12V 300Ah Lithium-Ion Phosphate Battery Pack 4000 Cycles For Backup Power System
Product Overview
The 12V 300Ah Lithium Iron Phosphate (LiFePO4) Battery Pack is a high-capacity deep-cycle energy storage solution designed for demanding residential, commercial, and industrial applications. Built with advanced LiFePO4 technology, this battery delivers exceptional safety, long service life, and stable performance, making it an ideal replacement for traditional lead-acid battery systems.
With a total energy capacity of 3.84kWh, the battery provides reliable and continuous power output for off-grid systems, solar energy storage, marine applications, RVs, and backup power systems. Its high energy density and compact design allow for efficient space utilization while delivering strong and consistent performance.
Key Features
- Advanced LiFePO4 cell technology
- Built-in intelligent Battery Management System (BMS)
- Long cycle life exceeding 4,000 cycles
- High energy density and stable performance
- Fast charging capability
- Deep-cycle design for repeated use
- Maintenance-free operation
- Low self-discharge rate
- Environmentally friendly and lead-free
Technical Specifications
| Parameter |
Value |
Parameter |
Value |
| Battery Voltage |
12.8V |
Battery Capacity |
300Ah |
| Energy |
3840Wh |
Self-Discharge Rate |
≤3% per month |
| Max. Discharge Current |
150A |
Max. Charge Current |
150A |
| Discharge Cut-off Voltage |
10.0V |
Charge Cut-off Voltage |
14.6V |
| Cycle Life (@DOD 80%) |
4000 cycles |
Terminal |
M8 |
| Charge Temperature Range |
0℃~50℃ |
Discharge Temperature Range |
-20℃~60℃ |
Applications
- Telecommunications Backup Power
- Emergency Power Supply Systems
- Solar & Wind Power Systems
- Off-Grid Power Systems
- RVs and Camper Vans
- Marine and Boat Power Supply
Customization Services
We provide comprehensive OEM & ODM customization services for Lithium Iron Phosphate (LiFePO4) battery packs to meet the diverse requirements of energy storage systems, electric vehicles, industrial equipment, and specialized applications.
Voltage and Capacity Customization
We design battery packs according to specific power requirements, including:
- Customized voltage (12V, 24V, 36V, 48V, etc.)
- Customized capacity (Ah) and energy storage (kWh)
- Series and parallel configuration solutions
- High-energy or high-power design options
Battery Pack Structure Design
Flexible mechanical design options are available to match installation environments:
- Custom dimensions and enclosure shapes
- Compact and space-saving designs
- Metal or high-strength plastic housing
- Shockproof and vibration-resistant structures
- IP-rated waterproof and dustproof protection (IP54-IP67 available)
Frequently Asked Questions
Q1: What applications is the 12V 300Ah LiFePO4 battery suitable for?
A: It is widely used in solar energy storage systems, RVs, marine boats, off-grid power systems, backup power supplies, and industrial energy storage applications.
Q2: Can this battery replace a lead-acid battery directly?
A: Yes. It is designed as a direct replacement for 12V lead-acid, AGM, or gel batteries, offering higher efficiency, longer lifespan, and lighter weight.
Q3: Can the battery be used in parallel or series connections?
A: Yes, but it must follow manufacturer guidelines. Custom configurations can be provided for higher voltage or capacity systems.
Q4: What temperature range can it operate in?
A: The battery is designed to operate in a wide temperature range. Optional heating systems can be added for low-temperature environments.
Q5: Does the battery support solar systems?
A: Yes. It is fully compatible with solar charge controllers (MPPT/PWM) and is widely used in residential and commercial solar systems.
Q6: What certifications are available?
A: Depending on requirements, certifications such as UN38.3, MSDS, CE, and other transportation safety documents can be provided.
