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popularbabgaly | Staff posted Today 7:59 PM

20000mAh Wagon International 3-Port up to 190W Power Bank (Various) $33.99 + Free Shipping w/ Prime or on $35+

$34

$80

57% off
Amazon
13 Comments
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Deal Details
Lenovo Product Marketplace, Inc. via Amazon [amazon.com] has 20000mAh Wagon International 3-Port up to 190W Power Bank (Various) on sale for $79.99 - $46 off when you enter the coupon code 8XBA5EOX at checkout = $33.99. Shipping is free w/ Prime or on $35+.


Product Description from Amazon:
  • 190W High Power Output for Multiple Devices: Delivers up to 190W total output, allowing you to charge laptops, smartphones, tablets, and more simultaneously with powerful performance
  • 20000mAh Large Capacity for All-Day Power: Equipped with a high-capacity battery that provides multiple charges for your devices, ideal for travel, work, and outdoor use.
  • Built-in Cable for Ultimate Convenience: Comes with an integrated durable charging cable—no need to carry extra cords, making it perfect for on-the-go charging.
  • 100W PD Bi-Directional Fast Charging: Supports 100W Power Delivery for both input and output, enabling fast recharging of the power bank and rapid charging for laptops and devices.
  • Wide Compatibility for Mac & Windows Devices: Compatible with MacBook, Windows laptops, smartphones, tablets, and more, supporting PD, PPS, and other fast-charging protocols.
  • Smart IPS Display for Real-Time Monitoring: Clear IPS screen shows battery level, charging status, and power output in real time for better control and visibility.
  • Advanced Safety Protection System: Built-in multiple protection features against overcharge, overcurrent, overheating, and short circuits for reliable performance.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Lenovo Product Marketplace, Inc. via Amazon [amazon.com] has 20000mAh Wagon International 3-Port up to 190W Power Bank (Various) on sale for $79.99 - $46 off when you enter the coupon code 8XBA5EOX at checkout = $33.99. Shipping is free w/ Prime or on $35+.


Product Description from Amazon:
  • 190W High Power Output for Multiple Devices: Delivers up to 190W total output, allowing you to charge laptops, smartphones, tablets, and more simultaneously with powerful performance
  • 20000mAh Large Capacity for All-Day Power: Equipped with a high-capacity battery that provides multiple charges for your devices, ideal for travel, work, and outdoor use.
  • Built-in Cable for Ultimate Convenience: Comes with an integrated durable charging cable—no need to carry extra cords, making it perfect for on-the-go charging.
  • 100W PD Bi-Directional Fast Charging: Supports 100W Power Delivery for both input and output, enabling fast recharging of the power bank and rapid charging for laptops and devices.
  • Wide Compatibility for Mac & Windows Devices: Compatible with MacBook, Windows laptops, smartphones, tablets, and more, supporting PD, PPS, and other fast-charging protocols.
  • Smart IPS Display for Real-Time Monitoring: Clear IPS screen shows battery level, charging status, and power output in real time for better control and visibility.
  • Advanced Safety Protection System: Built-in multiple protection features against overcharge, overcurrent, overheating, and short circuits for reliable performance.

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13 Comments

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Today 8:10 PM
102 Comments
Joined Aug 2021
AquaPickle423Today 8:10 PM
102 Comments
Coupon isn't working for me.

edit: got it to work after deleting it from my cart and re-adding it to apply the coupon.

anyone know if this supports Samsung super fast charging?
Last edited by AquaPickle423 August 30, 2026 at 01:15 PM.
Pro
Global Mod
Today 8:12 PM
4.8K Comments
Joined May 2008
pur
Pro
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Today 8:12 PM
4.8K Comments
Quote from AquaPickle423 :
Coupon isn't working for me
8XBA5EOX still seems to work. If you're using the Amazon app you might be missing the step of tapping on the arrow that appears in the promo code box to apply the code (before tapping the Continue button).
Today 8:19 PM
3.6K Comments
Joined Dec 2008
Spider210Today 8:19 PM
3.6K Comments
Most reviews all free product reviews..smells like self promoted
Today 8:20 PM
102 Comments
Joined Aug 2021
AquaPickle423Today 8:20 PM
102 Comments
Quote from pur :
8XBA5EOX still seems to work. If you're using the Amazon app you might be missing the step of tapping on the arrow that appears in the promo code box to apply the code (before tapping the Continue button).
I got it to work. Thanks. For some reason I had to delete it from my cart and add it again for the coupon to take.
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Today 8:22 PM
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Joined May 2008
pur
Pro
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Today 8:22 PM
4.8K Comments
Quote from AquaPickle423 :
I got it to work. Thanks. For some reason I had to delete it from my cart and add it again for the coupon to take.
Glad it went through finally. Amazon checkout seems to have a lot of problems with codes
Today 8:24 PM
102 Comments
Joined Aug 2021
AquaPickle423Today 8:24 PM
102 Comments
Quote from pur :
Glad it went through finally. Amazon checkout seems to have a lot of problems with codes
I just need to know if it supports Samsung fast 45w charging before pulling the trigger. It seems like it should based on the listed wattage and that it does power delivery.
Today 8:58 PM
744 Comments
Joined Jul 2017
Nintendo1474Today 8:58 PM
744 Comments

Our community has rated this post as helpful. If you agree, why not thank Nintendo1474

Bought this last time it was on sale. While it says 20000 mAh in the description, it has 55.75Wh (11150 mAh at 5 volts) printed on the back as its "rated capacity". That's much closer to 15000 mAh, and my capacity tests agreed. It's nearly 25 percent less than 20 Ah, and while it's still an acceptable deal for 15 Ah, it gave me ick that they'd lie so blatantly while having photos in reviews that show the truth. I returned it and am going to wait for a better known brand to reach near this price instead.
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Today 10:10 PM
173 Comments
Joined Feb 2022
brokegearguruToday 10:10 PM
173 Comments
This seems to be the non-World Cup branded version https://a.co/d/01JbjuZn
Today 10:21 PM
102 Comments
Joined Aug 2021
AquaPickle423Today 10:21 PM
102 Comments
Quote from Nintendo1474 :
Bought this last time it was on sale. While it says 20000 mAh in the description, it has 55.75Wh (11150 mAh at 5 volts) printed on the back as its "rated capacity". That's much closer to 15000 mAh, and my capacity tests agreed. It's nearly 25 percent less than 20 Ah, and while it's still an acceptable deal for 15 Ah, it gave me ick that they'd lie so blatantly while having photos in reviews that show the truth. I returned it and am going to wait for a better known brand to reach near this price instead.
Thanks for this. I'm cancelling. Repped
Today 10:29 PM
204 Comments
Joined Nov 2005
mobilebuddhaToday 10:29 PM
204 Comments
Quote from Nintendo1474 :
Bought this last time it was on sale. While it says 20000 mAh in the description, it has 55.75Wh (11150 mAh at 5 volts) printed on the back as its "rated capacity". That's much closer to 15000 mAh, and my capacity tests agreed. It's nearly 25 percent less than 20 Ah, and while it's still an acceptable deal for 15 Ah, it gave me ick that they'd lie so blatantly while having photos in reviews that show the truth. I returned it and am going to wait for a better known brand to reach near this price instead.
Not to defend them, but I thought most other brands do the same type of marketing? that all 20mah marketed batteries are really closer to 15k?

Also, do you have a similar 20k power bank at similar price level ($34) with this level of output (~ 190w) and CCC certification? I'm in the market for one so i'd love to get a recommendation.
Today 10:33 PM
32 Comments
Joined Aug 2025
StrongGazelle9261Today 10:33 PM
32 Comments

Our community has rated this post as helpful. If you agree, why not thank StrongGazelle9261

Quote from Nintendo1474 :
Bought this last time it was on sale. While it says 20000 mAh in the description, it has 55.75Wh (11150 mAh at 5 volts) printed on the back as its "rated capacity". That's much closer to 15000 mAh, and my capacity tests agreed. It's nearly 25 percent less than 20 Ah, and while it's still an acceptable deal for 15 Ah, it gave me ick that they'd lie so blatantly while having photos in reviews that show the truth. I returned it and am going to wait for a better known brand to reach near this price instead.
They're not lying, they're actually doing the opposite. They're just giving you more information. There's a difference between Cell Capacity and Rated Capacity. You are looking at Rated Capacity. Right above the line that says Rated Capacity, it says Cell Capacity is 73Wh, or around 20,000mAh at the nominal voltage of 21700 cells (3.7v).

They gave you a secondary line that says Rated Capacity because they are calculating a real use capacity by taking into account loss of efficiency due to heat and various other factors. This is normal for all batteries. You will not be able to utilize all of the cell capacity of the batteries as no battery is 100% efficient.

Unlike many other power banks, at least they gave you both figures. Rest assured, the power bank indeed contains 4x 5000mAh 21700 cells, so it is 20,000mAh at 3.7v or around 15000mAh at 5v or 73Wh. Your rated capacity at 55.75Wh is more realistic which gives you around 76% efficiency, quite a conservative estimate and fairly normal. All battery and power bank manufacturers label their products this way. You will not find any power banks labeled 20,000mAh where you can get all 100% of that capacity. Other brands just don't give you the calculated "Rated Capacity" figure at all.
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Today 10:37 PM
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Joined Apr 2009
KITHPOMToday 10:37 PM
3.3K Comments
Quote from Nintendo1474 :
Bought this last time it was on sale. While it says 20000 mAh in the description, it has 55.75Wh (11150 mAh at 5 volts) printed on the back as its "rated capacity". That's much closer to 15000 mAh, and my capacity tests agreed. It's nearly 25 percent less than 20 Ah, and while it's still an acceptable deal for 15 Ah, it gave me ick that they'd lie so blatantly while having photos in reviews that show the truth. I returned it and am going to wait for a better known brand to reach near this price instead.
It does say 11150mAh but it also says 73Wh and 4 X 5000mAh batteries. I haven't tested capacity per se but it does charge phones more than 4X.
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Today 11:09 PM
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edrock200
Pro
Today 11:09 PM
4.6K Comments
Yeah most don't realize mah rating means essentially nothing without a voltage associated to it. Watt hours would be a better rating for these things. They have a 240w bank for $5 more but 12500mah rated yet it looks like it's 2x the size

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