70kWh High Voltage Lifepo4 Battery For Solar System
The 70kwh battery pack is an advanced lithium iron phosphate solar solution, suitable for on-grid, off-grid, and grid backup systems. It includes one BMS module, seven lifepo4 battery modules, and one strong base. This system has high charging and discharging efficiency and a long service life. It is a trusted backup power and uninterruptible power supply for homes, businesses, industries, communities, farms, construction sites, and more. 51.2V 70kwh battery also available.
- Brand: Delong Energy
 - Sample: Available For Test
 - Service: 10 Years Warranty
 - Support: OEM, ODM, OBM, Customized
 - Certificates: CE, UL, MSDS, IEC, UN38.3, ISO, etc.
 Price: Click The Button Below To Get A Discount Price.
70kWh 716.8V Lifepo4 Battery Energy Storage System
Eco-friendly & Quality Cells
The 70kwh battery is eco-friendly and will not harm the environment or human health. The battery cells come from well-known brands like BYD and CATL, and they have passed multiple strict tests. Whether in safety, discharge performance, or cycle life, the quality is well guaranteed.

High Voltage Lithium Battery
BCU + BMU Guaranteed Safety and Performance
Each module has a capacity of 10.24kwh, with an output of 102.4V 100Ah. Its operating voltage range is 672-784V, and the charge-discharge current is 45A/0.3C.
These modules use a BCU to monitor the operating status of every single cell, which helps prevent issues like overcharging, over-discharging, overheating, and short circuits.
The BMU unit on the top connects to each BCU, forming an intelligent BMS. This setup ensures the entire system operates safely and with high efficiency.

High voltage control box BMU BCU
Work with Inverter/MPPT Controller
On the back of each module are RS485, CAN, and other ports. You can connect it in parallel with other modules to reach 30kwh, 40kwh, 50kwh, 60kwh, or 70kwh. It has strong compatibility and works well with most mainstream inverters to form a solar system. If you are unsure about compatibility with your inverter or MPPT controller, please contact us for a solution.

Stackable High Voltage Battery Pack

High Voltage Lithium Battery Connect with Inverter
Besides the connection ports, there is also a display screen. This screen or app lets you view the status of all the batteries. It helps you better control and operate the system.

High Voltage Lithium Battery Connect with Inverter
High efficiency, Wide Application
The 70kwh battery system has a low self-discharge rate and supports deep discharge. Its round-trip efficiency is over 93%. The system has a service life of up to 10 years, ensuring stable power supply and long duration.
If you are in a remote area, a place with unstable power, or where electricity costs are high, this system can increase your energy independence. It helps lower your electricity bills and ensures your project runs stably.

High Voltage Solar Battery Grid and off-grid use

High Voltage Solar Battery Application Scenarios
IP20 Protection Rating
The battery has an IP20 protection rating. We recommend installing it indoors or in a sheltered location. If you need an outdoor installation, you can consider Delong’s cabinet-style high-voltage battery. It comes pre-installed with an inverter and cooling system, supporting plug-and-play for a more convenient experience.

80kwh High Voltage Lithium Battery Use

114kwh -192kwh Energy Storage System
These batteries have passed international certifications and can be installed and used in many countries. Contact us for wholesale pricing.
Besides the high-voltage 70kwh battery, we also offer the 51.2V 70kwh stackable battery. Of course, for any other specifications, please contact our team so we can discuss together.
Why Choose Delong As Your Reliable Supplier?
Delong has been in the lithium battery industry for 14 years, with rich experience in design and manufacturing. We have launched several energy storage solutions that users like. These solutions have also helped solve power supply issues in many areas. At the same time, our products are popular with many distributors, traders, wholesalers, and equipment manufacturers. OEM and ODM services are available.

Delong Lithium Battery Installation Cases
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Technical Data
| Battery Module | 70kWh (HV32 Series) | 
|---|---|
| Battery Module Voltage | 102.4V | 
| Battery Module Capacity | 100Ah | 
| Number of Modules Supported | 7 | 
| Nominal Voltage | 716.8V | 
| Operating Voltage | 672V~784V | 
| Energy Capacity | 71.68kWh | 
| Dimensions (L*D*H) | 780×520×1415mm | 
| Weight | ≈797Kg | 
| Standard Charge / Discharge Current | 45A/0.3C | 
| Battery Cell Type | LiFePO4 Cells (Lithium Iron Phosphate Cell) | 
| Enclosure Protection Rating | IP20 | 
| Round-trip Efficiency | ≥95% | 
| Applications | ON Grid /ON Grid +Backup /OFF Grid | 
| Communication Mode | RS485 / CAN | 
| BMS Monitoring Parameters | SoC, System Voltage, Current, Cell Voltage, Cell Temperature | 
| Working Temperature | 0°C~50°C Charge / -10°C~50°C Discharge | 
| The Shelf Temperature | 20℃-60℃ | 
| Humidity | 5-95%(RH) | 
| Design Life Cycle | 10+Years (25°℃/77°F) | 
| Cycle Life | ≥6500 at 25°℃ | 
PDF Download
Datasheet:
70kwh 700V High Voltage Stackable Lifepo4 Battery Pack Datasheet Delong
70kwh 51.2V Low Voltage Stackable Home Battery Pack Datasheet Delong
User Manual:
HV32-10 & HV32-15 High Voltage Battery System User Manual 2025
FAQ
How to Install the Delong 70kwh Battery?
The video introduces how to install an 70 kWh lithium battery. Click to Youtube.













	
						
	
						
	
						
	
						
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