YABO High Power 12V 400Ah LiFePO4 Battery Pack Large Capacity Lithium Iron Phosphate Battery for Solar Energy Storage Systems
Ready to Get the High-Capacity 12V 400Ah LiFePO4 Battery!
- High-capacity battery for diverse needs, with 5120Wh energy & 5120W max. power.
- 38Kg weight, compact size (L20.55W9.37H8.58 inch).
- 100% BMS protections with built-in 300A BMS, featuring overcharge, over-discharge, over-current, overheating, and short circuit.
- With 1.3X energy, 1.6X lifespan, perfectly replacing 12V 400Ah lead-acid battery.
- IP65 water & dust proof, suitable for RVs, solar systems, marine equipment, off-grid setups, etc.
- 6000+ cycles, 10-year lifespan.
- Do NOT disassemble or expose to extreme conditions improperly.
- Excellent service with fast delivery, 24-hour response and reliable after-sales support.
- Overview
- Recommended Products
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Minimum discharge temperature: –4°F (–20°C)
- Maximum discharge temperature: 140°F (60°C)
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4P — Expand Capacity
4 parallel units: 12V 1600Ah | 20.48kWh
Perfect for users who require multi-day energy autonomy. -
4S — Increase Voltage
4 series units: 48V 400Ah | 20.48kWh
Ideal for large inverters, whole-house solar systems, and high-power tools.
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4P4S — Mega Capacity System
16 units combined: 48V 1600Ah | 81.92kWh
A complete solar storage solution comparable to commercial-grade battery walls. -
Outdoor cooking equipment
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Portable air conditioners
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Refrigerators & freezers
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Sound systems & entertainment gear
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Power tools for field engineering
- Medical devices for emergency preparedness
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Compatible with all major MPPT charge controllers
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Works flawlessly with pure sine wave inverters
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Provides nighttime energy storage for hybrid or fully off-grid homes
- Supports high-draw AC appliances through large inverters
Specifications:
| Place of Origin | Guangdong, China |
| Brand Name | YABO |
| Model Number | LF4024 |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 400Ah |
| Battery cell | Lithium Iron Phosphate Battery |
| Max.Charging Voltage | 14.0~14.6V |
| Cycle Life | 6000 cycles |
| Warranty | 5 years |
| Internal Resistance | ≤50mΩ |
| Terminal | M8 |
| Dimension (L*W*H) | 522*238*218mm |
| Weight | Approx. 38Kg |
| Water Dust Resistance | IP65 |
| Operating Temperature(℃) | -20℃~60℃ |
| Certification | CE/RoHS/UN38.3/MSDS |
| Application | Boats, Golf Carts, Solar Energy Storage Systems, UPS, Lighting |
| OEM/ODM | Customized OEM ODM Battery Pack |
⭐ YABO 12.8V 400Ah LiFePO4 Battery — Ultra-High Capacity Energy Bank for Large Solar, RV, Marine & Off-Grid Systems
The YABO 12V 400Ah LiFePO4 Battery is designed for high-capacity solar energy systems. With massive 400Ah storage, it supports large off-grid homes, workshops, and farms. The LiFePO4 chemistry provides long-term stability, 6000 cycles, and high energy conversion efficiency. The battery integrates seamlessly with inverters and charge controllers, offering scalable storage for renewable systems. Built with robust materials and smart BMS control, it guarantees safe, reliable operation under continuous load.
1. Industrial-Grade Design with 200A Smart BMS & IP65 Reinforced Protection
The YABO 12.8V 400Ah LiFePO4 Battery is engineered for users who require extreme capacity and absolute reliability in demanding environments.
Built with automotive-grade 206Ah LiFePO4 cells, this powerhouse delivers 5120Wh of usable energy, making it ideal for whole-house solar systems, commercial vehicles, yacht power banks, and large-scale off-grid equipment.
A 200A high-load BMS is integrated to handle powerful inverters, high-drain appliances, and continuous deep-cycle operation.
The BMS actively manages cell balancing, surge control, thermal protection, and short-circuit prevention—ensuring safe operation even under heavy power loads.
The enclosure carries an IP65 rating, shielding the battery from water spray, dust ingress, and harsh outdoor conditions.
From marine lockers to outdoor cabins and RV underbelly compartments, the casing resists corrosion, vibration, and weather exposure.
Heavy-duty M8 terminal bolts provide secure, low-resistance connections for large power systems such as 3000W–6000W inverters, air conditioners, and 24/7 continuous loads.

2. Multi-Scene Power Support — A Large-Scale Energy Source for Homes, Campsites & Marine Vessels
With its massive energy reserve, the YABO 400Ah battery supports a wide spectrum of off-grid and hybrid energy applications:
✔ Off-Grid Homes
Operate refrigerators, entertainment systems, lighting, pumps, and washing machines through the night without the need for grid power.
✔ RV & Motorhomes
Run air conditioners, microwaves, power tools, and induction cooktops—perfect for long trips or full-time mobile living.
✔ Camping & Outdoor Base Stations
Provides stable energy for lighting, heating systems, freezers, photography equipment, communication radios, and medical devices.
✔ Marine & Yacht Systems
Handles trolling motors, navigation devices, sonar systems, winches, and power-hungry onboard equipment.

3. Low-Temperature Protection for Extreme Winter Performance
Harsh winter conditions are no obstacle for the YABO 12V 400Ah LiFePO4 Battery.
Built-in low-temperature discharge protection ensures the battery continues operating safely even in freezing conditions.
Whether you're camping in snowy forests, navigating cold waters, or powering a mountain cabin, the battery maintains stability and voltage integrity.
This resilience makes the 400Ah model particularly suitable for high-latitude regions or year-round off-grid use.

4. Flexible Energy Expansion — Build Massive 12V, 24V, or 48V Banks
The YABO 400Ah battery is designed with modular scalability, allowing you to build energy systems from compact to industrial-scale.
This scalable architecture allows small weekend systems to grow into full home energy plants as needs expand—making the battery future-proof and investment-efficient.

5. Perfect Lead-Acid Replacement — Stronger, Lighter & Far Longer Lasting
The YABO 400Ah LiFePO4 Battery dramatically outperforms traditional lead-acid batteries in every critical aspect:
✔ Up to 6000 cycles, greatly exceeding SLA's 2000–4000 cycle range
✔ 10-year expected lifespan, reducing replacement frequency
✔ 100% usable capacity vs SLA's 50–60% recommended usage
✔ Zero maintenance & environmentally safe
✔ Much lighter than bulky lead-acid equivalents despite higher performance
For solar users, boat owners, and RV travelers, switching to LiFePO4 delivers significant improvements in power efficiency, cost savings, and long-term dependability.

6. Extended Runtime with 5120Wh Energy — Support for More Devices at Once
With over 5.1kWh of energy storage, the YABO 400Ah battery keeps large appliances running comfortably for extended periods:
Flat discharge performance ensures stable voltage delivery until nearly empty—no fading lights, no weakened motors, no unstable inverter behavior.
Daily users benefit from the battery's exceptional longevity, as 6000+ deep cycles maintain consistent capacity even under demanding load patterns.

7. Seamless Solar Integration — Optimized for Panels, MPPT Controllers & Inverters
The YABO 400Ah LiFePO4 Battery serves as a reliable core for solar energy systems:
Its fast-charging efficiency, stable chemistry, and oversized capacity deliver a smooth renewable-energy experience for both residential and commercial installations.

⭐ Ready to Upgrade Your System? "The YABO 12.8V 400Ah LiFePO4 Battery is the ultimate high-capacity solution for users who demand maximum runtime, durability, and safety.
Contact us now for a quote, OEM options, and technical advice.
Power your home, RV, boat, or off-grid system with confidence and long-lasting energy freedom.