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populariconian | Staff posted Yesterday 02:47 PM
populariconian | Staff posted Yesterday 02:47 PM

15000mAh GENDOME LiFePO4 USB Power Bank + QC3.0 & PD3.0 + Wireless Charging $18 + Free S/H

$18

$70

74% off
Amazon
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deal [amazon.com]

$18 + Free S/H when you clip 24% coupon on the product page and checkout w/ promo code UY2BVBAB

About this item:
  • LiFePO4 Battery: Up to 3,000 charge/discharge cycles for ~10 years of use.
  • High Capacity: 15,000mAh (3.2V/48Wh); rated 8,000mAh (5V/3A) after voltage conversion.
  • Fast Charging: Supports QC3.0 and PD3.0; up to 22.5W charging speed.
  • Apple Watch Wireless Charging: Built-in pad eliminates the need for an extra charger, great for travel.
  • Dual Charging Options: Can be charged via USB or solar panel, ideal for camping and outdoor use.
  • Universal Compatibility:
    • USB-C input/output
    • Extra USB-C output
    • USB-A port
    • Wireless charging pad for Apple Watch
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
deal [amazon.com]

$18 + Free S/H when you clip 24% coupon on the product page and checkout w/ promo code UY2BVBAB

About this item:
  • LiFePO4 Battery: Up to 3,000 charge/discharge cycles for ~10 years of use.
  • High Capacity: 15,000mAh (3.2V/48Wh); rated 8,000mAh (5V/3A) after voltage conversion.
  • Fast Charging: Supports QC3.0 and PD3.0; up to 22.5W charging speed.
  • Apple Watch Wireless Charging: Built-in pad eliminates the need for an extra charger, great for travel.
  • Dual Charging Options: Can be charged via USB or solar panel, ideal for camping and outdoor use.
  • Universal Compatibility:
    • USB-C input/output
    • Extra USB-C output
    • USB-A port
    • Wireless charging pad for Apple Watch

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Deal Score
+7
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Price Intelligence

Model: GENDOME Portable Phone Charger, 15000mAh Portable Power Bank LiFePO4 Battery, QC3.0 & PD3.0 22.5W USB-C in&Out Fast Charging for Phone, Headphone, Watches, Tablet, Travel Essential Backup Battery

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9 Comments

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Yesterday 02:56 PM
1,014 Posts
Joined May 2008
SkidpalaceYesterday 02:56 PM
1,014 Posts
This is only 8,000 mAh @5V.
1
1
Yesterday 03:57 PM
275 Posts
Joined Dec 2006
Spider-HamYesterday 03:57 PM
275 Posts

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

Ships and Sold by Amazon is cheaper.

https://www.amazon.com/dp/B0DWXJS...i_atc&th=1
3
Yesterday 05:15 PM
250 Posts
Joined Nov 2016
fuzzycuffsYesterday 05:15 PM
250 Posts
What's the point of using LiFePO4 for portable power banks?
Yesterday 06:15 PM
6 Posts
Joined Jan 2026
KablukYesterday 06:15 PM
6 Posts
Quote from fuzzycuffs :
What's the point of using LiFePO4 for portable power banks?
Longevity and safety. It's not advisable, but if you leave this one charging in a hot car under the sun, it's much less likely to catch fire than a regular Li-ion power bank.
Yesterday 07:43 PM
5,104 Posts
Joined Dec 2009
SDSummerDayYesterday 07:43 PM
5,104 Posts
23w max so not like it fast charges like others do. And they are quite large for the capacity.
But it carries CCC cert, and I like to think that's the only reason one would buy it.
Yesterday 10:54 PM
31 Posts
Joined Dec 2007
topgYesterday 10:54 PM
31 Posts
They do look the same, although the ASIN and UPC codes are different.

Quote from Spider-Ham :
Ships and Sold by Amazon is cheaper.

https://www.amazon.com/dp/B0DWXJS...i_atc&th=1
Yesterday 11:51 PM
68 Posts
Joined Nov 2021
notboringYesterday 11:51 PM
68 Posts
Is it viable to keep one of these as a backup power bank in a cold car?

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Today 12:53 AM
2,150 Posts
Joined Oct 2008
asukaToday 12:53 AM
2,150 Posts
Quote from notboring :
Is it viable to keep one of these as a backup power bank in a cold car?

Far better than a traditional Li-ion. It'll still wear, but probably age at about 20% of a traditional power bank.

For some reason they haven't merged the two threads about this... but I have this model in every glovebox. And my cars endure both snow and 120 degree summers.
Today 12:55 AM
2,150 Posts
Joined Oct 2008
asukaToday 12:55 AM
2,150 Posts
Quote from SDSummerDay :
23w max so not like it fast charges like others do. And they are quite large for the capacity.
But it carries CCC cert, and I like to think that's the only reason one would buy it.

They are the best power banks for storing in cars that endure very hot or cold temps.

Normal power banks last a year in my climate. These I expect will last 3-4... Long enough for sodium banks to hit the market.

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