















🔌 Power up your life—fast, smart, unstoppable.
The UGREEN 300W 48,000mAh Portable Charger is a high-capacity, fast-charging power bank featuring PD3.1 140W bidirectional charging, automotive-grade Lifepo4 batteries for enhanced safety and longevity, and a smart digital display with LED lighting including SOS mode. Designed for professionals and outdoor enthusiasts, it supports simultaneous charging of multiple devices through five ports, making it an essential power hub for laptops, smartphones, and more during travel, work, or emergencies.























| ASIN | B0CJY37RT3 |
| Batteries | 8 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #6,002 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #525 in Cell Phone Portable Power Banks |
| Color | Grey |
| Customer Reviews | 4.2 4.2 out of 5 stars (194) |
| Date First Available | December 5, 2023 |
| Item Weight | 3.97 pounds |
| Item model number | PB770 |
| Manufacturer | Ugreen Group Limited |
| Other display features | Wireless |
| Product Dimensions | 5.71 x 6.31 x 3.03 inches |
| Special features | 48000mAh(153Wh), LED Light, PD3.1 140W, Portable Handle, Smart Digital Display |
T**.
Reliable, Rugged, Portable, Excellent quality & well made.
In over a decade of experiences with countless brands, along with no-name brands, this truly redefines the way I measure capacity, features, mobility , ruggedness, etc. This will qualify as one of the most reliable, power Bank/inverters, backups, of it's kind. Charge time is exemplary. It is heavy but the handle is secured. The sos dim/bright light came in handy. Not covered in markets info clearly in features; This is a HUB. While charging the PowerBank, simultaneously, device(s) can still be charged. Side by side with Ankers C100W PowerBank, this goes above & beyond.
M**H
love it
Great product got it on sale with a $60.00 off coupon so I paid 100 bucks for it love it we'll end up buying another one eventually unless they wanna send me a newer 1 as a review I use it to charge my laptop ( 2 ni 1 dell latitude ) my ROG Z1E and my ROG X Samsung Galaxy fold 6 and Samsung Galaxy Tab S9 plus and all of my buddies devices one hanging out they love how fast it charges everything I can get about 8 hours to 12 hours of gameplay like cyberpunk 2077 on the Z1 E same with pub G and that's before it even touches the battery on the device and get an additional 2 hours on the devices hope this helps quick clarification 8 to 12 hours is the rog only I'll full charge both plus the additional 2 from the rog for a total of 10 to 14 hrs of game play
8**S
Poor guy, You Deserve Better Review Status
Hi to All, I bought this power bank because I needed something that lasted awhile before I had to charge it again. It did just that. I use this lil buddy to keep my Samsung phone, along with two other cell phones topped off for an entire week. As a bonus, I can also keep my 10k power bank charged from 50% twice. After a week I'm looking at around 20% battery left. Keep in mind, because of heat dissipation during charging/recharging, the battery mah may vary. So don't get all caught up in labels. Cool light on the side is a bonus. Great carry handle. Recharges fast, but I don't use that feature, since it's awhile before I need it again. Great buy. Get yourself 1 if you need power for your many devices, or if you have homies you chill with often.
K**N
Very disaPPOINTED!
After two months, only one port remains working. Unit will refuse to power on unless it senses power draw on this single port, not even responding to power input attempts otherwise. When it is powered on, I have been able to perform the ten second power button reset, and the unit does appear to reset, but nothing affects the overall brokenness.
K**Y
So far so good.
Looks like I am the first to review it. Lol I would assume is that the marketing needs to get better. I didn't even know it was out yet until I accidentally ran into it here. Ugreens website didn't even mention anything about this battery pack. Been waiting since CES 2024 for this. First and foremost, the battery is great. If you are looking for something with a ton of juice in a small package (can't say extremely portal because its not. However, it is a good size and it has a good weight to it.) then this one is the one for you. We use it for our Samsung projector to power it up on the go. We watch about 3 movies before it dies out on us. Also, the 5 USBs (3 C's and 2 A's) makes it extremely convenient to charge multiple devices at once. Digital display is great to know exactly how much battery is left and how much power input and output the battery is doing. On top of this the flashlight is a plus when camping :) A bit early to tell how it will keep the performance up but will come back and add to the review.
C**X
1st one was a dud, 2nd one seems good. Solid Build and Features, I hope it lasts! *Update 5/28/25*
Hmmm there's a lot to say here but I'll try and keep it short. As another review mentioned, my first unit charged once and would never take a charge again, I'm pretty tech savvy and tried everything but no luck, I had to swap it out for a replacement. So that wasn't a good start. But I really liked the build and features of the unit so I gave it another shot. So far my replacement unit is holding up, I did a few discharges and recharges and it seems working properly. But as another review mentioned, my 100W name brand charger gets super hot, like scary hot (yes using a proper 100W cable) which means I'd never leave the house while it's charging and always keep an eye on it, also the unit itself also gets pretty warm, I'd say hot, not as hot as the charger but warm enough to make me think that over time this could affect battery life or worse. I did reach out to UGREEN about my issues and the excessive heat concerns and they were responsive and answered all my questions. As of now, my replacement is working as intended other than what seems to be excessive while charging which again UGREEN stated was normal, maybe it is. I gave them a second chance, maybe I got a dud, the unit fits my needs perfectly, time will tell about performance & longevity, hopefully it will last for years to come! So far, second unit is meeting my needs. Udate: 5/28/2025 - With my replacement unit, now as I recharge it, so far happened 2x, when I get to about 80% charged, the display flashes, it stops charging, slowly ramps up to charging again, after about 5 minutest it does it again, display flashes, stops taking a charge, then slowly starts taking a charge, then boom, repeat! I unplug everything, let it sit overnight, then I can get it to charge from 80% to 100% using the same "name brand" 100W charger and cable. I want to love this unit so bad as it's the perfect size & design BUT if it keeps acting up I'm going to ask for another replacement, maybe 3rd time is a charm! or a refund. Something doesn't seem right, again, time will tell, will update again.
S**Y
UGREEN 300W 48,000mAh Portable Charger Power Bank with Smart Digital Display
This puppy is powerful! A little on the hefty side but that is to be expected for what it can do. I have used it on my iPad, Samsung Ultra 24 and my Beats Studio Pro, all with less than 10% on each, at the same time and in a little over an hour they were all charged using only about 35%. The display is nice and easy to read and although it has a handy light on the side with 3 settings, I really haven't had any need to use it. but I'm sure it will come in handy if the power ever goes out.
L**L
普段持ち運ぶ限界の重さ。出張時のノートPC電源や携帯の充電、照明の問題が全て解決しました。付属ライトはもう少し明るくてもよかった
T**S
Great product 5/5
R**.
Bisher super. Schnelles Laden. Gute Kapazität. Gibt's zwar billiger aber dann nur mit langsameren Ein und Ausgängen... Habe nichts zu meckern
爆**猫
大容量の割に手頃なサイズ感が使い勝手が良い 持ち歩かないならば非常によい選択だったと思っている
R**.
Ich hatte es für eine Woche zum Wandern und Outdoor sachen machen mit und hielt einfach bis zum Schluss durch, gewohnte Ugreen Qualität halt... Einfach zu empfehlen für Leute die viel draußen Unterwegs sind
Trustpilot
1 week ago
2 days ago