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JA Solar 385W Solar Panel 72 Cells JA-JAM72-S09-385PR Wholesale 27 panels per pallet (min 5 pallets)

$0.21 /pw
Save $0.20
$80.86 /panel
(135 pcs)
Minimum order – 5 pallets

We have changed the number of solar panels to ensure timely delivery.

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Your ZIP Code 20149
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All JA Solar products All 385 Watt Panels



Rated Power Output 385 W
Voltage (VOC)49.04 V
Maximum String Voltage 1000/1500V
Number of cells72
Cell TypeMonocrystalline
Rated Efficiency19.3%
Connector TypeMC4 or MC4 compatible
Backsheet Colorwhite
Frame Colorsilver
Dimensions LxWxH78.26 × 39.56 × 1.57 in
Weight49.92 lbs
Pallet Qty27
ManufacturerJA Solar
Manufacturer Part #JA-JAM72-S09-385PR
Operating Temperatures -40 °F to +185 °F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid

About product

JA solar 385 watt Solar Panel 72 cell module. This high-performance PV module, powered by high-efficiency PERCIUM cells, offers the advantages of higher power output, reduced shading effect, better temperature-dependent performance, lower risk of hot spot, and enhanced tolerance for mechanical loading.

  • 385W Power Output
  • 19.3% Module Efficiency
  • QC4 Connectors
  • Low temperature coefficient
  • 5 busbar solar cell design
  • Excellent low-light performance
  • Silver frame, white back

Higher Efficiency 19.3%

JA Solar 385w Solar Panel provides higher power output and greater energy harvest due to high-efficient PERC cell technology. Moreover, the module includes five busbar cell design, which improves low light performance.

Great Performance at High Temperatures

Lower temperature coefficient (-0.3%/°C) allows the panel to perform at high levels even at extremely high temperatures, which means more energy throughout the day.

Quality and Reliability

JA Solar has been considered Top Performer over the last years according to the PVEL Scorecard. The company conducts long-term reliability tests (mechanical load, HAST, thresher, etc.) and environment endurance tests (ammonia resistance, salt mist spray, damp-heat climate, etc.) which guarantee reliability of the products.

Low Degradation

According to the tests conducted by TÜV SÜD, JA Solar 385w Solar Panel demonstrated less than 1% power degradation after experiencing temperatures of 85 degrees Celsius, 85% relative humidity, and 1,000 volts of system bias voltage, for a duration of 96 hours.

72 High-Efficiency Cells

The panel is assembled with 72 (6 x 12) monocrystalline cells to ensure bigger solar energy yields.

Maximum 25-Year Warranty

JA Solar has an impressive 12-year product and 25-year performance warranty for all of their solar panels. The performance of JA Solar 385w S09 Mono PERC is warrantied for 83.1%.


78.3" x 40" x 1.58"


49.92 lbs

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How much is shipping and how long is delivery?
Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.
What is the difference between low price panels and top price panels?
With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.
What are the dimensions of the panel?
Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.
How long is the warranty on the panel?
In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.
Which panels do you recommend for RV, marine?
We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.
Can this panel be used with a 12v system?
Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.
Can I pick up this panel from your fulfillment center to save on shipping?
Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.
How do I connect these panels?
To achieve the best system efficiency, panels should be connected in series to create higher voltage.
How many panels do I need?
This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.
Do you offer discounts?
We do offer discounts for orders of over 50 units. Please contact us for details.
How do I build a solar system?
Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.
How do solar panels compare?
Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.
Can I build a solar system by myself as a Do It Yourself project?
Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.
Can I connect and charge my solar panel battery directly with the solar panel?
We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.
Can I drill holes into the aluminum frame for mounting?
We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.
Do solar panels require maintenance? Can I wash my solar panel?
Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.
Will my panel produce power in an overcast condition?
While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.
Will my panels produce power if covered with snow?
Solar panels cannot produce electricity if covered with snow.
What is the best direction for a solar panel to face?
The best direction for a solar panel to face is the South