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babgaly | Staff 17K Views
Aug 30, 2026 7:59 PM

20000mAh Wagon International 3-Port up to 190W Power Bank

$34

$80

57% off
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Deal Details
Lenovo Product Marketplace, Inc. via Amazon has 20000mAh Wagon International 3-Port up to 190W Power Bank w/ Built-In Cable (Blue or Silver) on sale for $79.99 - $46 when you apply promo code 8XBA5EOX at checkout = $33.99. Shipping is free.

Thanks to Deal Hunter babgaly for sharing this deal.
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Available:Details:
  • 190W high power output for charging multiple devices simultaneously (laptops, smartphones, tablets)
  • 20,000mAh large capacity for all-day power and multiple device charges
  • Built-in durable charging cable for ultimate convenience and on-the-go use
  • 100W PD bi-directional fast charging for both input and output
  • Wide compatibility with MacBook, Windows laptops, smartphones, tablets, and PD/PPS devices
  • Smart IPS display shows real-time battery level, charging status, and power output
  • Advanced safety protection against overcharge, overcurrent, overheating, and short circuits

Editor's Notes

Written by SaltyOne | Staff

Original Post

Written by babgaly | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Lenovo Product Marketplace, Inc. via Amazon has 20000mAh Wagon International 3-Port up to 190W Power Bank w/ Built-In Cable (Blue or Silver) on sale for $79.99 - $46 when you apply promo code 8XBA5EOX at checkout = $33.99. Shipping is free.

Thanks to Deal Hunter babgaly for sharing this deal.
  • Note: You must be logged in to clip coupons or apply promo codes. Coupons/Promo codes may vary by account or may need to be re-applied in order to discount properly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
Available:Details:
  • 190W high power output for charging multiple devices simultaneously (laptops, smartphones, tablets)
  • 20,000mAh large capacity for all-day power and multiple device charges
  • Built-in durable charging cable for ultimate convenience and on-the-go use
  • 100W PD bi-directional fast charging for both input and output
  • Wide compatibility with MacBook, Windows laptops, smartphones, tablets, and PD/PPS devices
  • Smart IPS display shows real-time battery level, charging status, and power output
  • Advanced safety protection against overcharge, overcurrent, overheating, and short circuits

Editor's Notes

Written by SaltyOne | Staff

Original Post

Written by babgaly | Staff

Community Voting

Deal Score
+66
Good Deal
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Top Comments

StrongGazelle9261
34Comments
22Reputation
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.
Go to Comment
Nintendo1474
756Comments
156Reputation
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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StrongGazelle9261
34Comments
22Reputation
They are not using LFP cells. A 20,000mAh LFP power bank would be much larger than this. Additionally, your testing needs to be standardized. This power bank can push out up to 190w. Depending on what you're charging and the wattage you're pulling, you will get less "efficiency". Charging a Macbook at 60w is very different than charging a phone at 18w, even if the cell capacity is the same. You will get less efficient charging due to high wattage charging generating more waste heat. Additionally, every power bank has a BMS that has a low voltage cutoff to prevent deep discharge. The cutoff for every power bank is set by the manufacturer and is up to the manufacturer to decide how low is too low. For example, If they want to be a little conservative for extra safety, they could set the low voltage cutoff to 2.7v instead of 2.4v. This does not change the actual capacity of the cells, however it does change the usable amount.

Your 10,000mAh ones are "more efficient" possibly due to the fact that they don't go nearly as high wattage or that they have a lower low-voltage cutoff. Would be impossible to tell without seeing your test numbers. You should test two power banks of similar wattage and of similar cell structure (4x 21700) to compare. Realistically, the discrepancy in your efficiency tests are unlikely to make a huge difference in real world use, maybe the different between charging your phone 4.5 times or 4.9 times.

Regardless, the point is that you said they are lying. Even if the efficiency on this product is worse, that does not mean they are lying. You misunderstood how batteries work and spread misinformation.
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49 Comments

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Aug 31, 2026 12:37 AM
34 Comments
Joined Aug 2025
StrongGazelle9261Aug 31, 2026 12:37 AM
34 Comments

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

Quote from Nintendo1474 :
I have tested every other power bank I own, none have ever given me 24 percent less than their advertised capacity. My worst one is labeled as 21 percent less, but it actually put out slightly more. My 10Ah banks are even more efficient, they put out only 16 percent less than advertised.

I just assumed it uses lifepo cells for the CCC label, since they're less energy dense in return for being much safer. I'm not planning on flying to China any time soon, so that label really isn't a big concern of mine. I'm more concerned about efficiency, and this battery is not as good as my Iniu 10Ahs, my Anker Zolo 10Ah, or my Insignia 26.8Ah. If I do end up flying in China, I will strongly consider this again.
They are not using LFP cells. A 20,000mAh LFP power bank would be much larger than this. Additionally, your testing needs to be standardized. This power bank can push out up to 190w. Depending on what you're charging and the wattage you're pulling, you will get less "efficiency". Charging a Macbook at 60w is very different than charging a phone at 18w, even if the cell capacity is the same. You will get less efficient charging due to high wattage charging generating more waste heat. Additionally, every power bank has a BMS that has a low voltage cutoff to prevent deep discharge. The cutoff for every power bank is set by the manufacturer and is up to the manufacturer to decide how low is too low. For example, If they want to be a little conservative for extra safety, they could set the low voltage cutoff to 2.7v instead of 2.4v. This does not change the actual capacity of the cells, however it does change the usable amount.

Your 10,000mAh ones are "more efficient" possibly due to the fact that they don't go nearly as high wattage or that they have a lower low-voltage cutoff. Would be impossible to tell without seeing your test numbers. You should test two power banks of similar wattage and of similar cell structure (4x 21700) to compare. Realistically, the discrepancy in your efficiency tests are unlikely to make a huge difference in real world use, maybe the different between charging your phone 4.5 times or 4.9 times.

Regardless, the point is that you said they are lying. Even if the efficiency on this product is worse, that does not mean they are lying. You misunderstood how batteries work and spread misinformation.
5
Aug 31, 2026 12:50 AM
756 Comments
Joined Jul 2017
Nintendo1474Aug 31, 2026 12:50 AM
756 Comments
Quote from mobilebuddha :
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.
I own 4 power banks of different brands, they never did worse than 20 percent less than advertised in my testing. My 10Ah Iniu were around 16 percent less.

With CCC? No, this is the only power bank I've ever even seen that had it. I'm assuming that CCC requires the manufacturer to limit the usable capacity of the cells to increase safety, so this certification will decrease quality in other areas.

By the way, it's only capable of outputting 190 watts max if one of the connected devices supports Lenovo proprietary 20v/7a charging, which is not part of USBPD spec. It's going to be limited to 100 watts per port for all other devices, and using the C and A ports on the device simultaneously limit them to 20 watts shared total. That brings the peak output to 120 watts on 3 ports and 165 on 2 if you aren't charging a Lenovo laptop.

I've seen many 165 watt 20Ah banks around 40~60 bucks, but I don't really buy bigger ones like those anymore. I want to carry them in my pockets without them pulling my pants down or smacking my balls with every step. Sorry I can't give any real use reviews.
2
3
Aug 31, 2026 1:20 AM
1.1K Comments
Joined Jun 2006
zyberwoofAug 31, 2026 1:20 AM
1.1K Comments
Quote from StrongGazelle9261 :
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.
Does that mean I can assume that most 10,000 mAh power banks are also only providing around 7,500 mAh at 5V?

Also, I am aware that inefficiencies in the charging process meant that fully charging a phone requires a power bank with a larger capacity (25%-33% more?). Is what you are describing compounded on top? Meaning it's possible that a 5,000 mAh phone might take 6,500 mAh of power bank to charge, and that I might need an advertised 9,000 mAh power bank to actually get something like 6,500 mAh of usable power?

(I'm trying to keep things very generalized and learn more. Forgive me if any of my understanding is wrong, or if any of my numbers are ridiculously far off of what is realistic.)
Last edited by zyberwoof August 30, 2026 at 06:23 PM.
Aug 31, 2026 1:23 AM
756 Comments
Joined Jul 2017
Nintendo1474Aug 31, 2026 1:23 AM
756 Comments
Quote from StrongGazelle9261 :
They are not using LFP cells. A 20,000mAh LFP power bank would be much larger than this. Additionally, your testing needs to be standardized. This power bank can push out up to 190w. Depending on what you're charging and the wattage you're pulling, you will get less "efficiency". Charging a Macbook at 60w is very different than charging a phone at 18w, even if the cell capacity is the same. You will get less efficient charging due to high wattage charging generating more waste heat. Additionally, every power bank has a BMS that has a low voltage cutoff to prevent deep discharge. The cutoff for every power bank is set by the manufacturer and is up to the manufacturer to decide how low is too low. For example, If they want to be a little conservative for extra safety, they could set the low voltage cutoff to 2.7v instead of 2.4v. This does not change the actual capacity of the cells, however it does change the usable amount.

Your 10,000mAh ones are "more efficient" possibly due to the fact that they don't go nearly as high wattage or that they have a lower low-voltage cutoff. Would be impossible to tell without seeing your test numbers. You should test two power banks of similar wattage and of similar cell structure (4x 21700) to compare. Realistically, the discrepancy in your efficiency tests are unlikely to make a huge difference in real world use, maybe the different between charging your phone 4.5 times or 4.9 times.

Regardless, the point is that you said they are lying. Even if the efficiency on this product is worse, that does not mean they are lying. You misunderstood how batteries work and spread misinformation.
This can only put out 190 watts across two devices, one at 125 and the other at 65. But the 125 watt charging requires a proprietary Lenovo 20v7a charging protocol, and I don't have any devices that support this. The standardized USBPD max is 100 watts, and I did not get more than 65 watts from the second port when drawing 100 from the cable with any combination of devices I had. That means it's 165 watts max for all non-Lenovo laptop users, and still only for a few minutes before it thermal throttles to 60 watts.

I tested it at 5 volts from the A port, which should be the most efficient output. This is how I tested all my power banks, as I prefer slow charging my devices when possible. It still only managed 54 or so Watt hours. It also barely even consumed 67 Watt hours when charging from 0 to 100, so the cells themselves are being limited. Call it a safety feature or whatever, I don't care.

They claim 20Ah, but are the farthest from being able to deliver that of any power bank I've tested. They are therefore lying about their useful capacity more than any other power bank manufacturer I've bought from.
4
Aug 31, 2026 1:27 AM
6.5K Comments
Joined Feb 2004
armedmetallicaAug 31, 2026 1:27 AM
6.5K Comments
Quote from brokegearguru :
This seems to be the non-World Cup branded version https://a.co/d/01JbjuZn
That was $25 back in July....
Aug 31, 2026 1:50 AM
27 Comments
Joined Jan 2023
WittyStew2823Aug 31, 2026 1:50 AM
27 Comments

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

Quote from Nintendo1474 :
This can only put out 190 watts across two devices, one at 125 and the other at 65. But the 125 watt charging requires a proprietary Lenovo 20v7a charging protocol, and I don't have any devices that support this. The standardized USBPD max is 100 watts, and I did not get more than 65 watts from the second port when drawing 100 from the cable with any combination of devices I had. That means it's 165 watts max for all non-Lenovo laptop users, and still only for a few minutes before it thermal throttles to 60 watts.I tested it at 5 volts from the A port, which should be the most efficient output. This is how I tested all my power banks, as I prefer slow charging my devices when possible. It still only managed 54 or so Watt hours. It also barely even consumed 67 Watt hours when charging from 0 to 100, so the cells themselves are being limited. Call it a safety feature or whatever, I don't care.They claim 20Ah, but are the farthest from being able to deliver that of any power bank I've tested. They are therefore lying about their useful capacity more than any other power bank manufacturer I've bought from.
They never said that 20,000mAh was their usable capacity, therefore they are not lying about their usable capacity. They said 73Wh cell capacity, 55.74Wh rated capacity. How do you still not understand this after someone else already explained this to you? You just can't read. Just stop dude, you're wrong and you don't know what you're talking about.
1
1
Aug 31, 2026 2:20 AM
756 Comments
Joined Jul 2017
Nintendo1474Aug 31, 2026 2:20 AM
756 Comments
Quote from WittyStew2823 :
They never said that 20,000mAh was their usable capacity, therefore they are not lying about their usable capacity. They said 73Wh cell capacity, 55.74Wh rated capacity. How do you still not understand this after someone else already explained this to you? You just can't read. Just stop dude, you're wrong and you don't know what you're talking about.
They didn't put 55.75 Wh in the title or description, only 20 Ah. 55.75 Wh is what I calculated from their label on the back of the device that said 11150 mAh at 5 volts. That's the only rated output listed, where other banks list rated outputs for all their voltage levels.

They don't have to say "DELIVERS 73 WATT HOURS GUARANTEED". They're fudging the numbers, which all manufacturers do. But they fudged them more so than others. This 20Ah battery pack cannot output as much energy as other 20Ah battery packs. This is a fact that they admit, in fine print on the back of the product. That is the lie. Admitting it in fine print doesn't make it okay, it only makes it legal.
5

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Aug 31, 2026 2:54 AM
205 Comments
Joined Nov 2005
mobilebuddhaAug 31, 2026 2:54 AM
205 Comments
Quote from Nintendo1474 :
I own 4 power banks of different brands, they never did worse than 20 percent less than advertised in my testing. My 10Ah Iniu were around 16 percent less.

With CCC? No, this is the only power bank I've ever even seen that had it. I'm assuming that CCC requires the manufacturer to limit the usable capacity of the cells to increase safety, so this certification will decrease quality in other areas.

By the way, it's only capable of outputting 190 watts max if one of the connected devices supports Lenovo proprietary 20v/7a charging, which is not part of USBPD spec. It's going to be limited to 100 watts per port for all other devices, and using the C and A ports on the device simultaneously limit them to 20 watts shared total. That brings the peak output to 120 watts on 3 ports and 165 on 2 if you aren't charging a Lenovo laptop.

I've seen many 165 watt 20Ah banks around 40~60 bucks, but I don't really buy bigger ones like those anymore. I want to carry them in my pockets without them pulling my pants down or smacking my balls with every step. Sorry I can't give any real use reviews.
Thanks for the tip on the 190 watts max only if it's charging a lenovo 20v/7a device. That's definitely good to know.
Aug 31, 2026 3:26 AM
5.2K Comments
Joined Feb 2006
Azrael_the_CatAug 31, 2026 3:26 AM
5.2K Comments
Quote from StrongGazelle9261 :
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.
You have some incorrect assumptions. Modern DC to DC converters in these applications are 95% efficient or better. Otherwise these things would melt when delivering 100W output!!!!
3
Aug 31, 2026 3:32 AM
94 Comments
Joined Mar 2013
cloudsweatAug 31, 2026 3:32 AM
94 Comments
Quote from Nintendo1474 :
I have tested every other power bank I own, none have ever given me 24 percent less than their advertised capacity. My worst one is labeled as 21 percent less, but it actually put out slightly more. My 10Ah banks are even more efficient, they put out only 16 percent less than advertised.I just assumed it uses lifepo cells for the CCC label, since they're less energy dense in return for being much safer. I'm not planning on flying to China any time soon, so that label really isn't a big concern of mine. I'm more concerned about efficiency, and this battery is not as good as my Iniu 10Ahs, my Anker Zolo 10Ah, or my Insignia 26.8Ah. If I do end up flying in China, I will strongly consider this again.
Good thoughts. If CCC is a consideration, I just bought this Baseus and it has the CCC on the back. Thoughts on this Baseus vs the FIFA one?https://a.co/d/05Q47RKE
Aug 31, 2026 3:48 AM
6.7K Comments
Joined Dec 2004
CaleoAug 31, 2026 3:48 AM
6.7K Comments
I got one of these almost 2 months ago. Best power bank I have. It can recharge from either the permanent USB-C cable or USB-C port itself, which is nice - it won't be worthless if something happens to the permanent cable. What's also nice is that it can recharge itself at up to 100W so you don't have to wait forever to top it off. Useful screen on it, too, showing temperature, total in/out, or individual port in/out on the second screen.

Would buy again if I needed another.
Last edited by Caleo August 30, 2026 at 09:08 PM.
Aug 31, 2026 4:28 AM
34 Comments
Joined Aug 2025
StrongGazelle9261Aug 31, 2026 4:28 AM
34 Comments
Quote from Azrael_the_Cat :
You have some incorrect assumptions. Modern DC to DC converters in these applications are 95% efficient or better. Otherwise these things would melt when delivering 100W output!!!!
"due to heat and various other factors". I'm not going to explain all the factors that contribute to why a power banks rated capacity is lower than the cell capacity. Heat is a factor, I did not say it's the only factor. You had an incorrect assumption there.
2
1
Aug 31, 2026 4:40 AM
27 Comments
Joined Jan 2023
WittyStew2823Aug 31, 2026 4:40 AM
27 Comments
Quote from Nintendo1474 :
They didn't put 55.75 Wh in the title or description, only 20 Ah. 55.75 Wh is what I calculated from their label on the back of the device that said 11150 mAh at 5 volts. That's the only rated output listed, where other banks list rated outputs for all their voltage levels.They don't have to say "DELIVERS 73 WATT HOURS GUARANTEED". They're fudging the numbers, which all manufacturers do. But they fudged them more so than others. This 20Ah battery pack cannot output as much energy as other 20Ah battery packs. This is a fact that they admit, in fine print on the back of the product. That is the lie. Admitting it in fine print doesn't make it okay, it only makes it legal.
They put 20Ah in the description because that's how you label batteries, by their cell capacity. You cannot label it by deliverable mAh because there are too many factors involved to give a flat number. Deliverable mAh can change depending on what you're charging. It's not a lie. By your logic, all other power banks labeled 20,000mAh are also lying because ain't a single one of them will be 20,000mAh deliverable. Some will be more efficient yes, but where do you draw the line on what's lying? Labeling 20,000 and being 85% efficient is not lying but being 80% efficient is lying? Your logic is arbitrary at best. All my other power banks are also labeled at different voltages, but they all calculate out to the same Wh.
1
1
Aug 31, 2026 7:19 AM
756 Comments
Joined Jul 2017
Nintendo1474Aug 31, 2026 7:19 AM
756 Comments
Quote from cloudsweat :
Good thoughts. If CCC is a consideration, I just bought this Baseus and it has the CCC on the back. Thoughts on this Baseus vs the FIFA one?https://a.co/d/05Q47RKE
Most of the reviews seem to be for a different product. I don't see a single image of the 25Ah power bank, and barely any of them actually mention that they're talking about the 25Ah version. Most refer to a 10Ah bank. While I'd like to recommend this one, I cannot find any useful info on it. I even checked their own website, still don't see a watt hour rating or manual anywhere.

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Aug 31, 2026 8:21 AM
1.5K Comments
Joined Feb 2010
ChpByrAug 31, 2026 8:21 AM
1.5K Comments
Quote from Caleo :
I got one of these almost 2 months ago. Best power bank I have. It can recharge from either the permanent USB-C cable or USB-C port itself, which is nice - it won't be worthless if something happens to the permanent cable. What's also nice is that it can recharge itself at up to 100W so you don't have to wait forever to top it off. Useful screen on it, too, showing temperature, total in/out, or individual port in/out on the second screen.

Would buy again if I needed another.

This was basically my experience as well. Took it to the other side of the planet. Served me well. Had also picked up a 24k Anker unit off woot for my wife. Both solid units, though this Wagon unit charges much faster and our phones/SteamDeck couldn't tell the difference between them.

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