Voltertech Co.,Limited
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| 1 to 1 Lead Acid Swap | Direct physical replacement for massive 12V marine battery banks utilizing standard M8 terminals. |
| IP67 Waterproof Armor | Fully sealed rugged enclosure survives total submersion and the harshest overlanding trails. |
| 200A Heavy Duty Output | Relentless discharge engine effortlessly drives massive 2500W inverters and heavy anchor winches. |
| Supply Ability | 5000 Units per Month |
| Instant Visual Telemetry | Integrated top mounted display provides immediate visual feedback on remaining voltage status. |
| 3.84kWh Behemoth Capacity | Massive 300Ah core delivers ultimate off grid endurance for heavy marine and RV applications. |
| Payment Terms | L/C,T/T,Western Union |
| 6000 Deep Cycle Life | Automotive grade lithium chemistry guarantees over a decade of continuous maintenance free use. |
| High-Density Form Factor | Condenses nearly 4kWh of energy into a single manageable unit to eliminate multi battery clutter. |
| 4S4P Matrix Scaling | Expand your expedition microgrid up to 51.2V 1200Ah by linking rugged modules together. |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Certification | MSDS , UN38.3 |
| Model Number | PB-4KWH-12.8V-F |
| 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
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production | 1 to 1 Lead Acid Swap | Direct physical replacement for massive 12V marine battery banks utilizing standard M8 terminals. |
| IP67 Waterproof Armor | Fully sealed rugged enclosure survives total submersion and the harshest overlanding trails. | 200A Heavy Duty Output | Relentless discharge engine effortlessly drives massive 2500W inverters and heavy anchor winches. |
| Supply Ability | 5000 Units per Month | Instant Visual Telemetry | Integrated top mounted display provides immediate visual feedback on remaining voltage status. |
| 3.84kWh Behemoth Capacity | Massive 300Ah core delivers ultimate off grid endurance for heavy marine and RV applications. | Payment Terms | L/C,T/T,Western Union |
| 6000 Deep Cycle Life | Automotive grade lithium chemistry guarantees over a decade of continuous maintenance free use. | High-Density Form Factor | Condenses nearly 4kWh of energy into a single manageable unit to eliminate multi battery clutter. |
| 4S4P Matrix Scaling | Expand your expedition microgrid up to 51.2V 1200Ah by linking rugged modules together. | Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Certification | MSDS , UN38.3 | Model Number | PB-4KWH-12.8V-F |
| Brand Name | Voltertech | Place of Origin | China |
| High Light | 12.8V 300Ah LiFePO4 Battery ，3.84kWh LiFePO4 Backup Battery ，UPS LiFePO4 Backup Battery | ||
3.84kWh 12.8V 300Ah LiFePO4 Battery for Long Duration Backup Power
This 12.8V, 300Ah LiFePO4 battery provides 3.84kWh of nominal energy for longer-duration UPS, solar, emergency and communication backup applications.
It is the highest-capacity 12V option in this product group and is intended for projects that need more stored energy without changing to a 24V-class platform.
The 300Ah capacity can extend the potential operating time of selected lighting, security, communication and inverter loads. Actual runtime depends on total consumption, conversion efficiency and retained battery reserve.
A larger battery also requires sufficient charging capacity. The solar controller or AC charger should restore daily energy use within the available charging period.
Rated charge and discharge current is 200A, while the battery-side rated power is 2.56kW. A 205A, one-second current reference is also listed.
The higher capacity increases energy storage but does not raise the rated power above the 200Ah version. Buyers should therefore select this model primarily for longer operating time.
| Nominal Rating | 12.8V / 300Ah / 3.84kWh |
| Cell and BMS Configuration | 4S1P / 4S200A BMS |
| Operating Voltage Range | 10.0–14.6V |
| Current Capability | 200A Rated / 205A for 1 Second |
| Power Capability | 2.56kW Rated / 2.624kW for 1 Second |
| Cycle Reference | At Least 6000 Cycles at 80% DOD and 25°C |
| Expansion Configuration | Four Series / Four Parallel Listed |
| Dimensions and Weight | 384 × 194 × 255mm / 26kg |
| Protection and Temperature | IP67 / Charge 0°C to 50°C / Discharge -10°C to 60°C |
It provides the largest stored-energy reserve in the 12.8V series for a longer potential operating period.
Not in this specification. Rated battery power remains 2.56kW.
Yes, when connected through compatible charging equipment with suitable lithium battery settings.
Match the charger or solar controller to the energy used and the time available to recharge the battery.
Provide the continuous load, daily operating hours, inverter efficiency and required retained reserve.
Send the load schedule and charging capacity to review whether the 300Ah battery matches the required operating period.
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!