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popularItsSoCheap | Staff posted Aug 04, 2025 09:41 AM
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popularItsSoCheap | Staff posted Aug 04, 2025 09:41 AM

20,000mAh Monocrystalline Solar Portable Power Bank w/ Built-in cables and LED Light: Single $30.99, 2-Pack $53.99 $30.99 + Free Shipping w/ Prime

$31

$70

55% off
Woot!
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Woot [woot.com] has 20,000mAh Monocrystalline Solar Portable Power Bank w/ Built-in cables and LED Light: Single $30.99, 2-Pack $53.99 for $30.99. Shipping is free w/ Prime. Otherwise shipping is $6.
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Woot [woot.com] has 20,000mAh Monocrystalline Solar Portable Power Bank w/ Built-in cables and LED Light: Single $30.99, 2-Pack $53.99 for $30.99. Shipping is free w/ Prime. Otherwise shipping is $6.

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Aug 04, 2025 09:46 AM
40 Posts
Joined Sep 2007
Aug 04, 2025 09:46 AM
SonikkuBlastAug 04, 2025 09:46 AM
40 Posts
that's a lot of zeros
Original Poster
Pro
Deal Hunter
Aug 04, 2025 09:56 AM
2,463 Posts
Joined Sep 2014
Aug 04, 2025 09:56 AM
ItsSoCheapAug 04, 2025 09:56 AM
Original Poster
Pro
Deal Hunter
2,463 Posts
Quote from SonikkuBlast :
that's a lot of zeros

lol, just corrected - thanks for the heads up
Aug 04, 2025 02:07 PM
60 Posts
Joined Jul 2019
Aug 04, 2025 02:07 PM
AdamK1012Aug 04, 2025 02:07 PM
60 Posts
I have no use for this...but it looks so damn fun to own it. I'm imagining all the doomsday scenarios I won't be in
2
Aug 04, 2025 06:45 PM
104 Posts
Joined Dec 2008
Aug 04, 2025 06:45 PM
mjawtAug 04, 2025 06:45 PM
104 Posts
5V x 2.1A = 10.5 watts. This will take take a little less than two and a half hours to charge a standard 5,000mAh battery from 0% to 100%.
1
Aug 04, 2025 07:06 PM
305 Posts
Joined Oct 2008
Aug 04, 2025 07:06 PM
SilentAgnosticAug 04, 2025 07:06 PM
305 Posts
Does anyone even remotely know how many watts the built-in solar panel is (aka how long to charge the battery) ?
Aug 04, 2025 09:16 PM
100 Posts
Joined Dec 2009
Aug 04, 2025 09:16 PM
supergecko007Aug 04, 2025 09:16 PM
100 Posts
Quote from SilentAgnostic :
Does anyone even remotely know how many watts the built-in solar panel is (aka how long to charge the battery) ?
I believe the solar is a trickle charge and not feasible for fully charging the battery from empty.
Aug 04, 2025 09:22 PM
240 Posts
Joined Aug 2017
Aug 04, 2025 09:22 PM
PulpMagicAug 04, 2025 09:22 PM
240 Posts
Quote from SilentAgnostic :
Does anyone even remotely know how many watts the built-in solar panel is (aka how long to charge the battery) ?
If it is similar to a different power bank I own that is about the same physical size, it is probably 300 mA and would take days in the full sunlight to recharge the battery fully depleted. It will help a little bit if camping when full sunlight is available. O.3 A @ 3.7 V = 1.11 watts X 8 hours 8.88 / 3.7 = 2400 mAh charge, presuming it is 3.7 V, not 5 V but even then, there is loss due to voltage conversion for charging the built-in battery. IMHO, the battery packs that have 4 or 5 fold out panels attached have at least a decent chance of recharging a large battery in full sunlight.

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Aug 05, 2025 01:31 AM
27 Posts
Joined Aug 2009
Aug 05, 2025 01:31 AM
ckhongAug 05, 2025 01:31 AM
27 Posts
I got one of these about 3 years ago. Battery swelled up after about two years.
Aug 05, 2025 04:33 PM
28 Posts
Joined Oct 2017
Aug 05, 2025 04:33 PM
MurderMostFowlAug 05, 2025 04:33 PM
28 Posts

Our community has rated this post as helpful. If you agree, why not thank MurderMostFowl

Quote from ckhong :
I got one of these about 3 years ago. Battery swelled up after about two years.
I don't doubt that. I am sure it does not have good battery heat management and being that you are literally forced to put it in direct sunlight for hours, they're already creating a poor environment.
1
Aug 06, 2025 02:02 AM
3,460 Posts
Joined Aug 2007
Aug 06, 2025 02:02 AM
graphixvAug 06, 2025 02:02 AM
3,460 Posts
Gimmick ALERT
Aug 06, 2025 12:16 PM
9,238 Posts
Joined Nov 2013
Aug 06, 2025 12:16 PM
AdelleyAug 06, 2025 12:16 PM
9,238 Posts
Quote from MurderMostFowl :
I don't doubt that. I am sure it does not have good battery heat management and being that you are literally forced to put it in direct sunlight for hours, they're already creating a poor environment.

Lol can you get a usb fan plugged into this to cool it down while charging? Haha
1
Aug 06, 2025 12:38 PM
13 Posts
Joined Aug 2025
Aug 06, 2025 12:38 PM
Slick-EditorAug 06, 2025 12:38 PM
13 Posts
durable for outdoors?

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