply
system failure, energy
shortage, etc.
• Carbon Neutral
• eco-friendly
• Renewable Energy
• PV, Wind Energy
• Peak shaving and valley
reduction
• Electricity storage
• Efficient use of energy to
enhance power supply
security
• Portable Energy Storage
• Meeting Outdoor Power
Needs
Independent Green Storable Portable
To provide independent, green, storable and portable micro-power
supply system for households.
丨

6. Established in 2008, the
R&D lab focuses on R&D
design verification, new
materials, experimental
technology application,
product function test, BMS
system verification,
software process
verification test, high-
voltage electrical stability
test, etc.
15 years of
experience in
R&D
丨
R&D Strength
High-voltage main
control template
Smart Capture
Board
BMS for 48V
Household Storage
Terminal Control
Module
Thermal Management
Simulation Experiment
R&D design
Certification
New Material
Applications
Experimental
Technology
Applications
Product Function
Test
Environmental test Lab Safety Certification Lab
Production Compli
ance Certification
• R&D Management Capability
• Complete Test Equipment
Electrical Performance Lab

7. 丨
System Design
R&D
Center
Inverter power supply
PV
EMS
BMS
Structure
Test & Certification
Electro Magnetic Compatibility (EMC)
Inverter
PV Charging
Solar Panel
Energy Management
Battery Management
Battery
Structure Design
Wire Harness and Thermal Simulation
Black-Box and White-Box Test
Certification
• R&D Group

8. 丨
Corporation Advantage
• Technical Support
• Inverter Matching
01
02
03 Professional after-sales team, closed-loop
improvement for possible problems
Improvement
Cooperate with customers for system testing to
accelerate their R&D progress
Test
Recommend the most suitable products to
customers based on industry experience
Program
Provide the latest technological
solutions when technology advances
Iteration
04

9. 丨
• Quality Control - Intelligent Quality Management
Collect and trace the quality data throughout
the life cycle (material - production process -
finished product - shipping - client side -
market side - user side)
Intelligent quality
tracing system
Intelligent quality data alerting
and decision making
Intelligent quality
closed-loop system
1. realize digital and intelligent closed-loop
management of problems (task reminder,
escalation processing)
2. 2. Establish a case base of lessons learned
(traceability, query, analysis, review).
1. Open the end-to-end data interconnection and
establish a big data information management
platform.
2. 2. Use big data and statistical tools to conduct
intelligent analysis and early warning of quality
data, and realize intelligent decision-making
and preventive control of quality problems.
Digital Intelligent Monitoring of
the Whole Life Cycle

10. Case Battery
48/51.2V-3U
Household Wall-mounted
Battery
51.2V
Blade Wall-mounted
Battery
51.2V
High voltage
stacked battery
25KWH
Trolley power
2KW+5KWH
Outdoor C&I energy
storage system
172KWH
Outdoor high-voltage
Energy Storage
All-in-one Machine
15KW+20KWH
Portable Energy Storage
2.5KW+3KWH
Solar Panel
100W/200W
丨
Product List • Adopt the original
packaging of
brand-new A-
grade cells
• Provide full-cycle
warranty service
• Applicable to
multiple usage
scenarios
• Leave room for
multi-dimensional
product upgrades
Automotive-grade
cell adaptation
standard, higher
performance, longer
life

11. 丨
• Solar Panel Series-100W/200W
• Full power, no false label
• Impact resistance
• Bendable
• Lightweight (2.5kg(100W)/4.5kg(200W))
• High conversion efficiency (≥23%)
• Water resistance (IP67)
• Dimension （L*W*Hmm）
(1235*540*3 (100W, expanded), 2364*540*3 (200W, expanded）)
• Compatible with various energy storage charging

12. 丨
• Portable Energy Storage—HKE2500A/HKE3000A
Model
HKE2500A/
HKE3000A
HKE2500A/
HKE3000A*2
HKE2500A/
HKE3000A*3
HKE2500A/
HKE3000A*4
HKE2500A/
HKE3000A*5
HKE2500A/
HKE3000A*6
System Schematic
Battery Capacity 3.1KWh 6.2KWh 9.3KWh 12.4KWh 15.5KWh 18.6KWh
Battery Type LMFP
Cycling Life 3000 cycles（80% left after 3000 cycles）
AC Input 120V/15A (US Standard )
AC charge time 2.5 hours 3.8 hours 5.6 hours 7.5 hours 9.4 hours 11.3 hours
DC Charge Power Max 1400W，Solar charging support（With MPPT, chargeable by weak light），Support car charging and wind power charging
DC Charge Time 2.8 hours 4.7 hours 7 hours 9.3 hours 11.7 hours 14 hours
AC+DC Charge Time 2 hours 3.4 hours 4.8 hours 6.2 hours 7.6 hours 8.6 hours
Vehicle charger
discharge
12.6V10A，Support for inflatable pump
AC discharge 4*120V/20A,2400W/ Max 5000W
USB-A discharge 5V/2.4A 5V/2.4A 5V/2.4A 5V/2.4A 5V/2.4A 5V/2.4A
QC3.0 2*QC3.0 3*QC3.0 4*QC3.0 5*QC3.0 6*QC3.0 7*QC3.0
USB-C discharge 3*PD100W 4*PD100W 5*PD100W 6*PD100W 7*PD100W 8*PD100W
UPS function With UPS function, the switching time is less than 20mS
LED 1*3W 2*3W 3*3W 4*3W 5*3W 6*3W
Weight
（Mainframe/Capacity
Pack）
9kg /29kg 9kg /29kg *2 9kg /29kg*3 9kg /29kg*4 9kg /29kg *5 9kg /29kg *6
Dimension
（L*W*Hmm）
448*285*463 448*285*687 448*285*938 448*285*1189 448*285*1440 448*285*1691
Certification RoHS, SDS, FCC, UL1642, ICES, NRCAN, UN38.3, CP65, CEC, DOE, IEC62133, TSCA, IEC62368, UL2743, UL1973
Operating temperature -20~40℃
Cooling method Natural
Altitude ≤3000m

13. 丨
Compact modular design, 3U height
Supports up to 32 parallel
connections
Easy expansion of multi-product
category design
Reserved for OTA upgrade interface
(module optional), upgrade through
the background APP
• Case Battery-48V/51.2V
Product Features
Model RACK-48100 RACK-M5110
Nominal voltage 48V(15series) 51.2V(16series)
Capacity 100Ah
Battery energy 4800Wh 5120Wh
Resistance（AC） ≤30mΩ
Cycling life
≥5000 cycles @ 80% DOD, 25℃, 0.5C
≥4000 cycles @ 80% DOD, 40℃, 0.5C
Design life ≥10 years
Charge Voltage 56.0V±0.5V 57.6V±0.5V
Max operating current 100A
Discharge cut-off voltage 43V±0.2V 45V±0.2V
Operating temperature
Discharge temperature
Charge: 0℃~60℃
Discharge: -20℃~60℃
Storage temperature -40℃~55℃ @ 60%±25% relative humidity
Dimension
（L*W*Hmm）
133 x442 x400mm
Weight 41kg 43kg
Communication
RS232-PC,RS485(B)-PC
RS485(A)-Inverter,Canbus-Inverter
Number of parallel
connections
Supports up to 32 batteries in parallel
Certification UN38.3,MSDS,UL1973(Cell),IEC62619(Cell)

14. 丨
• Stacked case battery
Model RACK- 48200 RACK-48300 RACK-48400 RACK-48500 RACK-48600
Nominal voltage 48V/51.2V(optional)
Capacity 200Ah 300Ah 400Ah 500Ah 600Ah
Battery energy 10KWH 15KWH 20KWH 25KWH 30KWH
Resistance（AC） ≤60mΩ
Cycling life
≥5000cycles@80%DOD,25℃，0.5C
≥4000cycles@80%DOD,40℃，0.5C
Design life ≥10 years
Charge Voltage 53V ±0.5V(15S);56.0V±0.5V(16S)
Max operating
current
150A 200A 300A 300A 300A
Discharge cut-off
voltage
45V±1.0V(15S);48V±1.0V(16S);
Operating
temperature
Charge: 0℃~60℃
Discharge: -20℃~60℃
Storage
temperature
-40℃~55℃ @ 60%±25% relative humidity
Dimension
（L*W*Hmm）
483*460*186 483*460*372 483*460*558 483*460*744 483 * 460* 930
Weight 110kg 165kg 230kg 285kg 340kg
Communication
RS232-PC,RS485(B)-PC
RS485(A)-Inverter,Canbus-Inverter
Number of parallel
connections
Supports up to 6 batteries in parallel in a single cluster
Certification UN38.3, MSDS, UL1973(Cell), IEC62619(Cell)

15. 丨
• Household Wall-mounted Battery-51.2V
Usage Scenarios
Model PW-M10.2
Nominal voltage 51.2V(16series)
Capacity 200Ah
Battery energy 10240Wh
Resistance（AC） ≤30mΩ
Cycling life
≥5000 cycles @ 80% DOD, 25℃, 0.5C
≥4000 cycles @ 80% DOD, 40℃, 0.5C
Design life ≥10 years
Charge Voltage 56.0V±0.5V
Max operating current 100A
Discharge cut-off
voltage
45V±0.2V
Operating
temperature
Charge: 0℃~60℃
Discharge:-20℃~60℃
Storage temperature -40℃~55℃ @ 60%±25% relative humidity
Dimension
（L*W*Hmm）
762 x520x148mm
Weight 90kg
Communication
RS232-PC,RS485(B)-PC
RS485(A)-Inverter,Canbus-Inverter
Number of parallel
connections
Supports up to 6 batteries in parallel
Certification UN38.3,MSDS,UL1973(Cell),IEC62619(Cell)

16. 丨
• Blade Wall-mounted Battery-51.2V
Usage Scenarios
Model PW-M6.66
Nominal voltage 51.2V(16series)
Capacity 130Ah
Battery energy 6660Wh
Resistance（AC） ≤30mΩ
Cycling life
≥5000 cycles @ 80% DOD, 25℃, 0.5C
≥4000 cycles @ 80% DOD, 40℃, 0.5C
Design life ≥10 years
Charge Voltage 56.0V±0.5V
Max operating current 120A
Discharge cut-off
voltage
45V±0.2V
Operating
temperature
Charge: 0℃~60℃
Discharge:-20℃~60℃
Storage
temperature
-40℃~55℃ @ 60%±25% relative humidity
Dimension
（L*W*Hmm）
141x436 x1078mm
Weight 65kg
Communication
RS232-PC, RS485(B)-PC
RS485(A)-Inverter, Canbus-Inverter
Number of parallel
connections
Supports up to 6 batteries in parallel
Certification UN38.3,MSDS,UL1973(Cell),IEC62619(Cell)

17. 丨
Model Box-H10000W Box-H15000W Box-H20000W Box-H25000W
Nominal voltage 204.8V(64series) 307.2V(96series) 409.6V(128series) 512V(160series)
Capacity 50Ah 50Ah 50Ah 50Ah
Battery energy 10KWh 15KWh 20KWh 25KWh
Resistance（AC） ≤80mΩ ≤100mΩ ≤120mΩ ≤150mΩ
Cycling life
≥5000cycles@80%DOD,25℃，0.5C
≥4000cycles@80%DOD,40℃，0.5C
Design life ≥10 years
Charge voltage 228V±2V 340V±2V 450V±2V 560V±2V
Max operating
current
50A
Discharge cut-off
voltage
180V±2V 270V±2V 350V±2V 440V±2V
Operating
temperature
Charge: 0℃~60℃
Discharge: -20℃~60℃
Storage
temperature
-40℃~55℃ @ 60%±25% relative humidity
Dimension
（L*W*Hmm）
680*485*930 680*485*1265 680*485*1600 680*485*1800
Weight Approx:130kg Approx:180kg Approx:230kg Approx:280kg
Communication
RS232-PC, RS485(B)-PC
RS485(A)-Inverter, Canbus-Inverter
Certification UN38.3,MSDS,UL1973(Cell),IEC62619(Cell)
• High voltage stacked battery-25KWh
Usage Scenarios

18. 丨
Model PW5000
Battery Input
Battery type LFP
Rated roltage[V] 48
Input voltage range[V] 37-60
Battery energy
[Wh]
4800
Rated charge current [A] 25A
Rated discharge current
[A]
45A
Max discharge current[A] 80A
Cycling life 2000
AC Input
charge power[W] 1800 1800
Rated voltage [Vac] 110 220
Input voltage range [V] 90-140 18
0-260
Frequency [Hz] 60 50
Frequency range [Hz] 55-65 45-55
Power factor (@max. Charge power) >0 .99 >0 .99
DC Input
Maximum input power of car charge [W] 120
Maximum input power of solar charge [W] 1000
Input voltage range [V] 10~53
Maximum input power of solar charge [A] 10
AC Output
Rated output power[W] 2000
Max power[W] 5000
Rated voltage [Vac] 110 220
Rated frequency [Hz] 60 50
Maximum current[A] 45 22.7
Rated output current [A] 18 9
Harmonic Rate < 1 .5%
DC Output
USB-A (x1) 12 .5w, 5V, 2 .5A
Fast charge 3 .0 (x2) 每个28w , (5V, 9V, 12V), 2 .4A
USB-TypeC (x2) 每个100w , (5V, 9V, 12V, 20V), 5A
Maximum output power of cigarette lighter
and DC port
120w
Cigarette lighter (x1) 120w, 12V, 10A
DC port (x2) 120w, 12V, 10A
• Trolley power 2KW+5KWH

19. 丨
Model ESS-H-I15B20
Specification 15KW+20KWH
Battery parameters
Battery input voltage range 150-600V
Battery energy 20000WH
Maximum discharge current 50A
Control Strategy BMS Adaptive
PV input parameters
Maximum power 19500W
MPPT Voltage Range 150-850V
MPPT Input Current 26A+20A
Number of MPPT 2
AC Parameters
Rated power 15KW
Rated output current 22.8A
Rated output voltage 360-400V
Output frequency 50-60HZ
Grid Type 3W+N+PE
Overload capacity 110%, 60S/120%, 30s/150%, 10s
Efficiency
Maximum efficiency 97%
System Parameters
Operating temperature -20 ~ 60°C
Operating humidity 0-95%
Dimensions
(H * W * D m m )
630*485*1800
Weight 300KG
Communication CANBUS, RS485, WIFI/4G
• The priority of grid, PV or battery-powered can be set;
• Built-in timer for switching operation in multiple modes;
• Support WIFI/4G multiple communication methods,
check system operation status anytime and anywhere;
• IP65 rainproof, environment friendly, extreme quiet.
• Outdoor high-voltage Energy
Storage All-in-one Machine
Product Features

20. 丨
• Outdoor C&I energy storage system
Safe and Reliable Flexible and Matching Intelligent Management
Air cooling Liquid cooling

21. 丨
• Outdoor C&I energy storage system
Safe and Reliable Flexible and Matching Intelligent Management
A i r c o o l i n g
Liquid cooling
Mall Office Building
Hospital Factory
Usage Scenarios

22. 丨
Model WeArk2.0-30P WeArk2.0-60P WeArk2.0-100P
Battery parameters
Cell Type LFP-280Ah LFP-280Ah LFP-280Ah
Module Model IP20S IP20S IP20S
SystemConfiguration 1P100S~1P160S 1P240S 1P240S
Battery Capacity（BOL） 89kWh~143kWh 215kWh 215kWh
Battery voltage range 280V-576V 672V-864V 672V-864V
AC on-grid parameters
Grid Type 3P4W 3P4W 3P4W
Rated charge/discharge
power
30KW 60kW 100kW
Rated grid voltage AC400V AC400V AC400V
Grid Voltage range -15%~+15% -15%~+15% -15%~+15%
Rated grid frequency 50Hz 50Hz 50Hz
Frequency range
±5Hz ±5Hz ±5Hz
Rated current 43A 86A 172A
Power Factor 0.8 0.8 0.8
Output Harmonics（
Rated power）
≤3% ≤3% ≤3%
Photovoltaic side parameters (Optional)
Maximum input module
power
30KW 60kW/120KW 60kW/120KW
MPPT Voltage Range 200V-850V 200V-850V 200V-850V
Number of MPPT paths 1 1/2 1/2
Number of PV input
channels
1 1/2 1/2
Maximum input current 100A 100A/200A 100A/200A
Model WeArk2.0-30P WeArk2.0-60P WeArk2.0-100P
General parameters
Dimension (W*H*D) 1500*2100*1230mm 1900*2100*1230mm 1900*2100*1230mm
Max Weight 2000kg 2500kg 2500kg
IP Protection Rating IP54 IP54 IP54
Seismic Intensity Rating 8 degree（IEC60980） 8 degree（IEC60980） 8 degree（IEC60980）
Operating temperature【
1】
-20℃～50℃ -20℃～50℃ -20℃～50℃
Relative Humidity 0-75% 0-75% 0-75%
Altitude【2】
＜2000m ＜2000m ＜2000m
Cooling method Forced air cooling Forced air cooling Forced air cooling
Noise ≤75dB ≤75dB ≤75dB
System efficiency ≥85% ≥85% ≥85%
Cycling life 8years or＞3000cycles 8years or＞3000cycles 8years or＞3000cycles
Fire fighting System Automatic fire
extinguishing
Automatic fire
extinguishing
Automatic fire
extinguishing
Fire extinguishing media FM200 FM200 FM200
Communication Interface RS485、Ethernet RS485、Ethernet RS485、Ethernet
Communication protocols Modbus RTU、Modbus
TCP/IP
Modbus RTU、Modbus
TCP/IP
Modbus RTU、Modbus
TCP/IP
Warranty 5 years 5 years 5 years
(Following the left table)
◎ Notes：
【1】The system will be derated when the ambient temperature exceeds 45℃.
【2】The system will be derated when the altitude is between 2000 and
3000m.
◎Standard Certification：
【2】Cell：GB/T 36276、IEC 62619、UL1973、UL9540A
【3】PCS: GB/T 34120、G99

23. 屋顶1.2MW光伏板
500KW逆变器光伏储能
北美20KWH
配16KW
丨
Project Case
工商用项目（深圳工业园案例） 户用储能
南非20KWH
配16KW

24. 丨
地址：
深圳市龙岗区坂田街道坂澜大道101号航嘉工业园