48v 400ah High Capacity 20KWH Energy Storage Battery for Solar System

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48v 400ah High Capacity 20KWH Energy Storage Battery for Solar System

LiFePO4 battery for long cycle life and high safety level
Compatible with multiple inverter brands
Customizable communication protocols
Support parallel connection for power expansion


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Product Description

This 48V 400Ah 20kWh LiFePO4 solar battery is designed for emergency backup power, off-grid, time of use, and self-consumption applications. Whether you want to reduce energy costs or to have a dependable power supply in the event of an outage, this battery is a perfect solution.

ES48400

High Performance LFP Solar Battery

This lithium battery uses lithium iron phosphate cells and is equipped with an advanced BMS to monitor the battery's state of charge and discharge, as well as temperature and voltage levels, ensuring maximum safety, high reliability and longer service life.

Expandable Energy Storage Solution

This solar storage battery allows multiple units to be connected in parallel to increase power capacity. It can be conveniently expanded to accommodate growing energy needs.

Good Compatibility with Multiple Inverters

It has a built-in intelligent BMS that enables it to seamlessly work with a wide range of inverters available in the market.

Flexible Customized Battery Solution

This lithium energy storage battery supports flexible custom solutions in capacity, size, logo, LCD display screen, etc., to meet the specific needs of customers.

Specification

Model	ES48400
Nominal Voltage	51.2V
Nominal Capacity	400Ah
Energy	20480Wh
Self Discharge	<3%/month
Dimensions (L x W x H)	927 x 460 x 475 mm (36.5 x 18.1 x 18.7 in)
Weight	198kg (437 lbs)
Terminal Type	Customizable
Case Material	SPCC Steel With 250℃ High Temperature Baking Paint
Enclosure Protection	IP54
Cell Type	Cylindrical
Chemistry	LiFePO4
Recommended Charge Current	80A
Maximum Charge Current	200A
Charge Current (0 to -10 ºC)	≤0.1C
Charge Current (-20 to -10 ºC)	≤0.05C
Recommended Charge Voltage	56.8V-58.4V
BMS Charge Voltage Cut-Off:	62.4V (3.9 ±0.025 vpc, 1~1.5s)
Reconnect Voltage	60.8V (3.8 ±0.05vpc)
Maximum Continuous Discharge Current	200A
Peak Discharge Current	400A (<5s)
BMS Discharge Current Cut-Off	550A (±20A, 9±2ms)
Recommended Low Voltage Disconnect	40V
BMS Discharge Voltage Cut-Off	32.0V (2.0±0.05vpc, 120~180ms)
Reconnect Voltage	36.8V (2.3±0.1vpc)
Discharge Temperature	-20 to 60 ºC (-4 to 140 ºF)
Charge Temperature	0 to 45 ºC (32 to 113 ºF)
Storage Temperature (1 month)	-20 to 60 ºC (-4 to 140 ºF)
Storage Temperature (3 months)	-20 to 45 ºC (-4 to 113 ºF)
Storage Temperature (6 months)	-20 to 25 ºC (-4 to 77 ºF)

Polinovel Lithium Battery Benefits

High Quality Battery Cells

Adopt top-grade lithium iron phosphate battery cells that offer significant advantages, including improved charging efficiency, zero maintenance and the ability to deep discharge while maintaining power.

Long Cycle Life

Polinovel lithium batteries provide reliable and adequate power for deep cycle use over a long period of time. The extended lifespan makes

the batteries an excellent choice for many applications that require long-lasting power.

Advanced Safety Features

The built-in BMS protects the battery from extreme temperatures, overcharging, over-discharging, and short circuits to ensure

durability and reliability.

Solid Product Warranty

Polinovel is a reputable LFP battery supplier

that offer a reliable warranty that covers the performance and life of the battery products, giving consumers peace of mind knowing that they can trust the quality of Polinovel lithium batteries.

Built-in BMS Protection

Over Charge/Discharge Protection

Monitors the battery voltage and ensures that it does not exceed or fall below a certain value to prevent over charge/discharge.

Temperature Protection

Monitors the temperature of each cell and protects the battery if the temperature exceeds/goes below a preset threshold.

Short Circuit Protection

Interrupts the flow of electricity to prevent any further damage after detecting a short-circuit.

Cell Balancing

Ensures all the cells are kept at the same voltage or SOC and helps to extend the life of the battery.

Polinovel Promises

High-performance Battery Solutions

Our team of experts thoroughly analyzes market needs and actively explores new technologies to create innovative lithium battery solutions. Our lithium ion battery products are manufactured using state-of-the-art technology and strict quality control measures to ensure they offer superior performance and great reliability.

Quality Assurance

As a reliable Li ion battery supplier, we offer products that meet global standards. Our lithium battery products are certified with CE, MSDS, RoHS, and UN38.3 certifications. When you opt for our products, be assured that quality and safety is our utmost concern.

Exceptional Customer Service

Our commitment is to provide excellent customer service from beginning to end. Our team has a wealth of experience and is focused on providing the most satisfying experience for our customers. We offer quick and effective service, whether it's responding to product inquires, assisting with orders, or dealing with technical issues.

On-time Delivery

As an experienced LFP battery supplier in the industry, we have an exceptional supply chain system and fast logistics. We are committed to providing efficient delivery to ensure that our customers receive their orders on time.