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popularjk6812 | Staff posted Feb 01, 2026 09:37 AM
popularjk6812 | Staff posted Feb 01, 2026 09:37 AM

100W GRECELL 21.5V Portable Foldable Solar Panel $89.98 + Free Shipping

$90

$160

43% off
Amazon
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Woot via Amazon [amazon.com] has 100W GRECELL 21.5V Portable Foldable Solar Panel (48"x 22" x 0.2"H) on sale for $89.98. Shipping is free.
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About the Poster
Woot via Amazon [amazon.com] has 100W GRECELL 21.5V Portable Foldable Solar Panel (48"x 22" x 0.2"H) on sale for $89.98. Shipping is free.

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Model: GRECELL 100W Solar Panel, 21.5V Portable Foldable Solar Panel 24% High Efficiency with Fast Charger and Adjustable Kickstand for Power Station, Solar Cell Charger for Outdoor Camping RV Van Travel

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Sort: Lowest to Highest | Last Updated 2/27/2026, 11:22 AM
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14 Comments

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Feb 01, 2026 12:55 PM
58 Posts
Joined Nov 2018
MakaronyFeb 01, 2026 12:55 PM
58 Posts
5 stars for breaking the laws of physics! I love how the hiker on last image casts a long, heavy shadow to the left, but the solar panel is apparently made of vampire glass and casts the shadow of a twig. Truly 'portable' design.
1
6
1
Feb 01, 2026 01:01 PM
112 Posts
Joined Dec 2025
mariellef145Feb 01, 2026 01:01 PM
112 Posts
Good price on a 100w solar panel. The 100w ones at harbor freight are $170
1
Feb 01, 2026 01:23 PM
2,532 Posts
Joined Nov 2010
TACO_TraderFeb 01, 2026 01:23 PM
2,532 Posts
21.5 volts? Educate me please.
1
Feb 01, 2026 01:26 PM
197 Posts
Joined Dec 2011
aavmm1010Feb 01, 2026 01:26 PM
197 Posts
Quote from TACO_Trader :
21.5 volts? Educate me please.
20v
Standard for these
Feb 01, 2026 03:35 PM
350 Posts
Joined Nov 2003
sfhondapilotFeb 01, 2026 03:35 PM
350 Posts
Amazon has the 200 W version for $170.

https://www.amazon.com/dp/B0B9SMD...XlpSj&th=1
Feb 01, 2026 03:56 PM
1,002 Posts
Joined Sep 2010
Flawless700Feb 01, 2026 03:56 PM
1,002 Posts
Quote from Makarony :
5 stars for breaking the laws of physics! I love how the hiker on last image casts a long, heavy shadow to the left, but the solar panel is apparently made of vampire glass and casts the shadow of a twig. Truly 'portable' design.
What the heck are you talking about. It's just thin...like anything thin. It looks right to me. His shadow isn't "to the left" it's directly in front of him. The camera is to the side. You alright?
1
Feb 01, 2026 07:21 PM
52 Posts
Joined Feb 2017
brbdealerFeb 01, 2026 07:21 PM
52 Posts
Quote from Flawless700 :
What the heck are you talking about. It's just thin...like anything thin. It looks right to me. His shadow isn't "to the left" it's directly in front of him. The camera is to the side. You alright?
I agree the photo is more realistic than the initial post indicated, but the shadow of the panel also extends to the full length of the hikers shadow. Based on him holding it below his waist I concur on this not meeting Physics/Math 101 standards
1

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Feb 01, 2026 08:25 PM
179 Posts
Joined Apr 2023
TealBorder8536Feb 01, 2026 08:25 PM
179 Posts
Quote from Flawless700 :
What the heck are you talking about. It's just thin...like anything thin. It looks right to me. His shadow isn't "to the left" it's directly in front of him. The camera is to the side. You alright?
I agree with the photo looks a bit weird. The panel left side should be shadowed based on the sunlight direction. However, it's to show the product and probably photo-shopped.
1
Feb 02, 2026 04:02 AM
7 Posts
Joined Dec 2019
CoolWealth4016Feb 02, 2026 04:02 AM
7 Posts
Quote from mariellef145 :
Good price on a 100w solar panel. The 100w ones at harbor freight are $170
HF has the folding 100W for $129
Feb 04, 2026 01:38 PM
176 Posts
Joined Jan 2018
ElatedDirt294Feb 04, 2026 01:38 PM
176 Posts
what is the difference?
https://www.amazon.com/dp/B0B5H1B...XlpSj&th=1

this for $80?
Feb 04, 2026 02:25 PM
1,883 Posts
Joined Oct 2004
PassionsFeb 04, 2026 02:25 PM
1,883 Posts
Lmao you'll never use this. At the beach? Come on fam, don't joke.
Feb 04, 2026 11:01 PM
3,322 Posts
Joined Aug 2006
jottectFeb 04, 2026 11:01 PM
3,322 Posts
Quote from ElatedDirt294 :
what is the difference?
https://www.amazon.com/dp/B0B5H1B...XlpSj&th=1

this for $80?
I believe this is a newer version with a bit better efficiency (24% vs 23.5%) and it provides 21.6V vs only 18V
Feb 06, 2026 02:25 PM
19 Posts
Joined Jan 2019
PurpleOctopus555Feb 06, 2026 02:25 PM
19 Posts
Can anyone confirm that an XT60 cable is included?
Feb 09, 2026 07:38 PM
5,828 Posts
Joined Aug 2004
doemaFeb 09, 2026 07:38 PM
5,828 Posts
Quote from PurpleOctopus555 :
Can anyone confirm that an XT60 cable is included?
doesn't look like it

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