ROMOSS60,000mAh Large Power Bank, High Capacity Portable Charger 22.5W USB C Fast Charging, Long Lasting External Battery Pack with 4 Outputs & 3 Inputs for iPad, iPhone, Samsung, Switch and More

The ROMOSS 30000mAh Power Bank PEA30 is an impressive product that is definitely worth owning. Its large capacity makes it perfect for powering up devices when you're on the go or when you need to have backup power available. One of the best things about this product is that it can live up to its claims. It delivers a ton of power, and it does so flawlessly.I've been using this power bank primarily to power up an RGB office chair, and it has worked flawlessly for that purpose. The chair can stay lit up without the need for a wall outlet, which is really convenient for an office chair with a cool RGB effect. I've also used it as a bucket to hold thunderbolts when I need power somewhere that power isn't readily available, and it has performed perfect in that regard as well.Another great feature of this power bank is the LCD screen that shows you exactly how much energy is left in the device. It's a simple, yet effective way to keep track of your power levels, and it's something that I find really useful. I don't need to look at blinking lights and assume it has 90% battery life versus 80%. It simply states "100" at full charge and starts counting down until it hits 0. That's good to know. It also displays AMPs and VOLTs with usage by pressing the button on the side.If I had to complain about anything with this product, it would be the instructions that were provided. They were lacking in detail from what I remember and didn't provide much guidance on how to use the device. However, it was pretty easy to figure out how to charge the power bank just by looking at the icons on the device. I didn't really try to study the instructions either so it could just have been me.I also found the black 6-inch USB C cable that comes with the product to be kind of subpar. It doesn't seem to carry a lot of energy, and when I tried to use it to fast charge my cell phone, the charging rates on my cellphone were really slow. Like really bad. It's better to invest in a better USB C 100 watt cable to get more energy into this product faster. I've included a decent cable in the links below that works good for transporting heavy power to whatever USB C you plug into it.That being said, I charged the power bank a few days ago and used it for some pictures of another Amazon product, and it lost no energy between uses and sitting idle. It seems to be pretty good at holding on to its charge without any issues. This gives me peace of mind knowing that if I need to grab it in a hurry, it'll be readily available with multiple days of phone charging before it's completely out of juice.I love owning the ROMOSS 30000mAh Power Bank PEA30. It's practical, well-built, and offers everything that I could ever want from a power bank. Its large capacity and reliable performance make it an excellent choice for anyone who needs a lot of power on the go. It's definitely a product that I would recommend to others who are looking for a high-quality power bank.Supplemental Items (USB C Cable that offers better charging):https://www.amazon.com/gp/product/B0B79QMZBY - Better USB C cable to charge with (100 watt)https://www.amazon.com/gp/product/B0BC1D2WGR - Connectors for USB C cable (recommended)Other items shown (RGB Rod powered by USB):https://www.amazon.com/gp/product/B099DLH3PD - RGB Rodhttps://www.amazon.com/gp/product/B07JZCNPNV - RGB Controller (requires item below)https://www.amazon.com/gp/product/B07GWMX3G3 - USB to SATA Power CableIf you liked the chair (Not recommended but it looks really cool put together):https://www.amazon.com/gp/product/B088LNF2N5 - Chair (poor quality & uncomfortable)https://www.amazon.com/gp/product/B09TKDYXTG - Bottom Chair Base (Recommended)https://www.amazon.com/gp/product/B09D3HRYFZ - Piston (Recommended)https://www.amazon.com/gp/product/B07BLRZTCY - Wheels (Not recommended - poor paint job)

Muy bueno y duradero, tiene mucho almacenamiento de energía, me carga muchas veces mi iPhone, muy bueno

After 3 years of use, this thing is still charging strong!Pros:-Multiple uses per full charge-Charge multiple devices at once-Visual display (Percent Remaining, Bolts, Amps)Cons:-Heavy but needed due to its Mah-Ports are flimsy (USB-C no longer works because the contact has separated with use-Takes a while to charge but amount of charges from device outweighs the time it takes-Amazon could not get me in touch with US customer service to solve. Would pay to repair.

[An update on my initial review of this product.] 5/20/24Since my initial review of the power pack, it works better now. They still need to make some improvements and work out some glitches, but in general, it is a pretty good unit. I now give it 4 stars instead of the 2 stars I gave at first.Also, their support team is great!!!I loved the look of this unit, the power, the features, and so I decided to purchase it.I did completely discharge the unit as they recommended, but after charging it for 18 plus hours, it would only charge up to 86%I returned the unit for a replacement. I received the replacement, but the same thing happened again. I don't know what I did, but I pressed and held the side button for a few seconds. I started charging it again and it worked this time. I fully charged it, but I didn't use it at all for 3 days after the charge.Unfortunately, I had an emergency and I was admitted to the hospital. I brought the "brick" with me, but when I plugged in my phone, the "brick" would not turn on at all, even after pushing the button on the side.I asked the nurse to plug the "brick" into an outlet to see what happens.Within 30 seconds, it came back to life, but the power had dropped to 95%I'm using it as I'm writing right now, and it is charging my phone.Other notes:I contacted the seller through Amazon and they were very nice to me.Be very careful if you contact support through their website:When I tried contacting the support staff through their website, I was asked to use a credit card or PayPal account for a $1.00 refundable fee. Then it brought me to a page asking me for an additional $56 to get a support rep to chat with me. Of course, I just exited the whole thing.I believe that this can be an amazing unit, but they need to make quite a few improvements to it.Maybe I'm the only one that had this problem but for now, I'm going to stay with Anker products. I never had a problem with them. I just thought that I'd give this one a try.

size does matter and this monstrosity is large enough to match my laziness about charging up power banks. in fact, i have another bank that is 50,000 mAh and i switch off between these two, next to my bed. each night, i charge up (despite manufacturer's advice not to do this), and it charges over and over and over again, barely draining. in fact, i charge lots of things up and it will go several days between charges. meanwhile, the unused unit is kept fully charged up. it takes about a day, so i have plenty of power at all times at my disposal. totally improbable to lug this brick around, but honestly, i'd stick it in a car for a long trip. i wouldn't advise carrying it around in a backpack unless you want long term spine curvature. i bought this when there was a promotion and i'd buy it again for myself, and my lazy friends who appreciate the finer aspects of sloth and gluttony.