Stackable Lithium Phosphate Battery 48v off Grid 20kwh Battery

Description

Product Features:

Battery Category: Energy Storage Battery
Communication: Supports multiple communication protocols including RS232, RS485, CAN, WiFi, GPS, and 4G. Compatible with various inverter models for communication and PV integration.
Voltage: Customizable voltage ranges, current ratings, capacity, dimensions, and terminal types available upon request.

Parameter	Specification
Application Scenario	Energy Storage Battery
Nominal Voltage	51.2V
Nominal Capacity	400Ah
Cell Configuration	16S1P
Rated Energy	20,480Wh
Cycle Life	6000 cycles / ≥80% DOD
Max Continuous Charging Current	20A
Max Continuous Discharging Current	400A
Charge Cut-off Voltage	58.4V
Discharge Cut-off Voltage	40V
Charging Temperature Range	0°C ~ 45°C
Discharging Temperature Range	-10°C ~ 60°C
Protection System	Built-in Intelligent BMS

 

As homeowners and businesses move toward complete energy independence, the demand for modular and high-capacity storage has never been higher. Our Stackable Lithium Phosphate Battery system represents the pinnacle of modern energy management. By offering a high-density 20kWh Battery solution in a sleek, space-saving format, we provide the reliable foundation needed for robust off-grid living and critical backup power. This system is not just a battery; it is a scalable energy ecosystem designed to grow with your power needs.

Technical Excellence: The Modular Powerhouse

The core of this system is built upon premium Lithium Iron Phosphate (LiFePO4) chemistry, specifically chosen for its safety, thermal stability, and long cycle life. To achieve the 20kWh Battery capacity, our engineers utilize a stackable modular design. Each module typically consists of 51.2V 100Ah a arrangement (16S1P). By stacking four of these high-performance modules in parallel (16S4P), the system reaches a total energy reservoir of 20.8kWh.

Operating at a nominal voltage of 51.2V, this system is perfectly optimized for standard 48V off-grid inverters. This higher nominal voltage reduces current draw for the same power output, leading to cooler operation and higher efficiency throughout the discharge cycle. With an integrated smart Battery Management System (BMS) in every module, the stack acts as a single, intelligent unit that monitors cell voltage, temperature, and state of charge (SoC) in real-time, ensuring a lifespan of over 6000 cycles at 80% depth of discharge.

Versatile Applications for Off-Grid Living

The 20kWh Battery configuration is the “sweet spot” for many applications, providing enough energy to bridge the gap between daily solar generation and nighttime consumption.

• Whole-Home Off-Grid Systems: Power high-load appliances like air conditioners, well pumps, and electric ovens without relying on the utility grid.
• Commercial Backup: Ideal for small businesses or medical clinics where a consistent 20kWh Battery backup ensures that essential equipment and refrigeration remain operational during extended outages.
• Agricultural & Remote Projects: Reliable power for sustainable farming operations or remote research stations that require high-capacity, low-maintenance storage.
• EV Charging Support: Use stored solar energy to charge your electric vehicle at night, completing the green energy loop.

Why Choose the Long Sing Energy Factory?

When investing in a large-scale 20kWh Battery, the manufacturing quality is paramount. Long Sing Energy is a dedicated factory partner that bridges the gap between industrial innovation and residential reliability.

1. Grade-A Cell Quality: We exclusively use brand-new, Tier-1 cells. We never use “B-grade” or recycled cells, ensuring that your system hits its rated capacity and cycle life.
2. Extensive Testing Protocols: Our factory conducts rigorous thermal cycling and vibration testing to simulate 10 to 20 years of deployment. We validate every stackable module to ensure it can handle the physical and electrical stresses of real-world use.
3. Smart Integration: Our BMS supports multiple communication protocols (CAN, RS485, RS232), allowing seamless integration with major inverter brands like Victron, Growatt, and Deye.
4. Modular Scalability: Our stackable design allows you to start with or and easily upgrade to a full 20kWh Battery or more as your energy requirements expand.

Design Your Energy Future Today

Reliable power is no longer a luxury—it’s a necessity. At Long Sing Energy, we provide the engineering expertise and high-capacity hardware you need to secure your energy future. Whether you are a distributor looking for a reliable OEM partner or an installer designing a high-end off-grid system, our team is here to support you with technical datasheets and competitive pricing.

Fill out the inquiry form below to request a customized quote or a technical consultation. Let’s work together to build a power solution that keeps your world running, no matter what happens on the grid.