The Voltpro Energy 12V 314Ah LiFePO4 Battery is a high-capacity lithium energy storage solution designed for solar systems, inverter backup, UPS systems, off-grid applications and demanding DC power requirements
It is built with EVE A-Grade LiFePO4 cells featuring an exceptionally low 0
17 IR and a rated cycle life of up to 8000+ cycles under suitable operating conditions
The battery is equipped with a JK Smart B2A8S20P BMS, offering 200A continuous current capability, up
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Product Description
Product Description
The Voltpro Energy 12V 314Ah LiFePO4 Battery is a high-capacity lithium energy storage solution designed for solar systems, inverter backup, UPS systems, off-grid applications and demanding DC power requirements. It is built with EVE A-Grade LiFePO4 cells featuring an exceptionally low 0.17 IR and a rated cycle life of up to 8000+ cycles under suitable operating conditions.
The battery is equipped with a JK Smart B2A8S20P BMS, offering 200A continuous current capability, up to 350A peak discharge and 2A active cell balancing. A JK 3.2-inch LCD Display provides convenient access to important battery information, while robust 200A terminals provide reliable high-current connections.
Product Overview
The Voltpro Energy 12V 314Ah LiFePO4 Battery is designed for users who require high energy capacity, long cycle life and intelligent battery management in a 12V battery system.
With a nominal voltage of 12.8V and a capacity of 314Ah, the battery provides approximately 4.02kWh of nominal energy storage. This makes it suitable for extended backup requirements and larger residential, commercial and off-grid applications.
The combination of EVE A-Grade cells and JK Smart BMS technology provides a high-performance battery platform capable of supporting demanding loads when correctly installed and configured.
Key Features
12.8V Nominal Voltage
314Ah High Capacity
Approx. 4.02kWh Nominal Energy
EVE A-Grade LiFePO4 Cells
0.17 IR Cell Resistance
8000+ Cycle Life
JK Smart B2A8S20P BMS
200A Continuous Current
350A Peak Discharge
2A Active Cell Balancing
JK 3.2-Inch LCD Display
200A High-Current Battery Terminals
Intelligent Battery Monitoring
Advanced Cell Protection
Suitable for Solar & Inverter Systems
Suitable for Backup & Off-Grid Applications
Designed for Long-Term Energy Storage
Technical Specifications
Specification Details
Product Type LiFePO4 Lithium Battery
Nominal Voltage 12.8V
Battery Capacity 314Ah
Nominal Energy Approx. 4.02kWh
Battery Chemistry LiFePO4
Cell Brand EVE
Cell Grade A Grade
Cell IR Approx. 0.17 mΩ*
Cycle Life Up to 8000+ Cycles*
BMS Brand JK Smart BMS
BMS Model B2A8S20P
Continuous Current Up to 200A
Peak Discharge Current Up to 350A
Active Balancing 2A
LCD Display JK 3.2-Inch LCD
Main Terminals 200A
Battery Configuration 4S LiFePO4
Recommended Use Solar, Inverter, UPS, Backup & Off-Grid
*Cell resistance and cycle-life figures are dependent on cell test conditions, temperature, discharge rate, depth of discharge and other operating parameters.
EVE A-Grade LiFePO4 Cells
The battery is built using EVE A-Grade LiFePO4 cells selected for high-quality energy storage applications.
The cells feature an extremely low stated 0.17 IR, indicating low internal resistance under the applicable measurement conditions. Lower internal resistance can contribute to improved current delivery and reduced internal losses.
The cells are specified for 8000+ cycles, making this battery suitable for applications requiring frequent charging and discharging over an extended service period.
Cell Advantages
EVE A-Grade Cell Quality
Low Internal Resistance
High Energy Density
Stable LiFePO4 Chemistry
Long Cycle Life
Suitable for Deep-Cycle Applications
Excellent for Solar Energy Storage
JK Smart BMS – B2A8S20P
The battery uses a JK Smart B2A8S20P BMS, providing intelligent monitoring and protection for the battery pack.
The BMS supports up to 200A continuous current and up to 350A peak discharge, making it suitable for high-power applications when the complete battery system—including cells, cables, terminals and inverter—is appropriately designed.
BMS Specifications
Model: JK B2A8S20P
Continuous Current: 200A
Peak Discharge: 350A
Active Balancing: 2A
Cell Voltage Monitoring
Overcharge Protection
Over-Discharge Protection
Over-Current Protection
Short-Circuit Protection
Temperature Monitoring
Active Cell Balancing
2A Active Balancing
The JK Smart BMS provides 2A active balancing.
Active balancing helps redistribute energy between cells rather than simply dissipating excess energy as heat. This helps maintain better cell voltage consistency, particularly during charging and high-state-of-charge operation.
For a high-capacity battery such as this 314Ah pack, active balancing can be particularly useful in maintaining cell consistency over repeated cycles.
JK 3.2-Inch LCD Display
A JK 3.2-inch LCD Display is included for convenient battery monitoring.
The display can provide important battery information depending on the connected JK BMS configuration, such as:
Battery Voltage
Battery Current
Battery State of Charge
Individual Cell Voltages
Charging Status
Discharging Status
Cell Balance Information
Battery Temperature
BMS Status and Protection Information
This allows users to monitor the battery without relying entirely on a mobile application.
200A High-Current Terminals
The battery is equipped with 200A-rated terminals designed for high-current battery connections.
Properly sized terminals and cables are important for high-power applications because they help provide secure electrical connections and reduce connection resistance.
For installations approaching the battery's higher current capabilities, appropriate cable sizing, fusing and connection hardware should always be used.
Battery Energy Capacity
The battery provides:
12.8V × 314Ah ≈ 4,019Wh
So the battery has approximately 4.02kWh of nominal stored energy.
Actual usable energy depends on discharge depth, BMS settings, inverter efficiency, load characteristics, temperature and battery condition.
Approximate Backup Examples
The following are approximate theoretical runtime calculations based on the battery's nominal 4.02kWh energy capacity. Actual backup will be lower depending on inverter efficiency and usable battery capacity.
Load Approx. Theoretical Backup
100W ~40 Hours
250W ~16 Hours
500W ~8 Hours
750W ~5.3 Hours
1000W ~4 Hours
1500W ~2.7 Hours
2000W ~2 Hours
2500W ~1.6 Hours
3000W ~1.34 Hours
Note: Actual backup time varies according to inverter efficiency, battery usable capacity, load power factor, temperature and BMS limits.
What Can It Run?
Depending on the inverter and total load, this battery can be used for a wide range of household and commercial backup requirements.
Typical Applications
LED Lights
Ceiling Fans
LED TV
Wi-Fi Router
CCTV System
Computers
Laptops
Refrigerators
Deep Freezers
Internet & Networking Equipment
Solar Inverters
UPS Systems
DC Appliances
Emergency Backup Systems
Off-Grid Solar Systems
For appliances with motors or compressors, such as refrigerators and pumps, the inverter must be capable of handling the appliance's startup/surge current.
Recommended Applications
Solar Energy Storage
Ideal for storing solar energy during the day and using it during nighttime or periods of low solar generation.
Home Backup
The approximately 4.02kWh capacity makes it suitable for essential household backup loads.
Inverter Systems
Can be integrated with a suitable 12V-compatible inverter.
Off-Grid Systems
Suitable for remote locations and off-grid solar installations where reliable energy storage is required.
UPS & Emergency Backup
Can provide extended backup for compatible UPS systems and critical equipment.
Important Installation Note
Use a LiFePO4-compatible charger or inverter/charger with appropriate charging parameters for a 4S LiFePO4 battery. For high-current applications, cable size, fuses/breakers, connectors and inverter ratings should be selected according to the actual load and installation requirements.
Frequently Asked Questions
The battery has a 12.8V nominal voltage, making it suitable for compatible 12V LiFePO4 inverter, solar and backup systems.
The battery has a rated capacity of 314Ah.
The battery provides approximately 4.02kWh (4,019Wh) of nominal energy.
The battery uses EVE A-Grade LiFePO4 cells.
The specified cell internal resistance is approximately 0.17 mΩ, subject to the applicable cell measurement conditions.
The cells are rated for 8000+ cycles under suitable operating conditions and manufacturer test conditions.
The battery uses a JK Smart B2A8S20P BMS.
The BMS supports up to 200A continuous current.
The specified peak discharge capability is up to 350A, depending on operating conditions and BMS settings.
The JK Smart BMS provides 2A active cell balancing.
Active balancing helps transfer energy between cells to improve cell voltage consistency, particularly during charging and high state-of-charge conditions.
Yes. The battery is equipped with a JK 3.2-inch LCD Display.
Depending on the BMS configuration, it can display information such as battery voltage, current, SOC, individual cell voltages, temperature, balancing status, charging/discharging status and protection information.
The battery uses Lithium Iron Phosphate (LiFePO4) chemistry.
Yes. LiFePO4 is widely used for solar energy storage, backup power and deep-cycle applications.
Yes, when connected to a compatible 12V LiFePO4 inverter with appropriate charging and discharge settings.
Yes. It can be used with a compatible solar inverter that supports 12V LiFePO4 battery systems.
Yes. With approximately 4.02kWh nominal capacity, it can provide extended backup for essential household loads.
Depending on inverter size and total load, it can support applications such as LED lights, fans, TVs, Wi-Fi routers, CCTV systems, computers, refrigerators and other compatible appliances.
Yes, provided the inverter can handle the refrigerator's starting/surge current as well as its normal running power.
Yes. Fans and LED lights are among the common applications for a battery of this capacity.
Yes. It can provide backup for computers, monitors, Wi-Fi routers, networking equipment and similar loads, subject to the inverter and total power requirements.
Based on nominal energy, approximately 8 hours theoretically. Actual backup will be lower depending on inverter efficiency, usable capacity and operating conditions.
The theoretical runtime is approximately 4 hours. Actual runtime depends on system efficiency and load characteristics.
The theoretical runtime is approximately 2.7 hours before accounting for inverter losses and other factors.
The theoretical runtime is approximately 2 hours. Actual backup will vary depending on the complete system.
The theoretical runtime is approximately 1.3 hours, although actual usable runtime will depend on inverter efficiency, battery condition and BMS limits.
Yes. The battery is equipped with 200A-rated terminals for high-current connections.
The 200A terminals provide robust connection points suitable for high-current battery applications when paired with correctly sized cables and protection devices.
Yes. The 200A continuous and 350A peak discharge specifications make it suitable for demanding applications when the battery cells, cables, terminals, inverter and protection system are appropriately sized.
Yes. The JK Smart BMS provides protection and monitoring functions including overcharge, over-discharge, over-current, short circuit and temperature-related protection, according to its configuration.
Yes. The JK Smart BMS can monitor individual cell voltages and provide this information through the compatible display/app interface.
Yes. The JK Smart BMS platform supports battery monitoring through compatible JK interfaces, including the installed LCD display.
The 12.8V LiFePO4 battery uses a 4S cell configuration, meaning four cell groups are connected in series.
Use a 12V/4S LiFePO4-compatible charger with charging parameters appropriate for LiFePO4 chemistry.
Yes, through a properly configured LiFePO4-compatible solar charge controller or compatible solar inverter.
Yes. Its high capacity and long cycle-life cells make it suitable for off-grid and backup energy-storage systems.
EVE A-Grade cells are selected for their consistent quality, stable electrical characteristics and suitability for high-quality energy-storage applications.
The battery should be installed by using appropriately sized DC cables, terminals, fuses/breakers and compatible charging equipment. High-current connections should be properly tightened and protected.
It combines EVE A-Grade 314Ah LiFePO4 cells, 0.17 mΩ specified IR, 8000+ cycle life, JK Smart B2A8S20P BMS, 200A continuous current, 350A peak discharge, 2A active balancing, 200A terminals and a JK 3.2-inch LCD display in a high-capacity 12V energy-storage solution.
