TECHSMARTER 30000mAh 65W USB-C Fast Charging Laptop Power Bank. Portable Charger for iPhone 16, 15, 14, Samsung Galaxy S24, S23, Androids, iPad Pro, MacBook Pro, Chromebook, Steam Deck, Dell, HP

It holds charges super fast. Multiple charges off a full battery. However it is not light weight.

So I bought my 2nd one a few weeks ago. My initial one I bought less than 1 yr. ago failed. It was blinking. I contacted them, and they gave me no grief!!! No 1000 and 1 questions. I sent them a video of what it was doing and they immediately sent me a new one. Didn't even ask for the old one back. I understand sometimes things fail. It's what a company does to make it right. They get a A for making it right. I definitely recommend this product not only based on the super-fast charging, but when I had a problem the way they handled it instilled confidence in this product/company. I bought a second one so I never have to immediately put the one I used on a charger. I get about 3 charges on my Galaxy 21

Very fast charging, best power bank 👍👍👍

Worked great for 1 year. A few months ago it stopped working. Now it will charge for a few minutes then it starts to suck power from your device instead of charging it. I give it 3 stars because it worked really well for almost a year.

Samsung phones will charge at "super fast charging 1.0" which is 25 watts. Tested on S23 Ultra. 0-100% charge time is 1 hrs and 40 mins, almost double the advertised speed. This is misleading and underhanded.

The mAh rating of 30,000 is pretty much the standard for the larger backups (between 26,800 to 30,000 mAh). Most of the portable battery backups of this size do not have the 65 watts of power. If you are just looking for a backup for your phones, tablets, Bluetooth speakers and headphones, etc., you can get a smaller style backup. The real decision is what you are looking to accomplish with the backup device. I have backups that are for making sure that if I am outdoors, and away from my car, I can top off my mobile devices, with no problems. I always have a few ready to go, but this is for convenience, and not true emergency use. Having a backup that can recharge all of your mobile devices, and your laptop, is vital for emergencies, when you have no power at home, or work.I have been stuck in weather related blackouts, and usually (with a few exceptions) I get my power back by the next day. Of course this seems to happen more when it is freezing outside, and that is a totally different category, if you have the money for an emergency generator. If you have a medium, or larger home, that generator will run you around $10,000, although you can save if you can install it yourself. You can spend more for all the perks, like ones that start automatically, if you lose power, and they just start. There are also smaller sizes that are much less expensive, and just have a few AC outlets. I only mention this because you don’t need any small emergency battery backups, if you have a generator.The beauty of this backup is it can recharge most laptops, in an emergency, and keep your phones and tablets charged too. Small and midsize laptops usually use chargers that max out at 65 watts. I have tried charging larger laptops, like 15’ MacBook Pro’s, and even though they use chargers that are rated higher, if you put them to sleep, they will recharge perfectly with 65 watts, and you can use them to, and they will keep their charge, if you need them. So if you are looking for a first backup battery, or you have a few that aren’t able to charge your laptop, this is truly perfect. It fast charges, and has a digital display, which is a great option. You have all the outputs that you need, and it holds its charge, when being stored. If you are depending on these for emergency use, you should top them off, around every month. The beauty of the digital display is you may not have to top it off at all, or easily check how much it has stored. Obviously, if you have it waiting for emergency use, and you check it, and it has over 90% remaining, you can wait to recharge it. Excellent quality and design. Highly recommended!

I'm giving this 4 stars because it's better than most. I've tried plenty of power banks and they're usually garbage. This one does seem to be around 30k mah at least, close to 20k output. That's why it's heavy! You're not supposed to fly with these, legally.Accepts a charge faster than most power banks also. But once again I'm using a very good Gan charger and it will not accept more than 44 watts when it's at 40-90% charge. I've tried numerous cables, which can make a huge didderence BTW. Good build quality.

For one thing, 30,000 mAh is a very large capacity, as you usually see 20,000 mAh being the highest capacity. To give everyone a reference of how much that is, the total battery capacity of an iPhone 13 Pro Max is 4,352 mAh, of a Samsung Galaxy S22 Ultra 5G is 5,000 mAh, and of a Google Pixel 6 Pro is 5,003 mAh. As you can tell, that's a substantial amount of power, yes?Okay, so here's the kicker- as long as you already have a power brick that can charge at at least 45 watt power delivery, and a cord capable of that as well that has a USB-C on both ends (because that's what PD usually means I believe), you can completely charge up this power bank in about 3 hours!!! So it goes without saying that if you don't have a power brick like that or larger, and a wire capable of that, then it's something you very much need right now. Don't worry, they aren't super pricey, and their sizes are getting smaller everyday. I mean, it's up to you, but this is your time we're talking about here, right? And right now, the market is still flooded with brand new power banks that will have a 20,000 - 30,000 mAh capacity, that will take you 8-16 hours to fully charge. I'm sorry to say this, but the reason the market is still flooded with that, when something like this already exists, is because there's just that many people who have no idea how all of this charging business works. Hey, I didn't have a clue just a couple of years ago, but I've been teaching myself little by little. And I don't care what you think of yourself, you CAN teach yourself too. All you have to really do, is decide to do so.