DJ(520-550)-144M

Name: DJ(520-550)-144M
Brand: Dongjin Power Co., Ltd.

Technology: PERC Dongjin Group is a company dedicated to the production, R&D and sales of lithium battery packs, lead-acid batteries, and lithium battery cells. We have invested and built factories not only in China, but also Bangladesh, Pakistan, India, the Philippines, Turkey, Brazil and other oversea countries, with more than 4,000 employees and a R&D team of more than 80 people. Through 30 years of experience in the battery industry, Dongjin Group is committed to providing domestic and foreign customers with the highest quality products, including: lithium battery packs, lithium battery cells, lead-acid batteries, etc. Products are widely used in solar energy storage, UPS, telecommunications, electric vehicles, outdoor mobile power and other applications.

PERC550 W21.28% eff

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Overview

Key Specifications

Max Power

550 W

Efficiency

21.28%

Product Warranty

10 years

Dimensions

2279 × 1134 mm

Connectors

MC4

Max System Voltage

1500 V

Launch Year

2026

Price

—

Full Specifications

Product Identity

NameDJ(520-550)-144M

ManufacturerDongjin Power Co., Ltd.

CountryChina

CategoryPERC

Cell TypeMonocrystalline

Number of Cells144

Electrical Parameters (STC)

Model	Pmax (W)	Vmpp (V)	Impp (A)	Voc (V)	Isc (A)	Eff (%)

Mechanical Characteristics

Dimensions2279 × 1134 × 35 mm

Weight29 kg

Front GlassAnti-reflection Coating

Back Glass

Frame

Junction BoxIP 68

Output Cables4 mm2

ConnectorsMC4

Mechanical Load0 Pa

Operating & Temperature

Operating Temperature-40°C to 85°C

Max System Voltage1500 V DC

Max Series Fuse Rating25 A

Power Tolerance0 ~ +0.5 %

NMOT45±2 °C

Temp Coeff Pmax-0.35 %/°C

Temp Coeff Voc-0.31 %/°C

Temp Coeff Isc0.05 %/°C

Warranty

Product Warranty10 years

Power Warranty0 years (0% at year 0)

Certifications & Regions

Certifications—

RegionsAsia-Pacific

CountriesChina

Commercial

Price—

Launch Year2026

AvailabilityAvailable