In the field of new energy storage, the "51.2V 100Ah LiFePO4 battery" has become a key component of mainstream energy storage systems, widely used in residential solar energy storage, commercial backup power, off-grid systems, and industrial energy management scenarios. Due to its high safety, long cycle life, and stable performance, this type of battery has received significant attention from the global market. Innovative battery and energy solution providers, such as ONESUN (OneSun Technology), are leveraging their strong OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) service capabilities to provide customized, best-in-class wholesale solutions to global customers.
What is a 51.2V 100Ah LiFePO4 Battery?
A 51.2V 100Ah LiFePO4 battery is a high-performance battery based on the lithium iron phosphate (LiFePO₄) chemical system, with a nominal capacity of 5.12 kWh, suitable for use as an energy storage power source. Compared to traditional lead-acid batteries, LiFePO₄ batteries offer higher safety, longer cycle life (typically exceeding 6000 cycles), and lower self-discharge rates, making them ideal for solar energy storage systems requiring high stability and long lifespan.
| Parameter | Specification / Value |
|---|---|
| General Specifications | |
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 51.2 V (16 cells in series, 3.2V each) |
| Rated Capacity | 100 Ah (at 0.2C discharge rate, 25°C) |
| Energy | 5120 Wh (5.12 kWh) |
| Cell Configuration | 16S1P (16 series, 1 parallel) or 16S2P (16 series, 2 parallel for higher capacity variants) |
| Electrical Characteristics | |
| Charge Voltage | 58.4 V (3.65V per cell) |
| Float Charge Voltage | 54.4 - 55.2 V (3.4-3.45V per cell) |
| Cut-off Discharge Voltage | 44.8 V (2.8V per cell) |
| Standard Charge Current | 50 A (0.5C) |
| Maximum Continuous Charge Current | 100 A (1C) |
| Standard Discharge Current | 100 A (1C) |
| Maximum Continuous Discharge Current | 200 A (2C) |
| Peak Discharge Current (≤10s) | 300 A (3C) |
| Internal Resistance | ≤25 mΩ |
| Performance & Lifespan | |
| Cycle Life (80% DOD) | ≥4000 cycles |
| Cycle Life (100% DOD) | ≥3500 cycles |
| Calendar Life | 8-10 years |
| Self-discharge Rate | ≤3% per month |
| Charge Efficiency | ≥98% |
| Energy Efficiency | ≥95% |
| Physical Specifications | |
| Dimensions (L×W×H) | Approx. 442 × 420 × 132 mm (standard rackmount size) |
| Weight | Approx. 45-50 kg |
| Terminal Type | M8 bolt terminals or Anderson connectors |
| Housing Material | Metal casing with powder coating |
| Environmental & Safety | |
| Operating Temperature (Charge) | 0°C to 55°C (32°F to 131°F) |
| Operating Temperature (Discharge) | -20°C to 60°C (-4°F to 140°F) |
| Storage Temperature | -10°C to 35°C (14°F to 95°F) for long-term storage |
| Ingress Protection (IP Rating) | IP20 (standard) or IP65 (optional for outdoor use) |
| Safety Certifications | UL 1973, UN38.3, CE, RoHS compliant |
| Battery Management System (BMS) | Integrated with Overcharge, Over-discharge, Over-current, Short-circuit, and Temperature protection |
ONESUN: Global OEM/ODM Battery Pack Wholesale Solution Expert
One-Stop Global Service Provider
Founded in 2014, ONESUN is a technology company specializing in solar energy storage and lithium battery solutions. Through vertical integration of battery, inverter, and system integration technologies, it provides integrated solutions from battery cells to complete energy storage systems. The company possesses strong capabilities in battery R&D, BMS design, and battery pack manufacturing, and can provide efficient OEM/ODM customization services tailored to customer needs.
The advantages of OEM & ODM services include:
* Customized specification design: Battery voltage, cell layout, size, and management protocols can be designed according to customer project requirements;
* Integrated technical support: Full-process service from product concept, prototype manufacturing, testing and verification to mass production;
* Global export and service: Products are exported to more than 70 countries and regions, providing support to global system integrators and brand customers.
How ONESUN serves global customers
High-performance LiFePO4 battery modules
ONESUN offers a variety of LiFePO₄ battery products, including wall-mounted, cabinet-style, and stackable energy storage modules, adaptable to different application scenarios. For example, a 51.2V 100Ah LiFePO₄ battery module can be integrated into residential or commercial energy storage systems, easily achieving energy storage and power backup functions.
These battery modules have the following core features:
* Safe and Reliable: Utilizes advanced LiFePO₄ cells and a smart BMS, providing overcharge, over-discharge, overcurrent, and temperature protection;
* High Cycle Life: Standard ≥ 6000 cycles, ensuring stable operation over extended periods;
* Stable Performance: Stable voltage output, compatible with various inverters and energy management systems;
* Modular Expansion: Supports series and parallel connection of battery modules, flexibly expanding energy storage capacity.
Wide Range of Applications and Significant Value
Home Solar Energy Storage Systems
Using 51.2V 100Ah LiFePO₄ battery modules, home solar systems can store excess photovoltaic energy during the day, providing continuous power during peak electricity demand or power outages, achieving energy autonomy and electricity cost savings.
Commercial and Industrial Energy Storage
For commercial buildings, data centers, factory workshops, and other scenarios with high electricity loads, these high-capacity battery combinations can serve as backup power or peak-valley regulation energy storage units, improving energy efficiency and reliability. 🚚 Off-Grid Systems and Mobile Devices
In off-grid photovoltaic, marine, and RV applications, reliable and lightweight LiFePO₄ battery packs are indispensable, providing stable power to various loads even without a power grid.
Why ONESUN is the Preferred Wholesale Choice
1. Global Service System: Supports cross-regional OEM/ODM wholesale cooperation and provides technical support and after-sales service;
2. Integrated Solutions: From cells and BMS to complete energy storage systems, we can design solutions tailored to customer business needs;
3. Flexible Product Line: Offers not only individual battery modules but also system-level products such as inverters and charge/discharge controllers;
4. Reliable Quality and Certifications: Products undergo rigorous testing, meet international safety standards, and are suitable for various environments and applications.
For wholesale customers seeking reliable, high-performance battery packs, the 51.2V 100Ah LiFePO₄ battery not only represents mainstream energy storage capacity in the industry but is also the cornerstone of building modern green energy systems. In this context, ONESUN's OEM/ODM solutions, with their global vision, professional services, and technological advantages, have become the ideal choice for many energy companies, system integrators, and brand partners.
