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chunkydude 41K Views
Apr 1, 2024 6:18 AM

Prime Members: 40000mAh ROMOSS Portable Charger Power Bank w/ 18W PD Output

$22

$60

63% off
+ Free Shippingat Amazon
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Deal Details
ROMOSS Direct via Amazon has for Prime Members: 40000mAh ROMOSS Portable Charger Power Bank w/ 18W PD Output for $43.99 - 50% 'clipped' coupon = $21.99. Shipping is free.

Thanks to Community Member chunkydude & LovelyCheetah [Discuss] for finding this deal.

Features:
  • Can charge 3 devices simultaneously at a max speed up to 3 amps
  • 2-inputs: Micro USB + USB Type C
  • Takes 16 hours to be fully charged using a 18W PD wall charger (not included)
  • Support 18W Power Delivery Fast Charging (9V 2A)

Editor's Notes

Written by RazorConcepts
  • While this is an older model power bank, it still offers a large 40,000mah capacity at a low price. This power bank is a good choice for those who want more value in large capacity rather than super fast charging.
  • About this Product:
    • This is rated 4.4 out of 5 stars based on over 5,000 ratings at Amazon.
  • About this Store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by chunkydude
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
ROMOSS Direct via Amazon has for Prime Members: 40000mAh ROMOSS Portable Charger Power Bank w/ 18W PD Output for $43.99 - 50% 'clipped' coupon = $21.99. Shipping is free.

Thanks to Community Member chunkydude & LovelyCheetah [Discuss] for finding this deal.

Features:
  • Can charge 3 devices simultaneously at a max speed up to 3 amps
  • 2-inputs: Micro USB + USB Type C
  • Takes 16 hours to be fully charged using a 18W PD wall charger (not included)
  • Support 18W Power Delivery Fast Charging (9V 2A)

Editor's Notes

Written by RazorConcepts
  • While this is an older model power bank, it still offers a large 40,000mah capacity at a low price. This power bank is a good choice for those who want more value in large capacity rather than super fast charging.
  • About this Product:
    • This is rated 4.4 out of 5 stars based on over 5,000 ratings at Amazon.
  • About this Store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by chunkydude

Community Voting

Deal Score
+45
Good Deal
Visit Amazon

Top Comments

Nag7
1Comments
14Reputation
The largest power bank that is allowed on planes depends on the airline's specific regulations, as they may have different restrictions on the size and capacity of power banks. However, in general, most airlines allow power banks with a capacity of up to 100 watt-hours or 27,000mAh in carry-on luggage.
Go to Comment
Prologik
2.6KComments
609Reputation
This battery supposedly has a 40,000 mAh rating. I discharged it and charge it according to package instructions. Used it last weekend for the first time. Charged two phones two times each. Each phone has a 2.5 mAh battery in both were at approximately 40% when charged. After two charges for the two phones, the battery showed 37% power left. Should have been a minimum of 75%, If the phone batteries were at zero. Takes almost 2 days to charge!
Go to Comment
dnb925art
346Comments
107Reputation
I have the 30,000mAh model from the same company and it has been great so far, Thinking about getting this 40K model as $22 is a great deal. Just bear in mind that this is pretty much good for charging phones or even an undocked Nintendo Switch as it maxes out at 18W, although it COULD power a laptop with Type C inputs albeit it would probably lose power at a slower rate or charge a laptop slowly if it was turned off.
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45 Comments

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Apr 2, 2024 12:42 AM
346 Comments
Joined Mar 2014
dnb925artApr 2, 2024 12:42 AM
346 Comments

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

I have the 30,000mAh model from the same company and it has been great so far, Thinking about getting this 40K model as $22 is a great deal. Just bear in mind that this is pretty much good for charging phones or even an undocked Nintendo Switch as it maxes out at 18W, although it COULD power a laptop with Type C inputs albeit it would probably lose power at a slower rate or charge a laptop slowly if it was turned off.
2
1
Apr 2, 2024 12:50 AM
502 Comments
Joined Jan 2006
KnightDiverApr 2, 2024 12:50 AM
502 Comments
Pretty good deal for a nice battery pack. The display can show the output current when being used. I like mine.
Apr 2, 2024 12:54 AM
1.1K Comments
Joined Aug 2011
JXN89Apr 2, 2024 12:54 AM
1.1K Comments
I don't think you can fly with these can't you?
Apr 2, 2024 12:57 AM
331 Comments
Joined Feb 2007
rentownApr 2, 2024 12:57 AM
331 Comments
Quote from PrisN View quoted comment :
I don't think you can fly with these can't you?
does anyone know?
Apr 2, 2024 12:58 AM
1 Comments
Joined Jul 2019
Nag7Apr 2, 2024 12:58 AM
1 Comments

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

Quote from rentown View quoted comment :
does anyone know?
The largest power bank that is allowed on planes depends on the airline's specific regulations, as they may have different restrictions on the size and capacity of power banks. However, in general, most airlines allow power banks with a capacity of up to 100 watt-hours or 27,000mAh in carry-on luggage.
4
Apr 2, 2024 12:58 AM
18 Comments
Joined Oct 2017
joji91Apr 2, 2024 12:58 AM
18 Comments
Great deal. Thanks OP
Apr 2, 2024 1:01 AM
166 Comments
Joined Nov 2006
empire_br23Apr 2, 2024 1:01 AM
166 Comments
The IATA is an international aviation organization. It's established clear rules for flying with power banks. You can take 2 power banks with you on the plane. Together, they can have a capacity of up to 27,000mAh (100Wh). Make sure you put those power banks in your carry-on luggage. They're not allowed as checked luggage. Don't put your power banks at the bottom of your bag, but somewhere you can easily access them. At the security check, you often have to show your power bank.

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Apr 2, 2024 1:03 AM
2.6K Comments
Joined Dec 2006
PrologikApr 2, 2024 1:03 AM
2.6K Comments

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

This battery supposedly has a 40,000 mAh rating. I discharged it and charge it according to package instructions. Used it last weekend for the first time. Charged two phones two times each. Each phone has a 2.5 mAh battery in both were at approximately 40% when charged. After two charges for the two phones, the battery showed 37% power left. Should have been a minimum of 75%, If the phone batteries were at zero. Takes almost 2 days to charge!
1
1
Apr 2, 2024 1:03 AM
2.8K Comments
Joined Nov 2010
CreditGuyApr 2, 2024 1:03 AM
2.8K Comments
Quote from dnb925art View quoted comment :
I have the 30,000mAh model from the same company and it has been great so far, Thinking about getting this 40K model as $22 is a great deal. Just bear in mind that this is pretty much good for charging phones or even an undocked Nintendo Switch as it maxes out at 18W, although it COULD power a laptop with Type C inputs albeit it would probably lose power at a slower rate or charge a laptop slowly if it was turned off.
This one is a little over two pounds, which I assume is close to what yours weighs. Does yours seem like a brick or is it unnoticeable in your coat pocket or bag?
1
Apr 2, 2024 1:03 AM
551 Comments
Joined Dec 2019
ClassReptiliaApr 2, 2024 1:03 AM
551 Comments
Quote from PrisN View quoted comment :
I don't think you can fly with these can't you?
I fly with these smaller battery packs often (25+ flights annually) and take them in my carry-on. No problems and never checked by TSA. I typically have 3 battery packs with me: 8,000mah, 10,000mah, and 40,000mah. The 40,000mah even has the cables built in so it probably looks "fishy" in the TSA machines but they never pull them. It is the checked bags that are not supposed to have battery packs.
Apr 2, 2024 1:18 AM
75 Comments
Joined Dec 2021
FabulousBanana1321Apr 2, 2024 1:18 AM
75 Comments
I don't know, it's from 2020 and thus offers a micro usb port for input charging...and with max output at 18 watts, not worth it imo.
Apr 2, 2024 1:22 AM
1.5K Comments
Joined Oct 2006
exmApr 2, 2024 1:22 AM
1.5K Comments
For this amount of money, no risk. Thanks.
Apr 2, 2024 1:27 AM
552 Comments
Joined Feb 2018
OutlawCecilApr 2, 2024 1:27 AM
552 Comments
lol price fluctuates between $23 and $60 just so they can throw in coupons that sound amazing. Ugh I hate these sales tactics...
Apr 2, 2024 1:28 AM
278 Comments
Joined Nov 2013
PowerBuyerApr 2, 2024 1:28 AM
278 Comments
Bad reviews on Amazon

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Apr 2, 2024 1:33 AM
262 Comments
Joined Jan 2012
wood530Apr 2, 2024 1:33 AM
262 Comments
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