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Newpowa 250W 15V Monocrystalline Solar Panel High-Efficiency Mono Cells Suitable for 12V Off-Grid Charge System Battery for RV Marine Boat 250Watts (250W)

4.6 4.6 out of 5 stars 660 ratings
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250W

Purchase options and add-ons

Brand Newpowa
Material Monocrystalline Silicon
Product Dimensions 54.72"L x 34.45"W x 1.38"H
Item Weight 29.1 Pounds
Efficiency High Efficiency

About this item

  • 【New Design】Top Selling 250W 15V using 9BB 166mm High Efficiency Solar Cells and cutting-edge encapsulating material with multi-layered sheet laminations.Higher cell efficiency by using 9 busbars technology. Compared with 5BB solar panel cells, the 9BB solar cell has a better and longer lifespan.
  • 【Dimension】54.72*34.45*1.38inch. High winds (2400PA) and snow loads (5400PA).
  • 【Maximum power (Pmax)】250W, Voltage at Pmax (Vmp):23.83V, Current at Pmax (Imp): 10.51A.
  • 【Easy Installation】Diodes are pre-installed in the junction box, with a pair of pre-attached 3ft solar connector cable.
  • 【Warranty】2-year limited material and workmanship warranty. 10-year 90% output warranty. 25-year 80% output warranty.
See more product details

Customer ratings by feature

Easy to install
4.6 4.6
Weatherproof
4.6 4.6
Quality of material
4.5 4.5
Value for money
4.3 4.3

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$229.99
Get it as soon as Tuesday, Apr 2
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Sold by Newpowa America and ships from Amazon Fulfillment.
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$33.99
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Newpowa 250W 15V Monocrystalline Solar Panel High-Efficiency Mono Cells Suitable for 12V Off-Grid Charge System Battery for RV Marine Boat 250Watts (250W)
Newpowa 250W 15V Monocrystalline Solar Panel High-Efficiency Mono Cells Suitable for 12V Off-Grid Charge System Battery for RV Marine Boat 250Watts (250W)
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Price-8% $229.99
Typical:$249.99
$79.99$159.99-27% $189.99
List:$259.00
$219.99-23% $169.99
List:$220.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Friday, Apr 5
Get it as soon as Tuesday, Apr 2
Customer Ratings
Value for money
4.3
4.5
3.7
3.5
4.5
Easy to install
4.6
4.7
4.7
4.6
Weatherproof
4.6
4.5
4.5
4.4
Tech Support
3.3
4.0
3.4
4.6
Light weight
4.6
4.2
4.6
4.2
Sold By
Newpowa America
Newpowa America
FivstaSola
Alrska
SUNRICH ENERGY
JJNSolar
connector type
MC4
MC4
MC4
MC4
MC4
Solar Connector
material
Monocrystalline Silicon
Monocrystalline Silicon
Monocrystalline Silicon
Monocrystalline Silicon
Tempered Glass, Aluminum, Monocrystalline Silicon
Monocrystalline
weight
29.1 pounds
13.2 pounds
26.5 pounds
25 pounds

From the brand


Product Description

250w
250W 15V

300*300

200w

123

Easy Installation

  • The panel comes with four easy mounting holes with a diameter of 9x 14mm, and two grounding holes with a diameter of 5mm
  • With a pre-attached 3ft solar connector, the panel can be quickly connected to other items
  • Compatible with Newpowa z-bracket, tilt adjustable mount, and pole/wall bracket, the panel can be installed for various applications

Versatile

  • Supported by a wide range of mounting options including flat surface, pole and wall installation
  • Common applications includes RV, camper, SUV, marine, residential rooftop, remote farm, disaster relief, traffic signs, etc.

High-efficiency

  • Uses high-performance Mono cells encapsulated in EVA (ethylene-vinyl-acetate)
  • Pre-installed bypass diodes inside junction box that minimize power drops caused by shading

2

Specifications

  • Dimension: 54.72*34.45*1.38 inches
  • Weight: 29.1lbs
  • Max Power Output(W): 250W
  • Voltage MPP Vmp(V): 23.83V
  • Current MPP Imp(A): 10.51A
  • Voltage Open Circuit Voc(V): 27.28V
  • Short Circuit Current Isc(A): 11.09A

5

FAQ

1: Does a Solar Panel produce full power?

A: In most cases, it is normal for a solar panel to not be able to provide its full nominal power.

Factors affecting the performance of solar panels:

Peak Sun Hours, Sunlight Angle, Operating Temperature, Installation Angle, Panel Shading, Adjacent Buildings Etc...

2: How to test a solar panel?

A: The ideal conditions: Test in the noon, under a clear sky, panels should be at 25 degrees tilted towards the sun, and the battery is at a low state/less than 40% SOC. Disconnect the solar panel from any other loads, using a multimeter to test the panel's current and voltage.

3: How does temperature affect solar panel efficiency?

A: Solar panels are generally tested at about 77°F/25°C and are rated to perform at peak efficiency between 59°F/15°C and 95°F/35°C. Temperature going up or down will change the efficiency of the panels. For example, if the temperature coefficient of power is -0.5%, then the panel maximum power will be reduced by 0.5% for every 50°F/10°C rise.

4: How to install our solar panels using different brackets?

A: There are mounting holes on the panel frame for easy installation using a variety of brackets. Most compatible with Newpowa's Z-mount, tilt-adjustable mount, and pole/wall mount, making panel mounting suitable for a variety of applications.

5: Can I connect different solar panels together?

A: Though mixing different solar panels is not recommended, the mismatch can be achievable as long as each panel’s electrical parameters (voltage, current, wattage) are carefully considered.

2 3 1 6 220W
100W Compact Solar Panel 100W Mono Solar Panel 180W Mono Solar Panel 200W Mono Solar Panel 220W Mono Solar Panel
Customer Reviews
4.5 out of 5 stars
451
4.6 out of 5 stars
1,274
4.5 out of 5 stars
267
4.6 out of 5 stars
755
4.6 out of 5 stars
755
MAX Watt 100W Compact 100W 180W 200W 220W
Dimensions (in.) 28.54x27.76x1.18 38.58x20.87x1.18 58.35x26.57x1.38 55.28x27.76x1.38 56.69x30.12x1.38
Weight (lbs) 13 13.2 24.5 24 26.62
40A MPPT B07Y544R8F 700 2000 1
40A MPPT Regulator Adjustable Solar Panel Tilt Mount Brackets 700W Power Generator 2000W Pure Sine Wave Inverter 2 to 1 parallel connector
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4.3 out of 5 stars
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Solar Charge System Accessories Negative Ground, up to 520/1040W(12/24V), adjustable for Gel AGM,Liquid, Lithium Batteries NPB-400T(40Inch) 700W Portable Solar Generator 2000W Power Inverter DC 12V to 110V AC Pure Sine Wave IP67 Waterproof

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Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Newpowa 250W 15V Monocrystalline Solar Panel High-Efficiency Mono Cells Suitable for 12V Off-Grid Charge System Battery for RV Marine Boat 250Watts (250W)


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
660 global ratings

Customers say

Customers like the power, ease of installation, value, quality and size of the solar panel. For example, they mention it delivers the power they need, it's easy to mount and the connections are easy. That said, some appreciate the size and performance.

AI-generated from the text of customer reviews

62 customers mention47 positive15 negative

Customers like the quality of the solar panel. They say it is well made, durable, and has a sturdy aluminum frame. Some customers also mention that the material and processing appear flawless. Overall, customers are satisfied with the quality and performance of the product.

"...The first six I ordered worked so well that I got four more. Well made, no problems at all, and all of them worked exactly as specified...." Read more

"I purchased the 240watt size. The major things to know. The frame is very study...." Read more

"...Panels are very well packaged and no sign of external damage to the boxes. Now have every thing I need to really try these panels...." Read more

"...After receiving, the frame had a big dent from shipping. The frame is not as robust as the HQST units...." Read more

40 customers mention37 positive3 negative

Customers are satisfied with the performance of the solar panel. They mention that it works well, is heavy duty, and meets or exceeds its ratings easily. Some say that it's used on boats and keeps their house bank charged.

"...Well made, no problems at all, and all of them worked exactly as specified. The packaging they come in is almost bullet proof as well...." Read more

"...In full sun it works wonderfully and output is high. In full shade (when clouds pass over, output is zero)...." Read more

"...any normal day with 3 of these 210w panels ,Off-Grid and very pleased with that performance...." Read more

"...Instead of tracking, I elected to add a 4th panel. The system works great. And the panels work great...." Read more

27 customers mention21 positive6 negative

Customers like the power of the solar panel. For example, they say it delivers the power they need, it produces enough power to operate their pool pump, and the connections are easy. Some mention that the rated power output is accurate.

"...In excellent weather conditions they are putting out almost their full rated power, even up here in Wisconsin in less than ideal circumstances." Read more

"...In full sun it works wonderfully and output is high. In full shade (when clouds pass over, output is zero)...." Read more

"...Power output has always been great, even in mediocre conditions. The build quality is good, and I haven’t had any issues with them...." Read more

"...That being said, these panels do make electricity from the sun. It's not their fault that the people selling them suck...." Read more

19 customers mention19 positive0 negative

Customers appreciate the value of the solar panel. They mention that the charging capability is great, and the price and quality are both great.

"...The briefcase twin 100 is more compact, easier to move around, and better value. I will end up moving the Newpowa to my shed solar system." Read more

"...reviews, I decided that the 210W Newpowa was not only the best value available, but also the best solution for our limited roof space...." Read more

"...Overall these are great panels. Serious value for the price and I highly recommend." Read more

"...The price is reasonable.Thanks" Read more

10 customers mention10 positive0 negative

Customers find the installation of the solar panel to be easy. They mention that the panel is easy to mount, with pre-drilled mounting holes on the panel frame. Customers also say that the connections are easy.

"...Placed both ICECO units on 36" SS shelving on wheels. Easy to work with and roll around when needed." Read more

"...So far I like the build quality and the size (easy to handle)...." Read more

"...The connections are easy and the panels produce enough power to operate my pool pump even on cloudy overcast days." Read more

"...What's special about this is it was 6 months after our purchase. Easy to work with." Read more

10 customers mention10 positive0 negative

Customers like the size of the solar panel. They say it fits well, is easy to handle, and is a great fit on a transit roof. The aluminum frame makes it easy to suit them to your needs. Some customers also mention that the panel is huge and the best solution for limited roof space.

"...The briefcase twin 100 is more compact, easier to move around, and better value. I will end up moving the Newpowa to my shed solar system." Read more

"...was not only the best value available, but also the best solution for our limited roof space...." Read more

"...Forest in Lake County, CA. So far I like the build quality and the size (easy to handle)...." Read more

"...The aluminum frame makes it easy to suit them to your needs. Just drill to your hearts content and mount them up...." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the charging of the solar panel. They mention that it charges well, even on cloudy days, and that it keeps the batteries fully charged. Some say that it's a good charger that keeps their refrigerator running indefinitely.

"...It still charges! This afternoon I noticed my charge controller had stopped charging in full sunlight...." Read more

"...Its how panels work.Great product, pretty sturdy, great charge...." Read more

"...Even on semi cloudy days this panel delivers some respectful charging. I'm a happy camper (Ha!)..." Read more

"...This keeps the batteries fully charged during sunny and cloudy days. I use the panel with a 12V/20Amp charge controller." Read more

Perfect Upgrade Panel for Winnebago View/Navion - Goodbye Generator Noise!
5 Stars
Perfect Upgrade Panel for Winnebago View/Navion - Goodbye Generator Noise!
After a bunch of research and reading a thousand reviews, I decided that the 210W Newpowa was not only the best value available, but also the best solution for our limited roof space.I'm not an expert, but I've installed and tested at least 15 solar panels over the last ten years. For an RV application, shade is an important factor and these panels are as good as the best brand names at handling low sun and shading.(I had to laugh - right after I ordered my Newpowa panels, I called up a friend who's upgrading his large Class A motorhome. This guy is an electronics fanatic, a retired communications engineer who now lives and breathes solar power. When I told him I had ordered the Newpowa 210W panel - I hadn't even told him that I was shopping for new panels - he said that he had also just ordered a bunch for his Class A. There's no better feeling than knowing that others, especially experts, have independently come to the same conclusion.)The narrow width of the Newpowa panels is allowing me to easily install 840 watts (four panels) on our 2021 Navion and I may even find room for one or two more. The new RV's are much more dependent on battery power than prior models, and I refuse to run the noisy generator or be dependent on finding a campground with electrical outlets.And great customer support from Newpowa. When my Amazon shipment was lost, Amazon was quick to make things right and Newpowa stepped in and made sure I got a replacement order fulfilled immediately. You won't get that kind of support (or these prices) from any of the popular consumer-oriented companies. And I didn't even mention that I would be writing an Amazon review.
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Reviewed in the United States on August 12, 2023
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5.0 out of 5 stars Nice Panels~ 210W
Reviewed in the United States on January 23, 2022
I was able to hit 182 Watts after re-alignment, that's about 86% of their rated output ....which is very good. I will be grabbing 2 more of these now that I have tested their performance. (For my MPP Solar 1012LV-MS project). Product came well packaged with no damage, highly recommended.
People need to learn about how these work before they post bad reviews. All panels have a rated wattage output. Example: A 100w panel simply means it can have a 100w DC output under "Optimal" conditions.
This includes unobstructed sunlight/proper angle alignment/power drop in cabling-etc. And the time these panels are in that perfect zone is maybe 5 hours a day. And remember, panels will pull only how much is needed. If your battery is charged and you're only using 150w factoring in inverter efficiency, don't expect panel to pull more wattage than is needed unless you are grid tied...it just doesn't work that way. I get 500-550w on any normal day with 3 of these 210w panels ,Off-Grid and very pleased with that performance. it recharges my 200AH Lifep0 battery from the night before and powers a basic home office at the same time. No issues.
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Reviewed in the United States on June 1, 2022
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Reviewed in the United States on February 19, 2024
Reviewed in the United States on February 19, 2024
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