ROMOSS Power Bank, 30,000mAh Portable Phone Charger with USB C 3 Outputs & 3 Inputs, External Battery Pack PD 18W with iPhone 15/14/13/12, iPad, Samsung Galaxy and More
Original price was: $42.99.$37.99Current price is: $37.99.
Price: $42.99 - $37.99
(as of Jan 13, 2025 21:01:10 UTC – Details)
Product Description
ROMOSS High Capacity Power Bank 
Genuine 30000mAh Capacity
The portable charger features a true 30000mAh battery capacity, ensuring prolonged battery life and multiple recharges on a single charge, delivering reliable power support for your devices.
Travel-Friendly Backup
Designed to be your trusted travel companion, the large portable charger ensures uninterrupted power supply during extended journeys, road trips, vacations, camping or outdoor adventures.
What conditions are needed for fast charging a phone with the power bank?
For fast charging via a power bank, ensure your phone, data cable, and power bank all support and are compatible with fast charging protocols, and connect to a fast charging port; note that charging multiple devices may disable fast charging.
What is low-current mode for the power bank and how do I enter it?
Low-current mode is used for charging low-power devices like earphones; press the button twice to enter (indicators will flash) and press once to exit.
How can I keep my power bank in the best possible condition?
Charge your power bank regularly. Even if you don’t use the power bank for a long time, remember to charge it every six months to keep the battery level around 50%. This is because power banks can discharge even when not in use.
ROMOSS High Capacity Power Bank
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Customer Reviews
4.5 out of 5 stars
14,276
4.2 out of 5 stars
164
4.7 out of 5 stars
27
4.5 out of 5 stars
2,694
4.4 out of 5 stars
3,105
4.7 out of 5 stars
26
4.4 out of 5 stars
1,335
Price
$37.99$37.99
$37.99$37.99
$49.99$49.99
$38.69$38.69
$61.74$61.74
$75.99$75.99
$89.99$89.99
Iutput Ports
3
3
2
3
3
2
3
Output Ports
3
3
4
3
3
3
3
Connector Type
USB A*2, USB C
USB A*2, USB C*1
USB A*2, USB C*2
USB A*2, USB C*1
USB A*2, USB C*1
USB A*2, USB C*1
USB A*2, USB C*1
Maximum Power
18W
30W
65W
18W
65W
65W
22.5W
Cable Included
✘
✔
✔
✘
✔
✔
✔
Size
6.57*3.15*1.29 in
6.65*3.21*1.32 in
6.32*2.75*1.70 in
6.57*3.15*1.29 in
6.67*3.21*1.73 in
6.38*3.19*2.38 in
7.09*3.29*2.6 in
Weight
1.49 lb
1.46lb
1.44 lb
1.48 lb
2.02 lb
2.25 lb
2.91 lb
Genuine 30000mAh Capacity: The portable charger features a true 30000mAh battery capacity, ensuring prolonged battery life and multiple recharges on a single charge, delivering reliable power support for your devices
Designed for Multi-Device Owners: Engineered for users with multiple devices, ROMOSS power bank offers Micro, Lightning, and USB C ports, enabling you to charge 3 devices simultaneously, perfect for multi-gadget needs
Versatile Charging Solution: With its high capacity, the USB battery pack serves as a versatile charging solution for a wide array of devices, ranging from phones to tablets, iPad, cameras, and switch
Travel-Friendly Backup: The large portable charger keeps your devices charged during extended journeys, road trips, vacations, camping or outdoor adventures, ensuring peace of mind wherever you go
Assured Quality and Safety: UL, CE, RoHS, and FCC certified, ROMOSS powerbank protects against overcharge, overvoltage, and short circuits, ensuring device safety during charging
What You Get: ROMOSS Sense8+ 30000mAh battery pack*1, user manual*1. Note: Cable is not included.
Customers say
Customers appreciate the power bank’s long-lasting battery that keeps devices charged for days. They find it useful and adaptable, working well with solar panels. Many customers consider it a good value for the price, even though it’s a little heavy. However, opinions differ on charging speed and size.
AI-generated from the text of customer reviews
6 reviews for ROMOSS Power Bank, 30,000mAh Portable Phone Charger with USB C 3 Outputs & 3 Inputs, External Battery Pack PD 18W with iPhone 15/14/13/12, iPad, Samsung Galaxy and More
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Original price was: $42.99.$37.99Current price is: $37.99.
edtech4genz –
Big and heavyâ¦..but I simply cannot live without it
I have had this workhorse of a battery for 2 years already and it is still going strong. The battery life is amazing. I donât think I have ever totally depleted this battery even after letting it sit for an extended amount of time and charging multiple devices. I do keep this in my end pocket of my baggallini purse when traveling and admittedly it does get a little bit heavy after a while however, I am not willing to risk losing photo moments over a dead battery, so I carry it. It stows nicely and I can run a cord from my bag to my devices easily. Sometimes on vacation, I just use this on the nightstand to charge all of my devices simply because there isnât an outlet nearby (perfect for cruising). This battery can charge multiple devices at once and fairly quickly, too. I always recommend this battery to everyone and I went looking in my history to order an additional one and I thought I would leave a review.
C. Jameson –
Great Battery at Great Price, Buy Now!
I own four of these now. Four. Because they are that good.No, they don’t cook or clean or wash your car. They are a power brick. So not a lot to them.But, they hold a charge. They charge quickly. They have simple and easy indicator lights to help know how depleted they are (do you really an LCD display saying 76% vs 74%?).AND, and, and….for the best part: they don’t run out of power! Okay, for those of you who can’t truly think for yourselves, of course they can run out of power. What I mean is that they’ve never run out of power on me. Whatever I’ve needed them for, they had plenty of juice. If I forgot to recharge them after heavy use because they had only one “bar” of power left, well, they still had enough power to do whatever I needed them for.And what am I using them for? I guess pretty basic stuff. Work and family needs. Meaning charging a laptop or three. Charging up to five iPhones, well … seven if our family brings the work phones along. Charging 5 iPads. Charging batteries for dSLR. Charging portable speakers. You name it. I bring them to the beach, a couple of them, cuz the kids forget to charge their phones or iPads overnight so they share one or two (I have three kids) on drive to the shore while wife uses another and maybe I have something charging in a third. And then we continue to use them at the beach and then on drive home. I use them to on long road trips also, so we’re not all fighting for the one or two charge points in our car. I bring them for work to power a laptop or portable printer. I bring them on vacation. I bring them pretty anytime anywhere. And they just work.Like I said, never reached the bottom of these. At end of day (or the following day or the one after that…) I just recharge them and let them sit until the next need arises. Even for sitting for weeks or months (I do have four so they’re not always used all the time…) they still hold a charge and are ready for action!Size wise they about 6.5″x1.25″x3.5″. Im sure the fully accurate measurements are listed. But in real life they are the size of of 4 or 5 iPhone Pro Max stacked on top of one another. Literally the footprint of my phone, just thicker. Note that’s the larger iPhone, but still. So, they can fit anywhere and go anywhere and charge whatever you throw at them.One thing, and you don’t need to do this, but Amazon used to sell a silicone sleeve to fit over these. I buy those too. Red, black or white. No real need for them other than I like them. You can find the silicone sleeve elsewhere still, I know because I’ve bought them. No, you don’t need the sleeve. But I like the extra grippy-ness and the way they look. Makes it a soft touch. Whatever, personal preference, but give those a try too if you find you like these like I know you will.
jsky –
Great product at a great price.
Opening the box I received a clean, sleek, professional looking battery. No weird flashlights nor LCD screens to drain it faster. It’s a very purpose built device and it achieves that purpose well. The battery is fairly large and heavy but certainly not over built for its enormous 30Ah storage tank. It fits easily in a backpack pocket but probably not in pants or jacket pocket. Multiple charge and discharge options are welcome as it eliminates traveling with multiple adapters. Its not really marked what plug is what but micro, lightening, type c, and usb are all different sizes so if your not sure how to match shapes or plug in your phone maybe a different battery is for you. Also you’ll want to charge the unit with a fast cable and plug as a cheap gas station phone charger is not going to have enough voltage output to fill 30 amps. (It will never fully charge)The instructions are only in Chinese (no English) but again…. plug in your phone. It turns itself on. Not many instructions should be required. Unit also turns off after your phone gets to 100% so no worries of wasting power or overcharging.Bottom line it does what it says well and looks good enough to sit on the table in your board room. Only real issue I see with that is all of your co-workers are going to be begging to plug their phones in.Great product with a great price tag.
Jamie T –
Bought for a friend
Charges great, a little heavy in design but great portability.Connects to all ports, including USBA B C and Lightning.Great build.
Louis H. –
It works fine but it’s drains fast, doesn’t really charge the amiunt of times they claim
It works as intended, but for the size it is, it really doesn’t hold much of a charge and really charge the devices I needed to charge that many times. Although that sounds like a stupid complaint I think it’s a valid one being that this charger is literally half a brick. It also takes a while for this thing to charge fully. Like I said there’s nothing wrong with it but really what are you getting out of this that you’re not getting out of maybe a 13,000 milliamp hour charger? Too bulky to be portable for my needs and really not the ultimate device charger, just an okay one, I could definitely tell that this one be able to really charge a laptop if needed, unless I have a dud *shrugs*
Dmitrii –
I started buying these when they didn’t know how good they are and were cheap. Now they cost more but I don’t want to switch to anything else. This model made about 15000 km of cycling with me. I trust it.