3.84kWh 12.8V 300Ah LiFePO4 Backup Battery For UPS Solar Communication Applications
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.
Extended Energy within a 12V 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.
200A Current and 2.56kW Power Platform
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.
3.84kWh Long-Duration Battery Specifications
| 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 |
Long-Duration Backup FAQ
What is the main advantage of the 300Ah version?
It provides the largest stored-energy reserve in the 12.8V series for a longer potential operating period.
Does the larger capacity increase output power?
Not in this specification. Rated battery power remains 2.56kW.
Can it store solar or wind energy?
Yes, when connected through compatible charging equipment with suitable lithium battery settings.
How should charging capacity be selected?
Match the charger or solar controller to the energy used and the time available to recharge the battery.
What data helps calculate backup time?
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.
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