Voltertech Co.,Limited
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Extended Capacity | 314Ah |
| Scalability | Series and Parallel Architecture for 24V 48V Systems |
| Smart BMS | Integrated Active Thermal and Voltage Protection |
| Payment Terms | L/C,T/T,Western Union |
| Cycle Endurance | 3000 Plus Deep Discharge Phases |
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Chassis Weighting | Optimized 28kg Build for Mobile Logistics |
| Nominal Voltage Class | 12.8V |
| Enclosure Integrity | IP65 Rated Waterproof Plastic Housing |
| Supply Ability | 5000 Units per Month |
| Listed Battery Energy | 4019Wh / Approx. 4.02kWh |
| Certification | MSDS , UN38.3 |
| Model Number | PB-4KWH-12.8V-Q |
| Brand Name | Voltertech |
| Place of Origin | China |
View Detail Information
Explore similar products
3.84kWh 25.6V 150Ah LiFePO4 Battery With IP67 ABS Case And Display
5.12kWh 25.6V 200Ah LiFePO4 Battery For Solar Emergency Backup
7.68kWh 25.6V 300Ah LiFePO4 Battery For Large 24V Energy Storage Systems
25.6V 100Ah IP65 Deep Cycle LiFePO4 Lithium Battery 100A Discharge For Power
Product Specification
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam | Extended Capacity | 314Ah |
| Scalability | Series and Parallel Architecture for 24V 48V Systems | Smart BMS | Integrated Active Thermal and Voltage Protection |
| Payment Terms | L/C,T/T,Western Union | Cycle Endurance | 3000 Plus Deep Discharge Phases |
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production | Chassis Weighting | Optimized 28kg Build for Mobile Logistics |
| Nominal Voltage Class | 12.8V | Enclosure Integrity | IP65 Rated Waterproof Plastic Housing |
| Supply Ability | 5000 Units per Month | Listed Battery Energy | 4019Wh / Approx. 4.02kWh |
| Certification | MSDS , UN38.3 | Model Number | PB-4KWH-12.8V-Q |
| Brand Name | Voltertech | Place of Origin | China |
| High Light | 12.8V 314Ah LiFePO4 Battery ，4.02kWh 314Ah LiFePO4 Battery | ||
4.02kWh 12.8V 314Ah LiFePO4 Battery for Long Duration Backup Power
This 12.8V 314Ah LiFePO4 battery has a listed nominal energy of 4019Wh, commonly expressed as approximately 4.02kWh. It is designed for compatible backup, solar-storage, inverter and UPS projects that require a larger energy reserve within a 12V-class battery system.
Compared with a 100Ah, 200Ah or 280Ah battery at the same nominal voltage, the 314Ah configuration provides a higher stored-energy capacity. This can support a longer operating target when the load and system settings remain comparable.
Layer 1: Essential Continuous Loads
List equipment that must operate throughout the backup period, such as communication and security devices.
Layer 2: Intermittent Loads
Estimate the duty time of refrigeration, pumps or other equipment that switches on and off.
Layer 3: Optional High-Consumption Loads
Separate loads that can be disconnected when longer backup duration is more important than simultaneous operation.
The 4.02kWh value describes nominal stored DC energy. The inverter determines maximum AC output power, while usable energy is influenced by inverter conversion losses, battery settings, temperature and cable resistance.
A large-capacity battery connected to an undersized inverter cannot run loads beyond the inverter rating. Similarly, a high-power inverter may demand more current than the battery can supply continuously.
The product measures 523 × 269 × 218mm and weighs 27.2kg net. The supporting surface should remain stable and provide access for cable connection and inspection.
The package measures 543 × 289 × 268mm and weighs 28.7kg gross. These values are useful for transport cartons, pallet loading and site handling preparation.
The IP65 enclosure supports protected technical installations, but the battery must not be immersed and all external electrical connections require appropriate protection.
| Nominal Battery Rating | 12.8V / 314Ah / 4019Wh |
| Battery Chemistry | LiFePO4 |
| Voltage Operating Range | 10.0–14.6Vdc |
| Continuous Current Limits | 100A Charge / 200A Discharge |
| One-Second Pulse Limit | 300A |
| Product and Package Size | 523 × 269 × 218mm / 543 × 289 × 268mm |
| Net and Gross Weight | 27.2kg / 28.7kg |
| Storage Conditions | 0°C to 30°C / Six Months at 25°C |
| Protection and Documentation | IP65 / BMS / UN38.3 / MSDS |
The listed specification uses 4019Wh as the nominal energy value, commonly rounded to approximately 4.02kWh.
That depends on the load schedule, inverter rating and required runtime.
The specification lists six months of storage at 25°C under the stated storage conditions.
No. The battery, inverter, charger and external DC protection are separate components.
Use the average load, expected operating hours, inverter efficiency and configured discharge limit.
Need to estimate backup time from a detailed load schedule?
Company Details
Business Type:
Manufacturer
Year Established:
15 Years
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
About Voltertech Co., Limited Voltertech Co., Limited is a professional provider of energy storage systems and renewable energy solutions, serving distributors, solar installers, EPC contractors, wholesalers, and project developers worldwide. Our product portfolio includes residential energy st... About Voltertech Co., Limited Voltertech Co., Limited is a professional provider of energy storage systems and renewable energy solutions, serving distributors, solar installers, EPC contractors, wholesalers, and project developers worldwide. Our product portfolio includes residential energy st...
Get in touch with us
Leave a Message, we will call you back quickly!