We’re here to get you what you need.
Shop online for pickup or delivery, or visit a store for a safe shopping and service experience.Learn more

Renogy E.FLEX 21 Solar Charger (R21EF-G1) - 21 Watts

Model Number: R21EF-G1
Web Code: 13807035

product image

Overview

Harness the power of the sun to charge your devices with the Renogy E.FLEX 21 solar charger. It uses advanced iSolar technology with an energy conversion efficiency of up to 22%-25% to maximize charging speeds while protecting your devices from overheating. Its portable size and durable nylon construction makes it rugged enough to take anywhere.
$129.99

Sold and shipped by Best Buy

Available to ship

Unavailable for store pickup

This product is currently unavailable to pick up at nearby stores.


Overview

Harness the power of the sun to charge your devices with the Renogy E.FLEX 21 solar charger. It uses advanced iSolar technology with an energy conversion efficiency of up to 22%-25% to maximize charging speeds while protecting your devices from overheating. Its portable size and durable nylon construction makes it rugged enough to take anywhere.
  • iSolar technology delivers the fastest charging speeds possible while protecting your device from overheating
  • Energy conversion efficiency of up to 22%-25% transforms sunlight into 21 watts of usable electric current
  • Auto-optimization function immediately reconnects when sunlight returns after a charging interruption
  • Two USB ports make it easy to connect with your smart phone, tablet, camera, and other devices
  • Engineered with water-resistant nylon for long-lasting durability in any conditions
  • Foldable design is completely portable and features two adjustable kickstands
Charger Type
Others
Colour
Black
Specific Device Compatibility
Smart Phone; Tablet; Action Camera
Output Ports/Connectors
2 x USB Ports
Power Source
21W Solar Panel
Cable Length (m)
0.6 m
Cable Length (ft)
1.97 ft
Works with Google Assistant
No

Dimension

Width
15.8 cm
Height
29 cm
Depth
2.8 cm
Weight
540 g
Width (Inches)
6.22 in
Height (Inches)
11.42 in
Depth (Inches)
1.1 in
  • Renogy E.FLEX 21 Portable Solar Panel
  • 2 x Micro-USB Cable
  • 2 x Carabiner
  • User Guide

There is no manufacturer content to show for this product. Explore the Details & Specs and Customer Reviews sections to learn more.

Rating Breakdown

5

10

4

6

3

2

2

3

1

2

Reviewer Recommendation

78%

Of the 23 reviewers who responded, 18 would recommend this product.

Key Considerations

Averages based on how reviewers feel this product performs.

Quality:
Value:
Ease of Use:

Sort

  • Not what I had hoped.
    Verified BuyerReviewed by Girt - April 24, 2021

    This item was not what I expected and has been returned. I was under the impression that it stored solar power. For example, that I let it sit in full sun, then later in the evening, I could charge my device. In reality, my device needed to be connected while in the sun, but I actually lost battery power while this was connected. I tried it for several days and in full sun. Also, the price had dropped $20 since I had first looked at the item, so I thought I was getting a deal, but it appeared to have been a used item. The packaging was nice and tight, but the area where I plugged the usb to charge my device was scratched a good bit and definitely looked used. I didn't want to purchase an open box item.

    Review originally posted on bestbuy.com

    No, I would not recommend this to a friend.
    Quality:
    Value:
    Ease of Use:

  • This Solar Panel is Awesome!
    Verified BuyerReviewed by Riccardo - August 15, 2020

    I live ‘off the grid’ and this little panel charges my Bluetooth, speaker, my cell phone, my ipod, my rechargeable fan, my Skull Candy headphones, and all my other devices.? It is surprisingly powerful and you can fold this puppy up and backpack with it. No matter where you are, power for your devices is always available during the day........and it’s FREE!!! Leave only footprints, and no carbon behind!!!! I LOVE this little ‘green companion!’ I often think of the simplicity of solar. And while our long ago ancestors used it to their advantage, today we can utilize it to help save our planet. I live on 2-100 watt solar panels, and this Renogy 21 Watt tri-fold is the perfect compliment to my ‘green life!’

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.
    Quality:
    Value:
    Ease of Use:

  • Huge! Made for the boonies, not the city.
    Verified BuyerReviewed by MarilynM - October 15, 2020

    If you are going somewhere that doesn’t have electricity, has adequate sunlight and you’ll have enough time & space to unfold this & let it charge, this product could be a life saver by allowing you to charge your cell phone & call for help. Or a boredom saver by allowing your kids to charge their tablets. I bought this to use when I’m too hurried to wait on my phone to charge fully. That wasn’t a good use for it. I returned this because it was so big. It took up 1/2 of my dashboard when it was unfolded. It needs to be unfolded to get the sun’s rays. It wasn’t practical for me to leave it unfolded for hours so it could charge. I couldn’t drive with it sliding all over my dashboard. It stays overcast in our city a lot so sitting it on the seat in my car wasn’t giving it enough sunlight.

    Review originally posted on bestbuy.com

    Yes, I would recommend this to a friend.
    Quality:
    Value:
    Ease of Use:


See helpful questions and answers from shoppers like you.

See our return policy to find specific return information for this product and steps on how to return in-store or by mail.