Voltertech Co.,Limited
| Battery Net Weight | 20.0kg |
| Low - Voltage Platform | 12.8Vdc |
| Rated Battery Capacity | 200Ah |
| Enclosure Protection | IP65 |
| Packaged Shipping Size | 547 × 267 × 268mm |
| Suggested System Role | Off-Grid and Backup Storage Battery |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 5000 Units per Month |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Storage Case Dimensions | 522 × 242 × 218mm |
| Nominal Off - Grid Energy | 2.56kWh |
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Brand Name | Voltertech |
| Model Number | PB-3KWH-12.8V-Q |
| Certification | MSDS , UN38.3 |
| Place of Origin | China |
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Product Specification
| Battery Net Weight | 20.0kg | Low - Voltage Platform | 12.8Vdc |
| Rated Battery Capacity | 200Ah | Enclosure Protection | IP65 |
| Packaged Shipping Size | 547 × 267 × 268mm | Suggested System Role | Off-Grid and Backup Storage Battery |
| Payment Terms | L/C,T/T,Western Union | Supply Ability | 5000 Units per Month |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam | Storage Case Dimensions | 522 × 242 × 218mm |
| Nominal Off - Grid Energy | 2.56kWh | Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Brand Name | Voltertech | Model Number | PB-3KWH-12.8V-Q |
| Certification | MSDS , UN38.3 | Place of Origin | China |
| High Light | 2.56kWh LiFePO4 Lithium Battery ，12.8V 200Ah LiFePO4 Lithium Battery ，LiFePO4 Off Grid Battery Storage | ||
2.56kWh 12.8V 200Ah LiFePO4 Battery for Extended Off Grid Power Storage
This 12.8V 200Ah LiFePO4 battery provides 2560Wh of nominal energy for compatible off-grid, solar backup, UPS and inverter systems. It offers twice the nominal capacity of a 12.8V 100Ah battery while maintaining a low-voltage battery configuration.
The product measures 522 × 242 × 218mm and weighs 20kg net. Buyers can use these values to review the available battery compartment, transport requirements, cable access and supporting surface before purchase.
A 2.56kWh battery can be considered when a smaller 1.28kWh unit does not provide enough operating time for the selected loads. It may suit projects with longer evening use, extended communication-equipment operation or a larger group of essential circuits.
Off-Grid Daily Energy
The battery can store available charging energy for later use according to the charger and inverter operating strategy.
Longer Selected-Load Backup
The higher capacity can extend runtime compared with a 100Ah battery under similar load and system conditions.
High Continuous DC Capability
The documented 200A continuous discharge rating supports compatible higher-current systems when cables and protection are selected correctly.
The 2.56kWh rating represents nominal DC energy. Backup duration should be calculated from the average load rather than from the inverter’s maximum output rating.
Lighting, refrigeration, routers and security systems have different operating patterns. Equipment that runs intermittently should be calculated using expected duty time, while continuous loads should be calculated over the full required period.
Usable energy will be lower than the nominal value after inverter conversion losses, battery settings, cable losses and operating conditions are considered.
The package measures 547 × 267 × 268mm and weighs 21kg gross. The battery should be installed upright on a stable supporting surface with access to the M8 terminals and external DC protection.
Its IP65 enclosure supports installation in protected technical areas, but the terminal connections should remain covered and the battery must not be immersed.
| Nominal Battery Capacity | 12.8V / 200Ah / 2560Wh |
| Battery Chemistry | Lithium Iron Phosphate / LiFePO4 |
| Operating Voltage Window | 10.0–14.6Vdc |
| Charge and Discharge Limits | 100A Charge / 200A Discharge |
| One-Second Pulse Current | 300A |
| Product Dimensions | 522 × 242 × 218mm |
| Net and Gross Weight | 20.0kg / 21.0kg |
| Installation Conditions | IP65 / -10°C to 50°C / 0–95% Non-Condensing |
| Documentation | UN38.3 / MSDS |
The formal electrical rating is 12.8V and 200Ah, equal to 2560Wh or 2.56kWh.
No. A compatible solar charge controller or inverter charger is required between the solar array and battery.
No. Battery energy and inverter output power must be evaluated separately.
A protected location is recommended. Connections and terminals must remain protected, and the battery must not be immersed.
Provide the load power, operating hours, inverter efficiency and available charging source.
Need to calculate storage capacity for an off-grid load?
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...
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