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expiredMetaPhorse posted Mar 12, 2024 6:03 AM

Anker 24,000mAh 737 Portable Power Bank / 3-Port Charger

$90

$150

40% off
+ Free Shippingat Amazon
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Deal Details
AnkerDirect via Amazon has Anker 24,000mAh 737 Portable Power Bank / 3-Port Charger on sale for $90. Shipping is free.

Thanks to community member MetaPhorse for finding this deal.

Features:
  • Digital display shows the output and input power and estimated time for the portable charger to fully recharge.
  • 24,000mAh battery capacity
  • 2x USB-C, 1x USB-A Ports

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by MetaPhorse
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
AnkerDirect via Amazon has Anker 24,000mAh 737 Portable Power Bank / 3-Port Charger on sale for $90. Shipping is free.

Thanks to community member MetaPhorse for finding this deal.

Features:
  • Digital display shows the output and input power and estimated time for the portable charger to fully recharge.
  • 24,000mAh battery capacity
  • 2x USB-C, 1x USB-A Ports

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by MetaPhorse

Community Voting

Deal Score
+49
Good Deal

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128 Comments

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Mar 15, 2024 10:02 PM
160 Comments
Joined Jul 2023
FancyFuel997Mar 15, 2024 10:02 PM
160 Comments
Quote from vaca_loca :
Agreed that the specs/price seem decent, but the reviews definitely seem poor.
I looked at the reviews and thought they were mostly positive. Sorted by recent and filtered by verified purchase and product type. I get that it is a no name product. What made you decide that this product had poor review?
Mar 15, 2024 10:17 PM
10 Comments
Joined Jul 2011
kagekouenMar 15, 2024 10:17 PM
10 Comments
Quote from nuy6n6nn :
Would depend on the capacity of your phone battery wouldnt it?
Quote from nyc10036 :
Which phone? What battery capacity?
3300 mah phone battery, 24k Anker battery, about 7.27 charges in hard math, so at least 6 charges with overhead. Along the same lines, I just charged a Steam Deck which has a 5200 mah battery, and it dropped the Anker down to 50% (12000 mah drop).

I'm curious if owners are experiencing the same losses. The readout says 100% battery health.
Mar 15, 2024 10:31 PM
5.1K Comments
Joined Feb 2005
zoglogMar 15, 2024 10:31 PM
5.1K Comments
nevermind
Mar 15, 2024 10:58 PM
379 Comments
Joined Jun 2007
motor-headMar 15, 2024 10:58 PM
379 Comments
Does this work as an UPS? I mean can I have it plugged in into the wall to charge and also provide power to say a Raspberry Pi?

I have other much less expensive Anker batteries which stop working as soon as you plug them in.
Mar 15, 2024 11:11 PM
976 Comments
Joined Oct 2022
SaverDaddyMar 15, 2024 11:11 PM
976 Comments
Quote from motor-head :
Does this work as an UPS? I mean can I have it plugged in into the wall to charge and also provide power to say a Raspberry Pi?

I have other much less expensive Anker batteries which stop working as soon as you plug them in.
it works as a phone charger while it is also charging. Not sure if it would power a rasp pi though.
Mar 15, 2024 11:21 PM
1.9K Comments
Joined Feb 2021
nyc10036Mar 15, 2024 11:21 PM
1.9K Comments
Quote from kagekouen :
3300 mah phone battery, 24k Anker battery, about 7.27 charges in hard math, so at least 6 charges with overhead. Along the same lines, I just charged a Steam Deck which has a 5200 mah battery, and it dropped the Anker down to 50% (12000 mah drop).

I'm curious if owners are experiencing the same losses. The readout says 100% battery health.
Interesting.
I hope that someone with this pricey powerbank can help you out.
Mar 16, 2024 12:11 AM
379 Comments
Joined Jun 2007
motor-headMar 16, 2024 12:11 AM
379 Comments
Quote from SaverDaddy :
it works as a phone charger while it is also charging. Not sure if it would power a rasp pi though.
Thanks, that is exactly what I wanted to know. Thanks

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Mar 16, 2024 3:13 AM
738 Comments
Joined Jul 2017
Nintendo1474Mar 16, 2024 3:13 AM
738 Comments
Quote from kagekouen :
3300 mah phone battery, 24k Anker battery, about 7.27 charges in hard math, so at least 6 charges with overhead. Along the same lines, I just charged a Steam Deck which has a 5200 mah battery, and it dropped the Anker down to 50% (12000 mah drop).

I'm curious if owners are experiencing the same losses. The readout says 100% battery health.
They generally measure the amount of power these battery packs can put out at a rate of 5 volts, as that squeezes the most usable power out of them. Unfortunately, fast charging (anything above 5 volts) can drastically decrease the usable power you get out of these. This is especially noticeable for devices that are capable of both slow charging and fast charging. The exact same device will only use a tenth of the pack if you draw it slowly, but it'll drop it by a quarter if you let it go as fast as possible.
Mar 16, 2024 3:28 AM
1.2K Comments
Joined Nov 2005
AacidusMar 16, 2024 3:28 AM
1.2K Comments
For those on the fence, it reaches this price a few times a month.
Mar 16, 2024 4:52 AM
6.1K Comments
Joined Sep 2016
James_bond003Mar 16, 2024 4:52 AM
6.1K Comments
Quote from Numus19 :
Damn that is still on sale for 35 off + 20% off. Just ordered one
Amazon warned that this is a frequent return item.
After reading a few noticeable 1-star reviews, I decided not to pull the trigger.
Especially one of the reviewers lost his LG Gram Laptop and iPhone. This power bank toasted the LG Gram motherboard and almost did the same with the iPhone.
Mar 16, 2024 8:13 AM
496 Comments
Joined Dec 2016
DMathew3Mar 16, 2024 8:13 AM
496 Comments
Quote from nyc10036 :
What's bad about the shape?
It is shaped like a big, heavy block. My previous high capacity one was flatter, seemed easier for transport and carrying around.
Mar 16, 2024 12:30 PM
1.3K Comments
Joined Feb 2014
Obese_ICEagentMar 16, 2024 12:30 PM
1.3K Comments
Quote from Nintendo1474 :
They generally measure the amount of power these battery packs can put out at a rate of 5 volts, as that squeezes the most usable power out of them. Unfortunately, fast charging (anything above 5 volts) can drastically decrease the usable power you get out of these. This is especially noticeable for devices that are capable of both slow charging and fast charging. The exact same device will only use a tenth of the pack if you draw it slowly, but it'll drop it by a quarter if you let it go as fast as possible.
this explains why my fast charging battery pack goes from 100 to 0 much faster than my slow charger which is rated less but gives me more charges. Thanks, never knew
Mar 16, 2024 1:47 PM
1.9K Comments
Joined Feb 2021
nyc10036Mar 16, 2024 1:47 PM
1.9K Comments
Quote from DMathew3 :
It is shaped like a big, heavy block. My previous high capacity one was flatter, seemed easier for transport and carrying around.
But the Anker doesn't look like it is flatter either.
Mar 16, 2024 6:21 PM
654 Comments
Joined May 2010
FpsnutMar 16, 2024 6:21 PM
654 Comments

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

Quote from kagekouen :
3300 mah phone battery, 24k Anker battery, about 7.27 charges in hard math, so at least 6 charges with overhead. Along the same lines, I just charged a Steam Deck which has a 5200 mah battery, and it dropped the Anker down to 50% (12000 mah drop).

I'm curious if owners are experiencing the same losses. The readout says 100% battery health.
Hi, I can clear up some confusion here. I got carried away and it's going to be a long one. Tldr: Steam deck's battery is about half of Anker 737 so your results are perfectly fine.

First thing to keep in mind is that some of these Chinese power bank ratings are grossly exaggerated. They have no shame scamming people. Project Farm in their recent battery bank shoot out found the worst offenders only delivered 28% of their promised capacity.

Second, there's going to be a power loss due to overhead and heat. You're never getting back from the battery exactly how much you put in. People claim about 15-20% loss in energy stored.

Finally, mah rating alone doesn't really tell us how much energy there really is. The best way I can explain is using water as an example. If I take two pipes and fill them both with water. One pipe is twice longer than the other pipe, does it mean that I can fill the short pipe two times with water from the longer pipe? Of course not. Shorter pipe could be 3 times as wide as longer pipe. We not only need to know the length, we need to know the width or diameter of the pipe. Once full dimensions of container are known, we can calculate how many gallons or litters it holds and can compare the two and truly see which one is bigger and by how much. So in this case mah rating is like length of pipe and voltage rating is like width/diameter. We multiply voltage by amps and we get watt-hours or Gallons in my example. A quantifiable amount of energy stored in any battery that lets us compare them irregardless of their voltages.

Another way to think about it is gas cans. If I tell you I have a 5 gallon gas can you have a concrete idea of how much gas it holds. But if I tell you I have a 12" gas can you really have no idea, it could be 3 gallons, it could be 10 gallons. Mah and voltage rating is just dimensions of the battery (container), Watt-hour rating is the actual capacity.

Lithium-ion cells run at 3.6-3.8 volts. Anker rates their power bank at 24000mah at 3.6 volts. 24000 mah is 24 amps. 3.6v x 24amp = 86.4 Wh. According to Project Farm testing, Anker 737 delivered 69Wh or 79% of its claimed capacity. So it's more like a 19000mah. It's not horrible IMO compared to some other brands, it wasn't the most honest power bank on the list, but I think it's still pretty good. The best one on the list did 89% of claimed capacity. Anker may also have the most overhead consumption with that screen.

Steam battery is rated at 5200mah at 7.7v. "Pipe diameter" of steam deck battery is twice as wide as on Anker 737 and will require about 10400mah at 3.6 volts to fill it. Deck's battery is really just two 3.6v 5200mah cells linked together on the inside. 7.7v x 5.2amp = 40Wh capacity. That's almost half of Anker 737 rated capacity. Project Farms claims it has 69Wh capacity so I suspect you will not get another full charge even though your Anker showed 50% left, probably a 3/4 charge left.

Take anker 737, chop it in half with an axe, that's literally how much battery is stuffed into LCD SD. OLED SD is even better at 50Wh.

PF Video: https://youtu.be/G1sjqaRll2s

Ok, I'll see myself out Smilie

EDIT: Forgot to say, all these companies should really advertise Wh instead of mah on their power banks, but you know, 86 is just not as big or cool of a number as 24000!!!.
Last edited by Fpsnut March 16, 2024 at 11:50 AM.
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Mar 17, 2024 12:40 AM
806 Comments
Joined Nov 2018
FreshPrinceSumNLipsMar 17, 2024 12:40 AM
806 Comments
Quote from James_bond003 :
Amazon warned that this is a frequent return item.
After reading a few noticeable 1-star reviews, I decided not to pull the trigger.
Especially one of the reviewers lost his LG Gram Laptop and iPhone. This power bank toasted the LG Gram motherboard and almost did the same with the iPhone.
Sure there was some user error involved.

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