ROMOSSPower 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

This is the best battery I have bought yet. It takes a little time to charge, but it's well worth it. Battery lasts a long time which is just perfect. Love that you can charge multiple devices at once. LED readout for how much charge is left is great. I was able to charge my phone off this battery while I played some games on it. Definitely worth the money.

I got it couple days ago and I am still testing the functionality of it sohere is the first impression:Looks:Beautiful, very clean design.Feel of the surface:SURFACE -It feels okay to touch. I would prefer it to be bit more glossy as it is mattbut then the trade off is the fingerprints. I think it will attract the dirt bit more then glossy though butnothing much I worry about.Functionality:DISPLAY that displays the current charge level HUGE PLUS. It is a must for me in a bank to know what is the current level of charge so I can comfortably use as needed knowing how long it will last based on how much power is in it.. The display window is not available on all banks out there so to me those are entirely useless.BLINKING LIGHT - When you charge it from the power source, the digits of a current level blink like a pulse so this tells you that it is charging. When you unplug it from charging the digits go steady so you know it is in the charged mode as opposed to charging mode. This is good, in case you would not plug it correctly for charging, you would get steady numbers so you could know to fix the plugging and not waste many hours thinking it is charging while it would not. This is important as often this kind of device needs to be charged in rush for emergency use and you have limited time to charge so this is very good feature.LOTS OF SIZES of the little outlets or whathever the name.. those holes that you plug in your devices.It has six different sizes of holes to plug different type of cables. This is very good because on the go oftenyou came across some device with weird size of the cable end and you need adapter. This solves this.Most popular six plug holes are there.Considerations:It is VEEEEEEEEEERy heavy for a bank. It is heavy because it has a lot of juice stored comparing to the average one but heavy as heck. I don't have a scale to tell you but their specified half Kg.. I am not sure.. it feels at least two three pound brick. It is not a problem if you are using it locally and have it sitting on a desk , but if you intendto parade about town with this it can be taxing on your arms.If you are flying and throw it in the suitcase it won't make that much difference comparing to solution it provides but otherwise not an ideal to hop around town. When I say HEAVY I really man it. I would think that it does feel like an actual brick that you build house with. Maybe I am wrong but i lifted it and went.. whoo.. my hand dropped..I still think it is a worthy purchase especially for the stationary use.My primary use is not to charge devices on the go with it but rather to turn a devices that need USB charge into a portable devices that can be taken anyway, as some of my stuff needs to be plugged to the computer permanently if I want to use it, no way to charge those. And for those that CAN be charged, I plug to this puppy instead and I can use them away from normal source of charge without cables and such and they can operate for hours or days depending on usage without recharging since they just use energy constantly from this bank.I wish it was less heavy and less expensive.I also wish it had a flashlight in it, I did not know there are some with one.Otherwise instructions did not came with mine and so I had no idea how long will it charge itself..so that is also a s urprise, it takes HOURS not minutes as I in my ignorance was expecting it to.So it takes solid 5 .. 6 hours to fully charge.It holds charge well and others already specified how much and what you can run on it.It seems that little devices like iPhone and such do not drain it much and you can refill themmany times energy-wise but the big items like iPad will only give you few charges.It is best to ask before you buy and need for specific use and those who own it cantell you from experience.

I have had this workhorse of a battery for 2 years already and it is still going strong. The battery life is amazing. I don’t 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 isn’t 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.

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.