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expiredLovelyMia posted Mar 13, 2023 03:52 AM
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expiredLovelyMia posted Mar 13, 2023 03:52 AM

imuto 20000mah Power Bank (Black) $16.49

$16

$33

51% off
Amazon
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imuto 20000mah Power Bank (Black) $16.5
code: 50offx20
https://www.amazon.com/gp/product/B0BDDSNV2K
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imuto 20000mah Power Bank (Black) $16.5
code: 50offx20
https://www.amazon.com/gp/product/B0BDDSNV2K

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Mar 13, 2023 09:51 AM
323 Posts
Joined Jun 2008
jerryfreakMar 13, 2023 09:51 AM
323 Posts
cant figure out what PD output voltages this supports but in for 1, will report when i get it
Mar 14, 2023 03:49 PM
22 Posts
Joined Aug 2019
STANirvanaINDMar 14, 2023 03:49 PM
22 Posts
Quote from jerryfreak :
cant figure out what PD output voltages this supports but in for 1, will report when i get it
Looks like 5V 3A, 9V 2.22A, 12V 1.67A...which is strange for a PD 3.0 since 9/10 makers moved to 15V and 9V. Hopefully I'm wrong (looked at a review pic for the specs) since only up to 12V isn't great...
Last edited by STANirvanaIND March 14, 2023 at 10:26 AM.
Mar 14, 2023 09:09 PM
1,021 Posts
Joined Oct 2012
MxxCMar 14, 2023 09:09 PM
1,021 Posts
Quote from STANirvanaIND :
Looks like 5V 3A, 9V 2.22A, 12V 1.67A...which is strange for a PD 3.0 since 9/10 makers moved to 15V and 9V. Hopefully I'm wrong (looked at a review pic for the specs) since only up to 12V isn't great...
super fast battery charging is not good for the long term health of the battery. that applies both, your phone and this battery too. so max 18W charging of this batt is fine. and 22W into phone is fine too. It's not the fastest but you are not tied to sit in one spot..that's the point of portable batts.
Mar 14, 2023 09:46 PM
15 Posts
Joined Jul 2022
Sweglord69Mar 14, 2023 09:46 PM
15 Posts
Quote from MxxC :
super fast battery charging is not good for the long term health of the battery. that applies both, your phone and this battery too. so max 18W charging of this batt is fine. and 22W into phone is fine too. It's not the fastest but you are not tied to sit in one spot..that's the point of portable batts.
It limits the use case. A lot of people would want a battery like this for a steam deck or a switch, but a max of ~20W is not enough.
Mar 15, 2023 10:31 AM
1,481 Posts
Joined Nov 2022
TarkovMar 15, 2023 10:31 AM
1,481 Posts
Quote from Sweglord69 :
It limits the use case. A lot of people would want a battery like this for a steam deck or a switch, but a max of ~20W is not enough.
The deck charger is only 45W so this would still extend your game time significantly.
Mar 15, 2023 01:31 PM
282 Posts
Joined Jun 2020
tiggeroozeMar 15, 2023 01:31 PM
282 Posts

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

Seems like a lot of features for the price, but the capacity is highly suspicious.

I own 20+ powerbanks and I test and track them for capacity, as well as weigh them. I have found weight is a very good way to gauge capacity claims if you can't test the powerbank. It's not perfect, but weight is directly correlated to capacity. Due to current battery tech you can't beat a certain peak efficiency at any one time. So you can often spot bald-face liars just by their capacity claims by looking at their weight.
At 40 Ah/kg, this would be an *extremely* efficient powerbank, or they are lying about the capacity.
It is not uncommon for manufacturers to use the battery capacity, not the bank capacity, to rate their powerbanks. The 3-4V batteries they use will have a rated capacity by the manufacturer but when used together in a power banks they won't deliver the same Ah/Wh. This is because there are inefficiencies in voltage conversions made by the power bank electronics, and manufacturers also lie about their cell capacity.
It's more likely this is closer to a 15 Ah power bank.
1
Mar 15, 2023 01:33 PM
22 Posts
Joined Aug 2019
STANirvanaINDMar 15, 2023 01:33 PM
22 Posts
Quote from Tarkov :
The deck charger is only 45W so this would still extend your game time significantly.
Only if you're not playing (or playing something light maybe) while it's charging.

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Mar 15, 2023 01:35 PM
22 Posts
Joined Aug 2019
STANirvanaINDMar 15, 2023 01:35 PM
22 Posts
Quote from MxxC :
super fast battery charging is not good for the long term health of the battery. that applies both, your phone and this battery too. so max 18W charging of this batt is fine. and 22W into phone is fine too. It's not the fastest but you are not tied to sit in one spot..that's the point of portable batts.
My use case (and I'd assume a lot of other people's who buy a 20000 PD battery pack) isn't charging my phone, not that I don't use them for that too.
Mar 15, 2023 07:18 PM
8,842 Posts
Joined Mar 2018
WooHoo2YouMar 15, 2023 07:18 PM
8,842 Posts
Quote from Sweglord69 :
It limits the use case. A lot of people would want a battery like this for a steam deck or a switch, but a max of ~20W is not enough.
I got super excited when I saw the price thinking it would be perfect for the Steam Deck however 20-is watts is just too low....for me anyway. Still a great price though.
Quote from Tarkov :
The deck charger is only 45W so this would still extend your game time significantly.
You are most likely right if you were proactive about using it to maintain the battery however my use case (might not be the same for everyone) would be either rescuing a dying battery while still playing a power hungry game however this might just tread water. Or the other is to quickly regain a fat chunk of charge quickly while not using the SD then stow the battery pack away once you start playing again.
Mar 16, 2023 01:40 AM
1,481 Posts
Joined Nov 2022
TarkovMar 16, 2023 01:40 AM
1,481 Posts
Quote from WooHoo2You :
You are most likely right if you were proactive about using it to maintain the battery however my use case (might not be the same for everyone) would be either rescuing a dying battery while still playing a power hungry game however this might just tread water. Or the other is to quickly regain a fat chunk of charge quickly while not using the SD then stow the battery pack away once you start playing again.
Yeah treading water was what I was mostly thinking about getting this for. I was looking at the JSaux "case" system with its little strap thing to hold the battery bank on the back of the steamdeck.
Mar 16, 2023 04:44 AM
1,021 Posts
Joined Oct 2012
MxxCMar 16, 2023 04:44 AM
1,021 Posts
Quote from STANirvanaIND :
My use case (and I'd assume a lot of other people's who buy a 20000 PD battery pack) isn't charging my phone, not that I don't use them for that too.
My use case and all of my friends buy such batteries for their phones, not laptops.
Mar 16, 2023 11:06 PM
8,842 Posts
Joined Mar 2018
WooHoo2YouMar 16, 2023 11:06 PM
8,842 Posts
Quote from MxxC :
My use case and all of my friends buy such batteries for their phones, not laptops.
Now, not saying anything against planning for the worst or overkill when it comes to redundancy however a 20000mah battery should be able to charge most phones 5x or more. Unless you are going camping and this is your only means for charging a cell phone then this battery pack seems a little excessive. You could also charge all your friends' phones too Wink
Mar 17, 2023 01:00 AM
1,021 Posts
Joined Oct 2012
MxxCMar 17, 2023 01:00 AM
1,021 Posts
Quote from WooHoo2You :
Now, not saying anything against planning for the worst or overkill when it comes to redundancy however a 20000mah battery should be able to charge most phones 5x or more. Unless you are going camping and this is your only means for charging a cell phone then this battery pack seems a little excessive. You could also charge all your friends' phones too
During prolong, active sessions of Ingress I need to charge my phone 2-3 times a day. Plus extra capacity allows me to simultaneously charge somebody else's phone if they are low. And 20kmah is just larger enough that I don't need to worry about charging it after every single use.
Mar 17, 2023 03:42 AM
3,511 Posts
Joined Aug 2007
graphixvMar 17, 2023 03:42 AM
3,511 Posts
Quote from tiggerooze :
Seems like a lot of features for the price, but the capacity is highly suspicious.

I own 20+ powerbanks and I test and track them for capacity, as well as weigh them. I have found weight is a very good way to gauge capacity claims if you can't test the powerbank. It's not perfect, but weight is directly correlated to capacity. Due to current battery tech you can't beat a certain peak efficiency at any one time. So you can often spot bald-face liars just by their capacity claims by looking at their weight.
At 40 Ah/kg, this would be an *extremely* efficient powerbank, or they are lying about the capacity.
It is not uncommon for manufacturers to use the battery capacity, not the bank capacity, to rate their powerbanks. The 3-4V batteries they use will have a rated capacity by the manufacturer but when used together in a power banks they won't deliver the same Ah/Wh. This is because there are inefficiencies in voltage conversions made by the power bank electronics, and manufacturers also lie about their cell capacity.
It's more likely this is closer to a 15 Ah power bank.
I agree. This power bank looks a lot like the Tozo bank that was earlier $15 and rated at 20,000. It did do QC3 etc but it does not seem like a 20,000 power bank to me. 15,000 sounds about right.

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Mar 17, 2023 03:47 AM
3,511 Posts
Joined Aug 2007
graphixvMar 17, 2023 03:47 AM
3,511 Posts
Quote from WooHoo2You :
Now, not saying anything against planning for the worst or overkill when it comes to redundancy however a 20000mah battery should be able to charge most phones 5x or more. Unless you are going camping and this is your only means for charging a cell phone then this battery pack seems a little excessive. You could also charge all your friends' phones too Wink
It's not going to be 20,000. But, a larger pack allows you to use it without heavily discharging it and allows a lot of charge to go in without cramming it to 100%. I use one like this with a solar panel and don't have to worry as much about it filling full left unattended.

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