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expiredphoinix | Staff posted Jan 14, 2026 8:01 AM

INIU 20000mAh 45W Power Bank w/ Built-In USB-C Cable (Black)

$19

$40

52% off
+ Free Shippingat Amazon
46 Comments
58.6K Views
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Deal Details
INIU Innovations Inc. via Amazon has INIU 20000mAh 45W Power Bank w/ Built-In USB-C Cable (Black, P51L-E2) on sale for $36.99 - $18.13 with 49% off discount applied automatically at checkout = $18.86. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Editor's Notes

Written by SubZero5 | Staff
  • About this Deal:
  • About this Store:
  • Additional Notes:
    • Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
INIU Innovations Inc. via Amazon has INIU 20000mAh 45W Power Bank w/ Built-In USB-C Cable (Black, P51L-E2) on sale for $36.99 - $18.13 with 49% off discount applied automatically at checkout = $18.86. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Editor's Notes

Written by SubZero5 | Staff
  • About this Deal:
  • About this Store:
  • Additional Notes:
    • Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+45
Good Deal
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Top Comments

ProductFRED
203Comments
33Reputation
The Cuktech 20000 mAh 45W that you're talking about arrived at my doorstep today. That one supports 40W charging (as in, charging the battery itself), while this INIU one only supports 27W -- so the INIU will take noticeably longer to recharge. The INIU one also mentions thermal throttling (in the FAQs), which makes sense since it's denser/smaller. Furthermore, the Cuktech supports passthrough charging (charging itself while charging another phone/device) -- not sure if the INIU does.

Another thing to note is Cuktech is Xiaomi, which is highly-regarded. INIU just had several large recalls on their battery banks sold via Amazon and other channels. Not saying to avoid them; just something to keep in mind. The larger size in this case serves a purpose; the Cuktech barely gets warm even charging my Macbook Pro 14", and charging itself from the wall charger. It's actually rated for 55W (written on the box and on the Amazon page), but it depends on what devices you're using. Most non-Xiaomi devices will be 45W, but it's good to know that it's designed (e.g. thermally) for 55W, so it's not going to be maxed out easily.

Aside from the size difference, I will give INIU points for a braided built in cable vs a "normal"/plastic on the Cuktech. Though the one on the Cuktech is reinforced by a firm piece of plastic at the base, where it meets the top of the battery pack.
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46 Comments

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Jan 14, 2026 9:38 AM
7 Comments
Joined Nov 2019
PurpleFaucet7651Jan 14, 2026 9:38 AM
7 Comments
How does this compare to https://slickdeals.net/f/19088989 should i return and buy this one?
Jan 14, 2026 10:06 AM
76 Comments
Joined Nov 2019
CleverMask4241Jan 14, 2026 10:06 AM
76 Comments

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

Quote from PurpleFaucet7651 View quoted comment :
How does this compare to https://slickdeals.net/f/19088989 should i return and buy this one?
The deal from the link you provided has half the capacity compared to the one listed here, and as such it's thinner by comparison with the trade-off being it can carry less of a charge. Additionally, the featured deal has a built in USB-C cable, whereas your link has an included cable that is detachable, and when removed frees a second USB-C port for use. So you have to ask yourself which trade-offs you prefer, thickness vs size vs built-in cable.
2
Jan 14, 2026 12:19 PM
437 Comments
Joined Apr 2007
hindjewJan 14, 2026 12:19 PM
437 Comments
Great brand! I use a10,000mAh one daily.
Jan 14, 2026 1:53 PM
1 Comments
Joined Nov 2012
jtzs1954Jan 14, 2026 1:53 PM
1 Comments
Clicked on link but comes up with $36 and no discount?
Jan 14, 2026 2:00 PM
8 Comments
Joined Mar 2025
Jimbo2025Jan 14, 2026 2:00 PM
8 Comments
Quote from jtzs1954 View quoted comment :
Clicked on link but comes up with $36 and no discount?
There should be a "Save 49% at checkout Terms" in green on that page (if the discount is still active). Once you checkout, the discount should apply. For those not seeing it, you may have to make sure to select the seller as being INIU Innovations Inc. (and ships from Amazon).
1
Jan 14, 2026 3:00 PM
31 Comments
Joined Dec 2023
StrongPiranha9909Jan 14, 2026 3:00 PM
31 Comments
Still working when I checked this out. Looks like a pretty good deal.
Jan 14, 2026 4:05 PM
4.3K Comments
Joined Dec 2007
OutragerJan 14, 2026 4:05 PM
4.3K Comments
Weird how INIU keeps putting USB-A ports on their portable batteries. Just put another USB-C.
6

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Jan 14, 2026 4:54 PM
75 Comments
Joined May 2022
HilariousCrib3277Jan 14, 2026 4:54 PM
75 Comments
Well I already bought the 20000 cuktech yesterday and I'm too lazy to cancel now especially since this is $3 more unfortunate name aside.
2
Jan 14, 2026 6:44 PM
2K Comments
Joined Oct 2004
SteelgazeJan 14, 2026 6:44 PM
2K Comments
Quote from HilariousCrib3277 View quoted comment :
Well I already bought the 20000 cuktech yesterday and I'm too lazy to cancel now especially since this is $3 more unfortunate name aside.
I just looked at the one you mentioned. This one is smaller/more portable. If you care about the size. I imagine the weight should be the same.
Jan 14, 2026 7:02 PM
870 Comments
Joined Apr 2015
hjeltenJan 14, 2026 7:02 PM
870 Comments
Have this one. Highly recommended. Also, good, fast and responsive customer service if you have any issues.
Pro
Jan 14, 2026 8:47 PM
1.1K Comments
Joined Sep 2020
sv0s
Pro
Jan 14, 2026 8:47 PM
1.1K Comments

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

I have one of these. I like the 45 watt charging speed, which is fast enough to keep a large tablet or small laptop running for for a while. The recharging speed is only 27 watts though, so recharging the power bank from 0 to 20000 mAh is kind of slow.
3
Jan 14, 2026 9:50 PM
955 Comments
Joined Jun 2007
ImGeoJan 14, 2026 9:50 PM
955 Comments
Great price! I have this and it works great
Note that if you plug in 2+ ports, its only 5V and doesnt do USB C PD
Jan 14, 2026 9:51 PM
215 Comments
Joined Oct 2015
lookalikehuuhJan 14, 2026 9:51 PM
215 Comments
Quote from Outrager View quoted comment :
Weird how INIU keeps putting USB-A ports on their portable batteries. Just put another USB-C.
The reason they do that is because there are some devices that aren't able to support USBC negotiation that USBC requires for power delivery. For example I have used battery packs like these to extend the runtime on my Icon mechanics flashlight that actually comes with a USBC connector, but it doesn't have the ability to negotate with USBC controllers. So it actually requires USBA to USBC cable to be able to charge, since it charges at 5v.
Plus it gives those with older devices a connector to plug into using their existing cables. Not everybody has the latest and greatest devices in their hands.
Jan 14, 2026 10:02 PM
4.3K Comments
Joined Dec 2007
OutragerJan 14, 2026 10:02 PM
4.3K Comments
Quote from lookalikehuuh View quoted comment :
The reason they do that is because there are some devices that aren't able to support USBC negotiation that USBC requires for power delivery. For example I have used battery packs like these to extend the runtime on my Icon mechanics flashlight that actually comes with a USBC connector, but it doesn't have the ability to negotate with USBC controllers. So it actually requires USBA to USBC cable to be able to charge, since it charges at 5v.Plus it gives those with older devices a connector to plug into using their existing cables. Not everybody has the latest and greatest devices in their hands.
You're right. That reminds me of some of the electronics I have that have a USB-C port but can't charge with a C-to-C cable.

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Jan 14, 2026 10:43 PM
155 Comments
Joined Nov 2009
jayo727Jan 14, 2026 10:43 PM
155 Comments
I like this brand and have 2 of the models without the built in cord. Im not a huge fan of these newer models with the cord built in though.

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