Half-cell Monofacial Module 650W – 670W

Short Description:

PV module power: 650W, 655W, 660W, 665W, 670W
Technology: Half-cell Monofacial Module
Solar Cell: Monocrystalline silicon 210 mm
No. of Cells: 132 (6 × 22)
MAX. Efficiency: 21.60%
Dimensions: 2384 × 1303 × 35 mm (85.5 × 51.3 × 1.4 inches)
Weight: 34.5 kgs (69.4 lbs.)
Product warranty: 12 Year

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Monocrystalline solar panels

Of all types of solar panels, monocrystalline solar panels typically have the highest efficiency and power capacity. The efficiency of monocrystalline panels can range between 17% and 22%. As monocrystalline solar cells are made from Monocrystalline silicon, electrons can flow through the cells more easily, which makes photovoltaic cells more efficient than other types of solar panels. The higher efficiency of monocrystalline solar panels means that they require less space to achieve a given power capacity. As a result, monocrystalline solar panels typically have a higher rated power output than polycrystalline or thin-film modules.

Reduction of resistance losses

Solar PV modules inevitably introduce some power losses when converting solar energy into electricity. These losses are all derived from resistive losses. With the half-cutting process of the solar panels, the current generated by each cell is reduced by half. Lower currents significantly reduce resistance losses as the current passes through the cells and wires of the solar cell pull.

Higher shade tolerance

Solar PV modules using the half-cut process will have greater resistance to shadowing. Half-cut cells are internally wired in series, but because panels made from half-cut cells have double the number of cells, the number of individual cell rows is also doubled. Due to this particular way of wiring it allows him to allow panels built with half-cut cells to lose less power when individual cells are shaded, as a single shaded cell can only eliminate one sixth of the total power output of the panel. The effect of shadows is therefore significantly reduced for this type of PV module.

Maxbo's half-cut process photovoltaic modules

Maxbo has been involved in the research of the half-cutting process for many years and identified the advantages and trends of the process early on. The first solar PV module with a half-cut process was launched in 2015 and has been developed to reduce its cost. Maxbo has since shifted most of its manufacturing to half-cut solar panels and has reduced the share of conventional solar panels. We hope we can provide our customers with even higher quality, efficient and durable products.



PV module power 650W 655W 660W 665W 670W
Electrical Characteristics Testing Condition STC NMOT STC NMOT STC NMOT STC NMOT STC NMOT
Maximum Power (Pmax/W) 650 490.3 655 494.1 660 497.9 665 501.7 670 505.5
Optimum Operating Voltage (Vmp/V) 37.65 35.2 37.85 35.4 38.05 35.6 38.25 35.7 38.45 35.8
Optimum Operating Current (Imp/A) 17.27 13.92 17.31 13.96 17.35 13.99 17.39 14.07 17.43 14.1
Open Circuit Voltage (Voc/V) 45.65 43 45.85 43.2 46.05 43.4 46.25 43.5 46.45 43.7
Short Circuit Current (Isc/A) 18.27 14.7 18.31 14.73 18.35 14.76 18.39 14.84 18.43 14.87
Module Efficiency (%) 20.9 21.1 21.2 21.4 21.6
Mechanical Characteristics MAX EFFICIENCY 21.20%
Solar Cell Monocrystalline silicon 210 mm
No. of Cells 132 (6 × 22)
Dimensions 2384 × 1303 × 35 mm (85.5 × 51.3 × 1.4 inches)
Weight 34.5 kgs (69.4 lbs.)
Front Glass 3.2 mm (0.126 inches) fully tempered glass
Output Cables 4.0 mm2 ,
(-) 350 mm and (+) 160 mm in length or customized length
Junction Box IP68 rated (3 bypass diodes)
Operating Module Temperature  -40 °C to +85 °C
Maximum System Voltage 1500 V DC (IEC)
Maximum Series Fuse Rating 30 A
Power Tolerance 0/+5 W
Temperature Characteristics Nominal Module Operating Temperature (NMOT) 42 ± 2 °C
Temperature Coefficient of Pmax  -0.34%/°C
Temperature Coefficient of Voc  - 0.26%/°C
Temperature Coefficient of Isc 0.050%/°C
Packing Configuration Container 40 ’ HC
Pieces per container 558


Current-Voltage & Power-Voltage Curve (410S)




Certifications and Standards

CE IEC 61730 IEC 61215
SA 8000 Social Responsibility Standards
ISO 9001 Quality Management System
ISO 14001 Environment Management System
ISO 45001 Occupational Henlth and Safety
IEC TS 62941 Guideline for module design
qualification and type approval


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