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onn. Dual-Port Portable Charger (20000mAh) $12 + Free Shipping w/ Walmart+ or $35+

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Walmart.com [walmart.com] has onn. Dual-Port Portable Charger (20000mAh) for $12. Shipping is free w/ Walmart+ (15-Day Free Trial [walmart.com]) or on orders $35+
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onn. Dual-Port Portable Charger (20000mAh) $12 + Free Shipping w/ Walmart+ or $35+
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Model: Onn. 20k Blk

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Sort: Lowest to Highest | Last Updated 4/18/2024, 11:26 AM
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Walmart$30.88

Community Wiki

Last Edited by Anonymous November 24, 2021 at 12:47 PM
Actual capacity: 11840mAh/5V
Rated capacity: 20000mAh/3.7V
Over-charge/discharge/voltage/current/heat and short circuit protection
Input: Micro-USB DC 5V/2A
Output: USB 5V/2.4A x 2
Total output: Max 4.8A shared

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Joined Sep 2004
L5: Journeyman
> bubble2 864 Posts
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DerpVader
11-24-2021 at 04:57 AM.

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

11-24-2021 at 04:57 AM.
Sadly not USB C
Input: Micro-USB DC 5V/2A
Output: USB 5V/2.4A x 2
Total output: Max 4.8A shared
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Joined Apr 2007
L10: Grand Master
> bubble2 8,298 Posts
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Lantean
11-24-2021 at 08:30 AM.
11-24-2021 at 08:30 AM.
Quote from jeffreyd00 :
Sadly not USB C
Input: Micro-USB DC 5V/2A
Output: USB 5V/2.4A x 2
Total output: Max 4.8A shared
probably the reason why it's so cheap.
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Joined Jul 2018
L3: Novice
> bubble2 120 Posts
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AmusedCalendar866
11-24-2021 at 08:36 AM.
11-24-2021 at 08:36 AM.
Anyone know if this is of good quality (the cells in particular)?
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HIDDENspydersdeals6911-24-2021 at 08:37 AM.
Joined Mar 2014
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> bubble2 19 Posts
10 Reputation
kui
11-24-2021 at 08:53 AM.
11-24-2021 at 08:53 AM.
Does it support fast charger for galaxy?
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Joined Aug 2010
L4: Apprentice
> bubble2 324 Posts
36 Reputation
SaltonUnsalted
11-24-2021 at 09:00 AM.
11-24-2021 at 09:00 AM.
Quote from kui :
Does it support fast charger for galaxy?
No it does not. 12W charging.
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Joined Feb 2011
L5: Journeyman
> bubble2 922 Posts
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ss115891
11-24-2021 at 09:37 AM.
11-24-2021 at 09:37 AM.
Not a great deal. Pass...
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Joined Nov 2015
L6: Expert
> bubble2 1,801 Posts
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sdpoker
11-24-2021 at 09:59 AM.
11-24-2021 at 09:59 AM.
looks cheap
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Joined Nov 2014
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> bubble2 63 Posts
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julian_dear
11-24-2021 at 11:05 AM.
11-24-2021 at 11:05 AM.
Quote from AmusedCalendar866 :
Anyone know if this is of good quality (the cells in particular)?

Got one about a month ago, charged it once and it kept 100% charge since.
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Joined Sep 2005
> bubble2 1,807 Posts
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08b6e22f-c7c3-49b9-8fdf-f1b421
11-24-2021 at 12:38 PM.
11-24-2021 at 12:38 PM.
It states that it's 20,000mAh @3.7V (ie. the battery itself).
It states that it's only 11840mAh @5V (ie. via the usb port for you to use)

Does anyone know if this is how these specs work with other MFG's, such as energizer lithium power banks? ie. they advertise capacity that you can't actually use via the usb ports?
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Joined Oct 2014
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> bubble2 392 Posts
dealgator90
11-24-2021 at 01:25 PM.
11-24-2021 at 01:25 PM.
Quote from sleepyrx :
It states that it's 20,000mAh @3.7V (ie. the battery itself).
It states that it's only 11840mAh @5V (ie. via the usb port for you to use)

Does anyone know if this is how these specs work with other MFG's, such as energizer lithium power banks? ie. they advertise capacity that you can't actually use via the usb ports?
As far as I know, all power banks are marketed at the 3.7V values (because the inner cells themselves are 3.7V). Only a few go the extra mile and state their capacity in both 3.7V and 5V clearly. This one is one of those few ones to do so.
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Joined Sep 2005
> bubble2 1,807 Posts
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08b6e22f-c7c3-49b9-8fdf-f1b421
11-24-2021 at 02:45 PM.
11-24-2021 at 02:45 PM.
Quote from dealgator90 :
As far as I know, all power banks are marketed at the 3.7V values (because the inner cells themselves are 3.7V). Only a few go the extra mile and state their capacity in both 3.7V and 5V clearly. This one is one of those few ones to do so.
That's what I was assuming, since none of the other user manuals that I checked, stated anything except for the rated capacity (the larger of the numbers).

Tho after posting the question, I checked the back of 2 other power banks. They appear to have a significantly larger Actual Capacity, when calculated based on the stated Wh @ 3.7V vs 5V.... (ie. 12,972mAh vs this one having 11,840mAh, etc)
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Last edited by Anonymous November 24, 2021 at 02:50 PM.
Joined Jan 2007
L10: Grand Master
> bubble2 28,291 Posts
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cgigate
11-24-2021 at 02:49 PM.
11-24-2021 at 02:49 PM.
Quote from AmusedCalendar866 :
Anyone know if this is of good quality (the cells in particular)?
that is very good quality one,
purchased couple from the BM store was $5
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