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expired Posted by Red_Liz | Staff • Sep 21, 2023
expired Posted by Red_Liz | Staff • Sep 21, 2023

Baseus PD 20W 10,000mAh Portable Charger (Black)

$13

$20

35% off
Amazon
113 Comments 96,351 Views
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Update: This popular deal is still available

Baseus US Flagship via Amazon has Baseus PD 20W 10,000mAh Portable Charger (Black) for $19.99 - 35% w/ clipped coupon = $12.99. Shipping is free w/ Prime or on $25+ or $35+ orders (minimum requirement varies by location).
  • Note: Must be logged in to clip coupons; coupons are typically one-time use.
Thanks to Staff Member Red_Liz for posting this deal.

Includes:
  • 1x Baseus 20W Power Bank
  • 1x 30cm USB A to USB C cable
Features:
  • USB C: 18w input, 20w output
  • USB A: 18w output
  • Micro: 18w input
  • Simultaneous charging (max 12W total power output while charging via 2 ports)
  • Power bank fully charges in under 3 hours

Editor's Notes

Written by citan359 | Staff
  • About this product:
    • Rating of 4.5 from over 9,000 Amazon customer reviews.
  • About this store:
    • Merchant Baseus US Flagship has earned a 98% positive lifetime rating (2,100 total ratings)
    • 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.
    • You can also earn cash back rewards on Amazon and Whole Foods purchases with the Amazon Prime Visa credit card. Read our review to see if it's the right card for you.
  • Additional note:

Original Post

Written by Red_Liz | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available

Baseus US Flagship via Amazon has Baseus PD 20W 10,000mAh Portable Charger (Black) for $19.99 - 35% w/ clipped coupon = $12.99. Shipping is free w/ Prime or on $25+ or $35+ orders (minimum requirement varies by location).
  • Note: Must be logged in to clip coupons; coupons are typically one-time use.
Thanks to Staff Member Red_Liz for posting this deal.

Includes:
  • 1x Baseus 20W Power Bank
  • 1x 30cm USB A to USB C cable
Features:
  • USB C: 18w input, 20w output
  • USB A: 18w output
  • Micro: 18w input
  • Simultaneous charging (max 12W total power output while charging via 2 ports)
  • Power bank fully charges in under 3 hours

Editor's Notes

Written by citan359 | Staff
  • About this product:
    • Rating of 4.5 from over 9,000 Amazon customer reviews.
  • About this store:
    • Merchant Baseus US Flagship has earned a 98% positive lifetime rating (2,100 total ratings)
    • 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.
    • You can also earn cash back rewards on Amazon and Whole Foods purchases with the Amazon Prime Visa credit card. Read our review to see if it's the right card for you.
  • Additional note:

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+100
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Top Comments

The batteries in all these power banks are 3.7V, but USB charging occurs at 5V. This means that every 10000 mAh battery pack has a usable maximum of 7400 mAh (10000 / 5 * 3.7). Then charging inherently incurs efficiency losses – about 20% on average – meaning you can expect the final (or "rated") capacity of pretty much all 10000 mAh battery packs to be around 5920 mAh (7400 * 80%) – though some are more or less efficient than others.

Not entirely sure that pertains to what you were seeing, but hopefully it helps!
I only got 26.55 Wh out of this in my initial test ([email protected] discharge, which, uh, is also less than the rated 20W; it can however do [email protected]).

It's labeled for ≥ 75% efficiency and ≥ 37 Wh, so it's either < 72% efficiency or < 37 Wh, either of which violates the text on the unit itself. I'm charging it back up now to see if we can wheedle out which it is, but this isn't a great first impression and I'm probably returning it.

edit: charging it back up at 5V@2A cost 39.3 Wh. I got 31.6 Wh discharging at [email protected]. So it seems like the efficiency is just bad.

edit 2025-03-01: this thing is just trash now. I don't know why I didn't return it. I can barely get half of these numbers out of it now.
Another Slickdeals Staff posting about this company....

112 Comments

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Sep 23, 2023
1,094 Posts
Joined Aug 2005
Sep 23, 2023
antifan
Sep 23, 2023
1,094 Posts

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

I got this today. I mainly wanted a couple powerbanks for use while traveling so bought this one and a magsafe style one (6000mah) from baseus also. There was a 5% combo discount so I said why not.

I'm not super thrilled with the form factor. Candy bar shape just feels weird. Maybe if it were more squared off but it really doesn't conform to any sizing of anything else I have. Too narrow / too long to be convenient I guess. The rounding / curved nature makes it less stable/flat for stacking. It'll work though.

The magsafe one was 20. Fits OK on my phone (s23 ultra with torras brand magsafe case). It wants to be slightly crooked.

Both offered wired or wireless fast charging without issue though. No problems with functionality I tested.
2
1
Sep 23, 2023
1 Posts
Joined Sep 2023
Sep 23, 2023
DelightfulDeer5416
Sep 23, 2023
1 Posts
there are better deals on AliExp
2
Sep 23, 2023
1,342 Posts
Joined Oct 2017
Sep 23, 2023
kickerstarter
Sep 23, 2023
1,342 Posts
Quote from Dealsprime440 :
these are fine and dandy until your phone overheats and you've got a small fire!
If this power bank cause your phone to overheat, the problem is with your phone.
Sep 23, 2023
780 Posts
Joined May 2006
Sep 23, 2023
sephiro499
Sep 23, 2023
780 Posts
Quote from flogger42 :
Someone set us up the vote
Main Screen Turn On!
2
Sep 23, 2023
1,537 Posts
Joined May 2011
Sep 23, 2023
nathan646
Sep 23, 2023
1,537 Posts
Had this July.. no problem. Not sure why it has a micro USB port but whatever.
Sep 24, 2023
161 Posts
Joined Nov 2014
Sep 24, 2023
natefansler
Sep 24, 2023
161 Posts

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

I bought this 6 months ago and keep it in my backpack. Works great for those days i'm away from my desk and my phone starts to get low. Charges my pixel phone quickly unlike my older anker that's the same size
2
Sep 24, 2023
582 Posts
Joined May 2017
Sep 24, 2023
BillytheGOAT
Sep 24, 2023
582 Posts
Quote from barrera_j :
that's not how advertisement works

it LEGALLY has to be shown as an advertisement if it is one... and they definitely feel like them
"If you purchase something through a post on our site, Slickdeals may get a small share of the sale.​" That pretty much means any of them can get money from it. And it's shown by one of the moderators here. I assume most of these posts are paid shills lately tbh.

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Sep 24, 2023
406 Posts
Joined Jul 2003
Sep 24, 2023
IBJanky
Sep 24, 2023
406 Posts
In for one. It'll be a stocking stuffer this xmas.

Thanks OP!
Sep 24, 2023
12 Posts
Joined Mar 2014
Sep 24, 2023
JoeyJ2133
Sep 24, 2023
12 Posts
Anker Portable Charger, Power Bank, 10K Battery Pack with High-Speed PowerIQ Charging Technology and USB-C (Input Only) for iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13 Series, Samsung Galaxy https://a.co/d/j5bt4bx
40% off
1
4
Sep 24, 2023
1,156 Posts
Joined Nov 2009
Sep 24, 2023
thatguymark
Sep 24, 2023
1,156 Posts
Quote from JoeyJ2133 :
Anker Portable Charger, Power Bank, 10K Battery Pack with High-Speed PowerIQ Charging Technology and USB-C (Input Only) for iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13 Series, Samsung Galaxy https://a.co/d/j5bt4bx
40% off
40% off what amount?
1
Sep 25, 2023
2,197 Posts
Joined Feb 2015
Sep 25, 2023
impasse
Sep 25, 2023
2,197 Posts
Quote from JoeyJ2133 :
Anker Portable Charger, Power Bank, 10K Battery Pack with High-Speed PowerIQ Charging Technology and USB-C (Input Only) for iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13 Series, Samsung Galaxy https://a.co/d/j5bt4bx
40% off
not this shit again, with the input-only type c..there's another deal thread for that! this is definitely a better charger (based on features only..also i only see 30% coupon on the page for that anker anyway)
Sep 26, 2023
1,855 Posts
Joined Jan 2014
Sep 26, 2023
LunchboxBen
Sep 26, 2023
1,855 Posts
Their 65W 20kmAh is $48, and I can use it with my MacBook Pro. That's appealing, but I'd like to find something similar with solar inputs and a little more capacity. If I could use it on a plane, that would be great, but something smaller would be good. I have a Bluetti PS70, so just wanted something a little better, but not huge, and no AC power.
Sep 26, 2023
5,022 Posts
Joined Jul 2010
Sep 26, 2023
BuddyLove99
Sep 26, 2023
5,022 Posts
Have it. Better than nothing but meh at best
Sep 27, 2023
63 Posts
Joined Aug 2015
Sep 27, 2023
bppcomplete
Sep 27, 2023
63 Posts

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

I only got 26.55 Wh out of this in my initial test ([email protected] discharge, which, uh, is also less than the rated 20W; it can however do [email protected]).

It's labeled for ≥ 75% efficiency and ≥ 37 Wh, so it's either < 72% efficiency or < 37 Wh, either of which violates the text on the unit itself. I'm charging it back up now to see if we can wheedle out which it is, but this isn't a great first impression and I'm probably returning it.

edit: charging it back up at 5V@2A cost 39.3 Wh. I got 31.6 Wh discharging at [email protected]. So it seems like the efficiency is just bad.

edit 2025-03-01: this thing is just trash now. I don't know why I didn't return it. I can barely get half of these numbers out of it now.
Last edited by bppcomplete March 1, 2025 at 08:49 PM.
3

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Sep 28, 2023
75 Posts
Joined Sep 2018
Sep 28, 2023
thefarcus
Sep 28, 2023
75 Posts
Quote from B1G_Mac :
The batteries in all these power banks are 3.7V, but USB charging occurs at 5V. This means that every 10000 mAh battery pack has a usable maximum of 7400 mAh (10000 / 5 * 3.7). Then charging inherently incurs efficiency losses – about 20% on average – meaning you can expect the final (or "rated") capacity of pretty much all 10000 mAh battery packs to be around 5920 mAh (7400 * 80%) – though some are more or less efficient than others.

Not entirely sure that pertains to what you were seeing, but hopefully it helps!
so which brand or style is good for max efficiency

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