Power Maxma 445
Power Maxma 445
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Unlimited lifetime support, always available.

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SKU  PES-SPS-SOL-14474

Power Maxma 445

Power Maxma 445

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

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truck
In Stock

Get yours today!

truck
9+ sold

In the last 7 days

truck
Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

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What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Power Maxma 445 445W Monocrystalline Solar Panel

Model 445 | Monocrystalline | 445W Mono Cell Module | Mono | 1500V System Voltage

445 Wp
Max Power Output
20.1%
Module Efficiency
PERC
Monocrystalline Technology

Product Overview

The Power Maxma 445 is a high-performance monocrystalline solar panel designed for efficient energy generation. It uses PERC technology to improve light capture and power output across a wide range of operating conditions. With a rated capacity of 445 Wp and panel efficiency of 20.1%, it is built for dependable performance in residential and commercial solar installations. The module offers a 10-year product warranty and a 25-year power warranty. Its robust construction supports long-term stability, while the compact 24 kg design helps simplify handling and installation.

Key Benefits

High power output: The module delivers 445 Wp for strong daily energy production.

Efficient PERC design: PERC technology helps improve performance and enhances energy capture.

Reliable warranty coverage: A 10-year product warranty and 25-year power warranty add peace of mind.

Strong system compatibility: The 1500V maximum system voltage supports modern solar system designs.

Durable installation features: IP68 junction box protection and MC4 connectors support secure outdoor use.

How It Works

This solar panel converts sunlight into usable electricity through monocrystalline silicon cells. The PERC structure improves how the module absorbs light and converts it into power. That helps the panel maintain strong performance during everyday use. The electrical design is balanced for stable output, while the frame and protection components support long service life. The panel is suitable for systems that need reliable generation, efficient operation, and straightforward integration. Its specifications show a design focused on consistent output, safe system matching, and dependable performance over many years.

Sunlight capture: Monocrystalline cells absorb solar radiation and begin the energy conversion process. The PERC layer helps improve light utilization and overall efficiency.

Electrical generation: The module produces direct current electricity at 41.2V Vmpp and 10.81A Impp. This output supports efficient string design and stable system performance.

System integration: The 1500V maximum system voltage and 20A series fuse rating support safe installation planning. MC4 connectors also help simplify connection during setup.

Technical Specifications

Brand Power Maxma
Model Number 445
Technology PERC
Cell Type Monocrystalline
Maximum Power (Pmax) 445 Wp
Power Range 430 ~ 450 Wp
Panel Efficiency 20.1%
Efficiency Range 19.5 ~ 20.4%
Voltage at Maximum Power (Vmpp) 41.2 V
Current at Maximum Power (Impp) 10.81 A
Open Circuit Voltage (Voc) 49.8 V
Short Circuit Current (Isc) 11.4 A
Power Tolerance 0 ~ +1%
Temperature 44.4±2 °C
Temperature Coefficient of Pmax -0.36%/°C
Temperature Coefficient of Voc -0.28%/°C
Temperature Coefficient of Isc 0.05%/°C
Maximum System Voltage 1500 V
Series Fuse Rating 20 A
Panel Dimension (H/W/D) 2108x1048x40 mm
Weight 24 kg
Junction Box Protection Class IP68
Connector Type MC4

Certifications & Compliance

Certifications: Manufacturer-tested for solar module performance and outdoor use.
Inverter Compatibility: Suitable for standard grid-tied and off-grid solar system designs with MC4 connections.
Environmental: IP68 junction box protection supports reliable operation in demanding conditions.
Warranty: 10-year product warranty and 25-year power warranty, with 81.4% total degradation rate and 0.74% annual degradation.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Power Maxma 445 445W Monocrystalline Solar Panel

Model 445 | Monocrystalline | 445W Mono Cell Module | Mono | 1500V System Voltage

445 Wp
Max Power Output
20.1%
Module Efficiency
PERC
Monocrystalline Technology

Product Overview

The Power Maxma 445 is a high-performance monocrystalline solar panel designed for efficient energy generation. It uses PERC technology to improve light capture and power output across a wide range of operating conditions. With a rated capacity of 445 Wp and panel efficiency of 20.1%, it is built for dependable performance in residential and commercial solar installations. The module offers a 10-year product warranty and a 25-year power warranty. Its robust construction supports long-term stability, while the compact 24 kg design helps simplify handling and installation.

Key Benefits

High power output: The module delivers 445 Wp for strong daily energy production.

Efficient PERC design: PERC technology helps improve performance and enhances energy capture.

Reliable warranty coverage: A 10-year product warranty and 25-year power warranty add peace of mind.

Strong system compatibility: The 1500V maximum system voltage supports modern solar system designs.

Durable installation features: IP68 junction box protection and MC4 connectors support secure outdoor use.

How It Works

This solar panel converts sunlight into usable electricity through monocrystalline silicon cells. The PERC structure improves how the module absorbs light and converts it into power. That helps the panel maintain strong performance during everyday use. The electrical design is balanced for stable output, while the frame and protection components support long service life. The panel is suitable for systems that need reliable generation, efficient operation, and straightforward integration. Its specifications show a design focused on consistent output, safe system matching, and dependable performance over many years.

Sunlight capture: Monocrystalline cells absorb solar radiation and begin the energy conversion process. The PERC layer helps improve light utilization and overall efficiency.

Electrical generation: The module produces direct current electricity at 41.2V Vmpp and 10.81A Impp. This output supports efficient string design and stable system performance.

System integration: The 1500V maximum system voltage and 20A series fuse rating support safe installation planning. MC4 connectors also help simplify connection during setup.

Technical Specifications

Brand Power Maxma
Model Number 445
Technology PERC
Cell Type Monocrystalline
Maximum Power (Pmax) 445 Wp
Power Range 430 ~ 450 Wp
Panel Efficiency 20.1%
Efficiency Range 19.5 ~ 20.4%
Voltage at Maximum Power (Vmpp) 41.2 V
Current at Maximum Power (Impp) 10.81 A
Open Circuit Voltage (Voc) 49.8 V
Short Circuit Current (Isc) 11.4 A
Power Tolerance 0 ~ +1%
Temperature 44.4±2 °C
Temperature Coefficient of Pmax -0.36%/°C
Temperature Coefficient of Voc -0.28%/°C
Temperature Coefficient of Isc 0.05%/°C
Maximum System Voltage 1500 V
Series Fuse Rating 20 A
Panel Dimension (H/W/D) 2108x1048x40 mm
Weight 24 kg
Junction Box Protection Class IP68
Connector Type MC4

Certifications & Compliance

Certifications: Manufacturer-tested for solar module performance and outdoor use.
Inverter Compatibility: Suitable for standard grid-tied and off-grid solar system designs with MC4 connections.
Environmental: IP68 junction box protection supports reliable operation in demanding conditions.
Warranty: 10-year product warranty and 25-year power warranty, with 81.4% total degradation rate and 0.74% annual degradation.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing
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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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Customers rate us 4.3/5 based on 4 reviews.