Sorry, this deal has expired. Get notified of deals like this in the future. Add Deal Alert for this Item
Frontpage Deal

ROMOSS Sense 8+ 30000mAh 18W Fast Charge Type-C PD Portable Power Bank EXPIRED

$23.40
$35.99
+ Free Shipping
+83 Deal Score
56,606 Views
ROMOSS Direct via Amazon has ROMOSS Sense 8+ Portable Power Bank (PHP30 PRO) on sale for $23.39 when you clip the 35% off coupon on the item page. Shipping is free.

Thanks to community member hamster6052 for finding this deal.

Deal Instructions:
  1. Visit ROMOSS Sense 8+ Portable Power Bank and add the item to cart
  2. Clip the 35% off coupon on the item page
  3. Proceed to checkout
  4. Your total should be $23.39, shipping is free
Features:
  • Weight 671g/23.66oz
  • Inputs
    • USB Type C
    • Micro USB
    • Lightning
  • Outputs
    • USB 1
    • USB 2
    • USB Type C
Share
Good deal?
You gave thanks to hamster6052 for this post.
Thank you!
hamster6052 posted this deal. Say thanks!

Original Post

Written by
Edited January 7, 2021 at 01:40 PM by
Amazon.com has ROMOSS 30000mAh Power Bank Sense 8+, 18W PD USB C Portable Charger with 3 Outputs & 3 Inputs External Battery Pack Cell Phone Charger Battery Compatible with iPhone 11, Xs Max, MacBook, iPad Pro for only $23.39 "when you apply 35% off coupon at product page" at checkout. Free Shipping
https://www.amazon.com/ROMOSS-Por...06&sr=8-36
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.
Deal
Score
+83
56,606 Views
$23.40
$35.99
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.
Questions & Answers BETA
aditya_awesome asked this question on 01-09-2021 at 08:50 AM

115 Comments

1 2 3 4 5

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined May 2009
L3: Novice
278 Posts
123 Reputation
Our community has rated this post as helpful. If you agree, why not thank ?
#16
Quote from Slimeyface
:
There are people in the other threads for this model that have reported that the actual battery capacity is lower than 30k mAh. Does anyone have any recent first-hand experience with this or testing one of these?
That's true for most of these battery packs. I'd like to know by what metric though. Did they actually open it up to see the capacity of the cells they use? If so, that would be misleading and false advertising. However, if they simply tried to charge their device and got less total energy than expected, that is not necessarily false advertising since all battery packs lose some energy in the charging process.

EDIT:

I just read one of the critical reviews. I've pasted it below for reference. The problem is they are not taking into account the actual energy capacity of the battery. They are simply assuming mAh can be converted between his MacBook and the battery pack and the iPad which is incorrect. The batteries in the MacBook are 3S which means they have a nominal voltage of something like 11V while these battery packs are 3.6-3.7v. So at least for this one, it is simply the user thinking they're smarter than they are. I mean, does he really think a $35 battery pack that is the size of two smartphones will be able to charge his laptop 7 times?? He must be lying when he claims he has a 20k mAh battery that can charge his macbook pro 4 times. That would break the laws of physics and would also not make sense why laptop manufacturers don't just put bigger batteries in their laptops if they can be so cheap and so small.

Quote :
I bought 3 of these. 30,000 mAh is 30 Ah (for reference). My MacBook Pro battery has a 4278mAh battery. From complete 0% to 100% this battery pack should charge my MacBook Pro more than 7.0126 times. But it only charges it to 100% 1 time, and then gets to about 70% the 2nd time before it is dead. The description says it will charge an iPad Mini 4 times, but at 30,000 mAh. it should charge it more than 3x's that amount of full charges. All 3 of these that I bought charge/discharge exactly the same.
For reference I have a 20,000 mAh pack and it charges my MacBook Pro 4 times fully, with enough left for my iPhone and iPad before dying.
So, like many other batteries on this site, 30,000 mAh is not truthful.

*I bought a battery a few months ago that claimed it was 26,800 mAh, and when I hounded the seller because I knew that was not possible, he immediately took the product down and told me it was actually 8000 mAh.

You have to be very careful when buying, as sellers will put whatever they want in the description, and that stinks. All 3 of these are going back.
Like Reaction
11
Funny Reaction
0
Helpful Reaction
4
Nothelpful Reaction
1
Reply
Last edited by upsidedownfunnel January 6, 2021 at 12:14 PM.
This comment has been rated as unhelpful by Slickdeals users
Joined Jul 2009
L3: Novice
125 Posts
195 Reputation
Our community has rated this post as helpful. If you agree, why not thank ?
#17
Something to keep in mind for those who would take this flying, it has 111WH printed on the battery which is more than the 100wh limit for carry on before you are technically supposed to get airline approval for. Of course YMMV on whether TSA will actually check closely, but potentially more hassle to bring something this large when flying.
Like Reaction
19
Funny Reaction
0
Helpful Reaction
7
Nothelpful Reaction
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Feb 2009
Deal Hunter
844 Posts
248 Reputation
Our community has rated this post as helpful. If you agree, why not thank ?
#18
Quote from Slimeyface
:
There are people in the other threads for this model that have reported that the actual battery capacity is lower than 30k mAh. Does anyone have any recent first-hand experience with this or testing one of these?
Bought mine back in November. Tested it twice in a row (full charge and discharge). I got about 26k after any boost conversion losses. This is pretty good in my book.
Like Reaction
3
Funny Reaction
0
Helpful Reaction
2
Nothelpful Reaction
1
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Apr 2018
L4: Apprentice
309 Posts
46 Reputation
#19
Quote from jdn
:
Sent back two as they did they same issue. Once my phone was charged, the battery turns off and then my phone discharges. I'd wake-up with 87% sometimes. Even my cheapo chargers keep my phone at 100% until they give it up.
This problem surfaces primarily with iPhones cause when it has optimized charging enabled it briefly stops at 80% which then the power bank thinks it's done and shuts off a few minutes later which sounds like what you're experiencing.
Like Reaction
3
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Aug 2011
L2: Beginner
158 Posts
34 Reputation
#20
Quote from Jahlapenoez
:
Something to keep in mind for those who would take this flying, it has 111WH printed on the battery which is more than the 100wh limit for carry on before you are technically supposed to get airline approval for. Of course YMMV on whether TSA will actually check closely, but potentially more hassle to bring something this large when flying.
'Getting approval' is misleading. Northwest and delta Airlines allow 1 per person per their web site . No 'getting approval' required
Like Reaction
1
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
5
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined May 2011
L2: Beginner
30 Posts
18 Reputation
#21
Got three on the last deal, followed instructions, drain it first before the first charge, charged fully the first time, second time it wouldn't charge at all, using usb-c, micro, lightning cable using different chargers. Two out of three don't work anymore. The third one is fine so far, I might return knowing the first two went bad quickly.
Like Reaction
2
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Oct 2005
L3: Novice
197 Posts
124 Reputation
#22
Delete (someone beat me to the punch on the TSA battery capacity issue :-P ).
Like Reaction
1
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply
Last edited by TTTTTTrent January 6, 2021 at 12:35 PM.

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined Aug 2008
Gonna Rep You A New One
4,939 Posts
1,195 Reputation
Pro
#23
Quote from upsidedownfunnel
:
That's true for most of these battery packs. I'd like to know by what metric though. Did they actually open it up to see the capacity of the cells they use? If so, that would be misleading and false advertising. However, if they simply tried to charge their device and got less total energy than expected, that is not necessarily false advertising since all battery packs lose some energy in the charging process.

EDIT:

I just read one of the critical reviews. I've pasted it below for reference. The problem is they are not taking into account the actual energy capacity of the battery. They are simply assuming mAh can be converted between his MacBook and the battery pack and the iPad which is incorrect. The batteries in the MacBook are 3S which means they have a nominal voltage of something like 11V while these battery packs are 3.6-3.7v. So at least for this one, it is simply the user thinking they're smarter than they are. I mean, does he really think a $35 battery pack that is the size of two smartphones will be able to charge his laptop 7 times?? He must be lying when he claims he has a 20k mAh battery that can charge his macbook pro 4 times. That would break the laws of physics and would also not make sense why laptop manufacturers don't just put bigger batteries in their laptops if they can be so cheap and so small.
I think you are correct. Thank you!
Like Reaction
0
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Oct 2011
L6: Expert
1,414 Posts
369 Reputation
#24
Quote from SteveOH99
:
In 4 1 even if it doesn't last too long.
i have one and it has been a workhorse. paid about 30 or it, i think. its big and bulky, but its awesome for weekend camping trips. i think youll be pleased. the nice thing is, no matter what charger wire i grab first, i can charge it with. micro, usb, lighting. tempted to snag another to give to my gf since she is always stealing mine, but i just bought a truck and told myself i need to not be buying stuff unless i needed it.
Like Reaction
0
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Apr 2019
L2: Beginner
31 Posts
10 Reputation
#25
Quote from Peerless_Warrior
:
This guy is losing a whopping 13% over night. I've owned Android and Apple phones, never heard of such a thing. If their phone isn't ancient, I suspect a rogue app like Facebook or Instagram is killing the battery.
Not only that but this guy is using a mophie battery case lmao
Like Reaction
1
Funny Reaction
2
Helpful Reaction
0
Nothelpful Reaction
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Oct 2011
L3: Novice
176 Posts
43 Reputation
#26
Has anyone harvested the batteries out of one of these?
Like Reaction
2
Funny Reaction
1
Helpful Reaction
0
Nothelpful Reaction
1
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Feb 2015
L2: Beginner
274 Posts
50 Reputation
#27
I bought this last time and the charging time was slow. Even using USB C to USB C my S20 would show regular slow charging. On top of that this is very heavy so I ended up returning it.
The cheap Omars one I bought a while back charged faster.
Like Reaction
1
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
1
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Jun 2020
New User
3 Posts
10 Reputation
#28
Quote from ketchupboy_123
:
Would this charge a laptop 100%?
No, likely not. It doesn't seem to charge my Macbook pro correctly.
Like Reaction
0
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
2
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Jun 2020
New User
3 Posts
10 Reputation
#29
Quote from idiggplants
:
i have one and it has been a workhorse. paid about 30 or it, i think. its big and bulky, but its awesome for weekend camping trips. i think youll be pleased. the nice thing is, no matter what charger wire i grab first, i can charge it with. micro, usb, lighting. tempted to snag another to give to my gf since she is always stealing mine, but i just bought a truck and told myself i need to not be buying stuff unless i needed it.
Put an extra one on the truck ! Smilie I have one constantly charging in all my vehicles
Like Reaction
0
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined Nov 2009
L2: Beginner
30 Posts
16 Reputation
#30
Coupons available on a number of their other chargers (e.g., https://www.amazon.com/dp/B07WW74MYF/ref=emc_b_5_i?th=1 [amazon.com], which is a similar charger with a digital display), though I'd consider this posting to have the best deal.
Like Reaction
5
Funny Reaction
0
Helpful Reaction
0
Nothelpful Reaction
0
Reply
Page 2 of 8
1 2 3 4 5
Join the Conversation
Add a Comment
 

Trending Stores

Coupons for Popular Stores

Link Copied to Clipboard