Description
Our lithium battery manufacturer offers the 12V 400Ah LiFePO4 Battery, a high – capacity energy solution ideal for OEM, ODM, and wholesale buyers, with outstanding performance and long – term reliability.
Key Features
This lithium battery has several key features. It boasts a high energy capacity of 400Ah and 5.12kWh, capable of efficiently powering larger systems. With an extended cycle life of over 4000 cycles at 80% DOD, it ensures long – term cost – effectiveness. It can operate efficiently in a wide temperature range from – 20¡ãC to 60¡ãC. The advanced Battery Management System (BMS) protects against overcharging, over – discharging, and short circuits. Moreover, it offers customizable options for OEM/ODM projects.
Product Description
Engineered to meet high – demand applications, the 12V 400Ah LiFePO4 Battery uses premium LiFePO4 cells for safety and stability. With dimensions of 523 x 269 x 218 mm and a weight of about 39 kg, it’s versatile for RVs, marine vessels, and solar power systems. It supports a maximum continuous charge and discharge current of 100A and has an IP65 rating for dust and water protection. Optional Bluetooth connectivity and an LCD display enhance monitoring. Backed by a 10 – year design life and multiple certifications like UL, CE, and RoHS, it’s a reliable choice for various industries.
A 12V 400Ah LiFePO4 battery from Redway ESS offers durable, high-capacity power by utilizing advanced lithium iron phosphate technology combined with a sophisticated Battery Management System (BMS). Delivering over 4000 deep cycles at 80% depth of discharge, rapid charging, and robust safety protections, it provides reliable, maintenance-free energy for solar, RV, marine, and off-grid applications.
What are the key features of the 12V 400Ah LiFePO4 battery from Redway ESS?
This battery delivers a nominal voltage of 12.8V and a capacity of 400Ah, storing approximately 5120Wh of energy. It supports continuous discharge currents up to 200A and peak currents around 400A. The battery is housed in a rugged ABS or metal casing with IP54 to IP65 protection, weighing about 52.9 lbs (24 kg) and measuring roughly 21 x 8 x 8.5 inches. The integrated BMS provides overcharge, over-discharge, overcurrent, short circuit, and temperature protections.
How does the Battery Management System (BMS) ensure safety and longevity?
The BMS monitors individual cell voltages, current, temperature, and state of charge to prevent unsafe conditions such as overcharging, deep discharge, overheating, and short circuits. It balances cell voltages to maximize usable capacity and extend battery life. Advanced BMS options include Bluetooth and CAN bus for real-time monitoring and diagnostics.
Why is LiFePO4 chemistry ideal for durable, high-capacity batteries?
LiFePO4 chemistry offers superior thermal stability, safety, and long cycle life exceeding 4000 cycles at 80% depth of discharge. It maintains stable voltage output, resists thermal runaway, and has a low self-discharge rate (~3% per month). Compared to lead-acid batteries, it is lighter, more efficient, and environmentally friendly.
What are the typical applications for a 12V 400Ah LiFePO4 battery?
Ideal for solar energy storage, recreational vehicles (RVs), marine vessels, off-grid power systems, backup power, and other applications requiring reliable, high-capacity, and long-lasting energy storage.
How do charging and discharging specifications impact battery performance?
The battery uses a CC/CV charging profile with a full charge voltage around 14.4V and a discharge cut-off voltage of 10V. It supports a standard charging current of 100A and continuous discharge current of 200A, with peak discharge currents up to 400A. These parameters enable fast charging and high power delivery.
Charging and Discharging Specifications
| Specification | Typical Value |
|---|---|
| Nominal Voltage | 12.8V |
| Nominal Capacity | 400Ah |
| Nominal Energy | 5120Wh |
| Continuous Discharge | 200A |
| Peak Discharge Current | 400A |
| Charge Voltage | ~14.4V |
| Cycle Life | >4000 cycles @ 80% DoD |
| Operating Temperature | Charge: 0°C to 55°C |
| Discharge: -20°C to 60°C | |
| Protection Rating | IP54 to IP65 |
| Weight | ~24 kg |
How does temperature affect battery life and safety?
The battery performs reliably within a broad temperature range. Charging is recommended between 0°C and 55°C, while discharging can occur from -20°C to 60°C. The BMS actively manages temperature to prevent overheating and thermal runaway, ensuring safety and longevity.
How scalable is the 12V 400Ah LiFePO4 battery for larger systems?
Multiple batteries can be connected in series to increase voltage or in parallel to increase capacity. Redway ESS provides expert guidance to ensure proper BMS synchronization and system design for balanced charging and discharging.
What maintenance is required to maximize battery lifespan?
Minimal maintenance includes regular terminal cleaning, adherence to proper charging protocols, avoiding deep discharges, and monitoring battery health via BMS. Redway ESS offers firmware updates and technical support to maintain optimal performance.
How does Redway ESS support customers with their LiFePO4 batteries?
Redway ESS offers customized 12V 400Ah LiFePO4 batteries with advanced BMS, rugged design, and smart connectivity options like Bluetooth and CAN bus. Their expert team ensures seamless integration, reliable operation, and comprehensive after-sales service.
