frontpage
20000mAh Wagon International 3-Port up to 190W Power Bank
$34
$80
57% off
+ Free S&Hat Amazon
+ Free S&Hat AmazonDeal 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.
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.
- 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- About this Deal:
- This matches our lowest-priced Frontpage Deal in July.
- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
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.
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.
- 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- About this Deal:
- This matches our lowest-priced Frontpage Deal in July.
- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
Community Voting
Deal
Score
+67
Good Deal
Bad Deal
Top Comments
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.
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.
Community Reviews
This Wagon 20,000mAh power bank stands out for fast charging and travel-friendly capacity, with a built-in USB C cable, a USB C port, and a screen that shows temperature and in and out details. It can recharge itself at up to 100W, and real-world use includes quick top offs for phones and even a Steam Deck. The main caveat is that the back label lists 73Wh cell capacity and 55.75Wh rated capacity, so usable energy appears closer to 15,000mAh than the headline figure. Peak 190W also depends on a Lenovo proprietary charging mode, with lower output for standard USB PD devices.
Common Questions (5)
AI-generated summary based on comments from the community. Updated ago
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!
49 Comments
Sign up for a Slickdeals account to remove this ad.
I said that all power banks lie. This one just lies moreso.
I don't draw a line anywhere. This one just has the least efficiency of all I've seen.
I already said all these things in the message you replied to. It's like you're not even reading what I'm saying, and are just arguing with me for fun or profit.
Including you, only two people have disagreed with me. They have similar username styles, reputation scores, account histories, and word choices in their responses. I am not concerned.
Sign up for a Slickdeals account to remove this ad.
BUT - People report on that mode severe heat throttling. My presumption is this is no different here.
So don't expect 140W or even 100W through the whole charge cycle. Mostly Anker, Baseus and INIU consistently have pulled that off - and mostly (almost only) on their premium units (737, B63, Blade - respectively).
Yeah, no. Hey CCP, make stuff that isn't deceptive.
So, where are we as a group, is it good or not-so good for 34 dollars? Let the debate continue, and if it does, which side is winning.
It is solid feeling device. Just got it last night.
Hard to know what the debate is about. Is this product FAKE, or mis-leading or are people cross-talking over each other. Can you state your case in a few simple sentences for us "confused guys" that are looking for "experts" to enlighten us.
Instructions say to use a PD100W or above charger. The chargers I have for my phone don't list how many W. Do I need to get a upgraded charger port?
Little concerned that it says 190W on the front of the unit...concerned about getting thru TSA for upcoming international flight.
Never used a PB before.
Sign up for a Slickdeals account to remove this ad.
Including you, only two people have disagreed with me. They have similar username styles, reputation scores, account histories, and word choices in their responses. I am not concerned.
All of the different methodologies and numbers which can be fudged (including btw cell capacity ratings themselves) definitely make it difficult to evaluate on a level playing field. I am not so sure that bickering about numbers that fundamentally someone had to fudge in some sense (and only being able to guess as to which sense it might be) just to be able to have it to write down amounts to much.
I just wish someone would make a product that is easy to disassemble or better yet, built to have cells inserted with a secure but easily opened door, and I can get my own 6500mah high discharge cells (amprius makes a 10A capable one, and much more of this type are coming) to install inside, it might be $50 worth of batteries but no mass market power bank maker is going to use remotely high quality cells as those. I'd be willing to spend $50 or even more on a very robust and efficient control and USBC circuits. Again though to do it on your own it is possible (after the $100 in parts and much, much, much much more in labor) but we can never come close in DIY against the mass market producers when it comes to integrated product design and compactness. I would love to have a battery bank that i could actually trust that has good characteristics while being competitive at energy density. To really push the boundaries requires taking product design to an extreme level.
For example the high end cells coming out of China nowadays can dump easily over 100W per cell so if you have 4 cells to give some decent capacity like 80Wh (fill phone 4 times, fill a laptop 0.7 times) and it's like conceivably not too bulky to carry traveling, you can if you beef up the power circuit have it be capable of dumping out close to 1kW. Obviously this is impractical, and not only that but the only stuff that can make use of that much power will generally be running off AC mains.
There are products like this though, the car jump starter battery banks are an example. they have the ability to deliver 1kw for a short period through the clamps, all you really need is 3 or 4 series cells. But they do not give all that great capacity as a regular power bank.
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!