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Renogy Portable E.Flex Monocrystalline 5W Solar Panel with USB Port for Charging, Hiking and Biking

4.2 out of 5 stars 827 ratings

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5W
Black
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  • HIGH EFFICIENCY - The built-in monocrystalline solar cells give maximum efficiency and the new auto-optimization charging feature allows for a continuous charge the moment you are back in the sun.
  • NO CHARGE DELAY – You can move this charger in and out of the sun and it will automatically determine your charging requirements and recover without any charge delay for your devices.
  • ULTRA THIN - This charger only weighs 8.7 ounces, making it easy to transport.
  • EASY ATTACHMENT - Includes carabiners and 4 suction cups for convenient traveling and set up.
  • PORTABLE - Super lightweight backup charger that won’t leave you stranded. Keep one in the car or backpack just in case.
  • To enhance your user experience, we recommend you pair this product with a power bank

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From the manufacturer

Renogy E.Flex 10W Mono Solar Panel Renogy E.FLEX 5W Plus Solar Panel Renogy E.FLEX 10W Plus Solar Panel Renogy E.Flex 5W Mono Solar Panel
Model E.Flex 10 E.Flex 5 Plus E.Flex 10 Plus E.Flex 5
Maximum Power 10W 5W 10W 5W
Power Output 5V2A 5V1A 5V2A 5V1A
Dimensions 9.5x12.2x0.13 in 10.3x6.3x0.16 in 13.4x10.3x0.08 in 9.5x5.9x0.16 in
Weight 13oz 5.6oz 11.2oz 6.7oz
Renogy-E.Lumen Renogy-E.TUNES
Frequently Used Together Renogy E.Lumen Multi-Functional Solar Power & USB Rechargeable Flashlight Renogy - E.TUNES - Portable Solar Power Wireless Bluetooth Outdoor Speaker

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Renogy Portable E.Flex Monocrystalline 5W Solar Panel with USB Port for Charging, Hiking and Biking
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Customer Rating 4.2 out of 5 stars (827) 3.8 out of 5 stars (348) 4.5 out of 5 stars (3106) 4.6 out of 5 stars (833) 4.7 out of 5 stars (27917) 4.7 out of 5 stars (59256)
Price Unavailable $19.99 $69.99 $9.99 $21.99 $24.99
Shipping FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime FREE Shipping. Details FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime
Sold By Docerlady BigBlue-US Brilex AnkerDirect AnkerDirect
Color Black 10W-Black Blue Black Black
Connector Type usb USB USB Usb usb micro usb, usb type c, lightning
Item Dimensions 9.5 x 5.9 x 0.16 inches 10.2 x 5.5 x 0.1 inches 11.1 x 6.3 x 1.34 inches 3.3 x 2 x 0.9 inches 5.87 x 2.68 x 0.55 inches 2.36 x 3.62 x 0.87 inches

Product description

Size:5W  |  Style:Black

The Renogy E. Flex5 is the perfect companion to the off-grid Traveler. With a water-resistant & durable exterior, This panel can go anywhere you do! It uses Auto-optimization charging to recover reduced power that is caused by shade. When you're Back in the sun your E. Flex5 will automatically Determine your charging requirements & recover. For flexibility with mounting, two carabineers & four suction cups are included. Charge any portable USB device with this convenient new power source!

Product information

Size:5W  |  Style:Black

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Customer reviews

4.2 out of 5 stars
4.2 out of 5
827 global ratings
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Top reviews from the United States

Reviewed in the United States on January 25, 2019
Size: 10WStyle: BlueVerified Purchase
31 people found this helpful
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Reviewed in the United States on November 13, 2017
Size: 5WStyle: BlueVerified Purchase
44 people found this helpful
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Reviewed in the United States on August 23, 2017
Size: 5WStyle: BlueVerified Purchase
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5.0 out of 5 stars Good charger for base camp, not as good on the trail. (5w version). UPDATED.
By Donkey on August 23, 2017
I've taken this charger on 3 camping trips and 2 backpacking trips so far. Normally I use this solar charger with a battery bank. With my phone the screen comes on every time a charger is connected or disconnected, which happens when I move from sun to shade or back again when hiking the trail. This makes my phone discharge even faster than if i just left the screen off. With a battery bank this is not a problem. When I get to camp I normally plug my phone directly to the panel, provided that the sun is still out and there is no tree cover. The 5w version (with a battery bank) is good for keeping one phone charged when on the trail and good sky at camp indefinitely, 2-3 phones if you have a stationary place to aim it at the sun all day. I've used it in light rain and on a kayak, the panel got wet but not the charge port. Did not break or lower performance. Charging power does get lower with light cloud cover and may stop in heavy dark cloud cover. The charger stopped working during the 2017 total solar eclipse.

EDIT 07/11/2021: Since buying this I have taken it on MANY trips. but, during a long Bikepacking trip the panned unexpectedly stopped working. I don't think it was during the rain, probably the crash. Upon getting home and a VERY close inspection I noticed VERY tiny cracks across many of the stripes. I was never really gentle with the panel but seems like flexing is something that it really doesn't like. Not the panels fault, it's made for light weight, not impact resistance. So that sucks. But even after several years of use it doesn't look like there's another panel that I would pick over it. I'm probably going to end up purchasing another... ?

The only thing I would change on this panel is to flip the USB port so it points under the panel. That would make it easier to keep the connection ports dry when it gets wet out. I had a very heavy rain kill a battery pack even when the panel kept kicking.

Not paid for this review but if Renogy is listening I won't stop you from sending me free stuff.
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37 people found this helpful
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Reviewed in the United States on February 25, 2019
Size: 5WStyle: BlueVerified Purchase
22 people found this helpful
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Reviewed in the United States on November 28, 2017
Size: 5WStyle: BlueVerified Purchase
21 people found this helpful
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Top reviews from other countries

M. Ross
4.0 out of 5 stars Excellent - When used within its limitations
Reviewed in the United Kingdom on December 1, 2018
Size: 5WStyle: BlackVerified Purchase
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4.0 out of 5 stars Excellent - When used within its limitations
Reviewed in the United Kingdom on December 1, 2018
I bought the 5W panel for a recent trip to the Himalaya. Initially I was a bit sceptical that the small panel would meet my needs, but over 4 weeks trekking in the mountains, when combined with a backup battery pack, I had no probems keeping two iPhone 5c phones charged and a Kindle.

The panel does have its limitations - it needs clear skies (so of limited use in typical UK weather) and to be pointing more or less directly towards the sun (so walking with it on the back of a rucksack results in a low charge rate). When set up fully into sun the panel charged my phone battery at 40% per hour, including when stuck with the supplied suckers to an into sun window.

Drawbacks when charging the iPhone were regular "This device may not be supported" messages. Also every time a cloud passed the sun or the shadow from a tree obstructed the sun, then the panel stops/starts charging giving a "ding" & vibrate from the phone and switching the screen on for 5 seconds - these annoyances were reduced by dimming the screen, switching to silent mode & toggling off "vibrate on silent", but of course that meant incoming calls could not be heard (if you have a phone signal in the mountains that is!). Hence only 4 stars.

I would definitely recommend the 5W panel for those wanting a light weight and long term charging solution, but it needs to be used in the right climate in combination with a back-up battery pack to cater for cloudy days.
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3 people found this helpful
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Joel
5.0 out of 5 stars It works well and best in bright Sunshine fast charging.
Reviewed in the United Kingdom on April 8, 2021
Size: 10WStyle: BlackVerified Purchase
BearPower
5.0 out of 5 stars Neatly designed solar panel
Reviewed in the United Kingdom on April 25, 2019
Size: 10WStyle: BlackVerified Purchase
Miss C M Tuke
5.0 out of 5 stars Surprisingly good!
Reviewed in the United Kingdom on June 19, 2019
Size: 10WStyle: BlackVerified Purchase
jannerfish
5.0 out of 5 stars Free device charging (Sun not included)
Reviewed in the United Kingdom on April 19, 2019
Size: 5WStyle: BlueVerified Purchase
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5.0 out of 5 stars Free device charging (Sun not included)
Reviewed in the United Kingdom on April 19, 2019
Unobtrusive on stuck on window with sucker grips (supplied) in room that isn't used much in house. Have the Carabiners (also supplied) on still from a bike ride that kept my phone fully charged for navigating. Plan on using for upcoming camping trip. Well worth the money.
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