Product overview
Reliable performance without the guesswork.
Review the product details, specifications and support information below before ordering.
- Whole-home solar backup systems
- Residential hybrid solar installations
- Offices and commercial premises
- Shops and small businesses
- Off-grid homes
- Essential-load backup systems
- Solar systems in areas with frequent outages
- Commercial energy-storage installations
When paired with a correctly sized inverter and solar array, the battery can support appliances and equipment such as:
- 💡 Household and commercial lighting
- 📺 Televisions
- 📡 Wi-Fi and networking equipment
- 💻 Computers and laptops
- 🧊 Refrigerators and freezers
- 📹 CCTV and security equipment
- 🖨️ Office equipment
- 🏪 Shop and business equipment
- ⚙️ Selected pumps and motor-driven appliances
- 📱 Phones and other electronic devices
Actual backup duration depends on the connected load, inverter efficiency, battery settings and depth of discharge.
The Eastman ES51.2-230LP Lithium Battery is a high-capacity energy-storage solution designed for residential solar systems, commercial backup installations, hybrid systems and off-grid applications.
With a nominal voltage of 51.2V and a capacity of 230Ah, the battery provides approximately 11.7kWh of energy storage. Its LiFePO₄ lithium iron phosphate chemistry offers dependable performance, high efficiency and a long operating life compared with conventional lead-acid batteries.
The integrated display allows convenient monitoring, while CAN and RS485 communication support connection with compatible hybrid and off-grid inverters.
🔋 Key Features
- 11.7kWh energy-storage capacity
- 51.2V 230Ah battery rating
- Advanced LiFePO₄ lithium iron phosphate technology
- Designed for compatible 48V solar systems
- More than 4,000 cycles at 80% depth of discharge
- High efficiency of over 95%
- Integrated Battery Management System
- Front battery-monitoring display
- CAN and RS485 inverter communication
- Charging voltage of 58.4V
- Discharge cut-off voltage of 48V
- Wide operating temperature range
- Low-maintenance lithium technology
- Suitable for residential and commercial energy storage
- Warranty of approximately 5–10 years, depending on applicable terms and use
🧠 Integrated Battery Management System
The built-in Battery Management System helps monitor battery operation and provides protection against common electrical and operating risks, including:
- Overcharging
- Excessive discharge
- Overcurrent
- Short circuits
- High and low temperatures
- Cell-voltage imbalance
- Abnormal charging and discharging conditions
These protections help improve battery safety, reliability and service life.
⚡ High-Efficiency Energy Storage
With an efficiency rating of over 95%, the Eastman lithium battery is designed to minimise energy losses during charging and discharging.
This makes it suitable for solar systems where efficient use of stored energy is important, particularly in homes and businesses that rely heavily on battery backup.
✅ Benefits of LiFePO₄ Technology
- Longer service life than conventional lead-acid batteries
- High charging and discharging efficiency
- Greater usable energy capacity
- Reduced maintenance requirements
- Stable performance during repeated cycling
- Improved thermal and chemical stability
- Compact energy storage
- Lower long-term replacement costs
🔌 CAN & RS485 Communication
The battery supports CAN and RS485 communication, allowing compatible inverters to exchange important battery information such as:
- State of charge
- Battery voltage
- Operating status
- Charge and discharge limits
- Warning and protection conditions
Correct inverter communication settings should be configured during installation.
⚠️ Inverter Compatibility
Although the battery operates at 51.2V, it is designed for compatible systems commonly classified as 48V solar systems.
Before installation, confirm that the inverter supports:
- 51.2V LiFePO₄ batteries
- A charging voltage of approximately 58.4V
- A discharge cut-off compatible with 48V
- CAN or RS485 communication
- The correct Eastman battery protocol
- Suitable charge and discharge currents
- Correct cables, breakers and fuses
Professional installation by a qualified solar technician is recommended.
Technical details
Specifications
Specification Details
- Brand Eastman Solar
- Model ES51.2-230LP
- Battery Chemistry Lithium Iron Phosphate — LiFePO₄
- Energy Capacity 11.7kWh
- Nominal Voltage 51.2V
- Battery Capacity 230Ah
- System Type 48V low-voltage solar system
- Cycle Life More than 4,000 cycles at 80% DoD
- Efficiency More than 95%
- Charging Voltage 58.4V
- Discharge Cut-Off Voltage 48V
- Communication CAN / RS485
- Operating Temperature -10°C to 55°C
- Battery Management Integrated BMS
- Warranty Approximately 5–10 years, depending on use and warranty terms
- Application Solar storage, backup and hybrid systems
Questions and answers
Before you order
What is the battery’s energy-storage capacity?
The Eastman ES51.2-230LP provides approximately 11.7kWh of energy storage.
What is its voltage and capacity?
It is rated at 51.2V and 230Ah.
Is it a 5.12kWh battery?
No. This model is rated at 51.2V 230Ah, which corresponds to approximately 11.7kWh of energy storage.
What battery chemistry does it use?
It uses LiFePO₄ lithium iron phosphate technology.
How long is the cycle life?
The battery is rated for more than 4,000 cycles at 80% depth of discharge.
What is the battery efficiency?
The stated efficiency is greater than 95%.
Can it work with a 48V inverter?
Yes, provided the inverter supports 51.2V lithium batteries and the correct CAN or RS485 communication protocol.
Can it be used for whole-home backup?
Yes, depending on the inverter size, appliance consumption and required backup duration.
Can it be charged using solar panels?
Yes. It can be charged through a compatible hybrid or off-grid solar inverter.
What is the operating temperature range?
The stated operating range is approximately -10°C to 55°C.
How long is the warranty?
The stated warranty range is approximately 5–10 years, depending on usage conditions and the applicable supplier or manufacturer warranty terms.
Is professional installation recommended?
Yes. Proper installation ensures correct charging parameters, battery communication, protection and cable sizing.
Note: The correct title should say 51.2V 230Ah, not 5.12V 230Ah.
Not sure this is the right product?
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