51.2V 5kWh Li-ion Battery ESS System

$899.00

1-99 Piece/Pieces
$849.00

100-499 Piece/Pieces
$799.00

≥500 Piece/Pieces

Transportation:: Ocean, Land, Air, Express

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Basic Info

Payment Type:	L/C,T/T,D/P,Paypal
Incoterm:	FOB,CIF,EXW,DDP
Transportation:	Ocean,Land,Air,Express

Product Description

The system is an energy storage device based on lithium-ion battery technology, with the following core parameters:

Voltage level: 51.2V (usually composed of 16 3.2V single cells in series)

Capacity: 5kWh (i.e. 5000 watt-hours, which means the system can store 5 kWh of electricity)

Technology type: It uses lithium-ion batteries (such as lithium iron phosphate LFP or ternary lithium NCM), with high energy density, long cycle life and other characteristics.

Its core function is to achieve the time and space transfer of electric energy through the charging and discharging process, such as charging at low electricity prices, discharging during peak hours, or providing continuous power supply for off-grid devices.

Battery Specification

Item	Parameter
Battery Data
Capacity for assembled cell discharging by 0.2C	≥98Ah
Battery Voltage	≥51.2V
Standard Charge Condition	Charge with 20A constant current and 54V constant voltage,
Standard Charge Condition	charge to 54.75V,continue charging till current decline to ≤0.01C
Standard Discharging Method	0.2C constant current discharge to 40V
Operation temperature and relative humidity range	Charge 0~45℃ 60+25%R.H.
Operation temperature and relative humidity range	Discharge -20~60℃ 60+25%R.H.
Maximum Charge Current	100A
Maximum Discharge Current	100A
Internal Impedance	Assemblage Impedance≤150mΩ
Weight	About 50Kg
Dimensions(THW)(mm)	75970610mm
Cell Data
Nominal Capacity	54Ah*2
Minimum Capacity	106Ah
Nominal Voltage	3.2V
Delivery Voltage	≥3.2V
Charge Voltage	3.65±0.03V
Standard Charging Method	23±3℃,0.2C constant current,3.65V constant voltage charge to 3.65V
Standard Charging Method	continue charging till current decline to ≤0.02C
Standard Discharging Method	0.2C constant current discharge to 2.0V
Cell Internal Impedance	≤1mΩ
Charge Current	0.2C 20A

	0.5C 50A
Maximum Charge Current	1C 108A
Maximum Discharge Current	1.5C 162A
	60±25%R.H.
	Charge 0.2C(0~10℃)/0.5C(10~45℃)
Operation temperature and relative humidity range	60±25%R.H.
	Discharge
	0.2C(-20~5℃)/0.5C(5~60℃)
Storage temperature for a long time	0~45℃
Storage temperature for a long time	60±25%R.H.

Technical advantages:

High energy density: small size, light weight, easy to install.

Long life: The cycle life of lithium iron phosphate battery can reach 6,000 times, reducing the cost of the entire life cycle.

High safety: LFP battery has strong thermal stability and is not easy to explode.

Simple maintenance: maintenance-free design, no memory effect.

Application areas

Home energy storage

Peak-valley electricity price arbitrage: charge at night and discharge during the day to reduce electricity bills.

Backup power supply: power key equipment such as refrigerators and lighting when the power grid is out.

Off-grid power supply: with solar panels, provide continuous power to remote areas.

Commercial and industrial

Demand-side response: participate in grid peak regulation and obtain subsidies.

UPS uninterruptible power supply: protect key loads such as data centers and medical equipment.

Renewable energy matching

Photovoltaic/wind power storage: smooth power generation fluctuations and improve the utilization rate of new energy.

Mobile devices

RV and yacht power supply: provide independent power supply to support air conditioning and electrical appliances.

Maintenance methods and precautions

Daily use

Avoid overcharging and over-discharging: It is recommended to control the discharge depth within 80% and use BMS (battery management system) protection.

Regular equalization charging: once a month to ensure the consistency of the battery pack.

Environmental control: avoid storage in high temperature (>40℃) or low temperature (<0℃) environment.

Long-term storage

Power management: Charge to 50%-60% before storage, and recharge once every 3 months.

Disconnect the load: Avoid self-discharge leading to over-discharge.

Safe operation

Waterproof and moisture-proof: Avoid water or moisture in the battery.

Professional maintenance: Contact the manufacturer in case of failure, do not disassemble by yourself.

BMS monitoring

Real-time monitoring of voltage, current, and temperature to prevent risks such as overcharging, over-discharging, and short circuit.

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51.2V 5kWh Li-ion battery , Power wall balde battery , residential energy storage battery