INIU Portable Charger, 20000mAh USB C in & Out Power Bank Fast Charging, PD 3.0+QC 4.0 LED Display Phone Battery Pack Compatible with iPhone 17 16 15 14 13 Pro Samsung S23 Google iPad Tablet, etc

This 22.5W 20,000mAh power bank is easily the best portable charger I’ve ever owned. It’s become an essential part of my daily routine and travel kit. Honestly, if you're looking for a power bank for day trips or traveling and don't want to worry about running out of charge on a portable charger, this is the one to buy! Charging ability: With 20,000mAh, I get multiple full phone charges. For reference, I own a Samsung Galaxy S22 Ultra, and I can recharge my phone around 2-3 times from empty to full again with this charger, and possibly even more at times. I love how this charger supports fast charging for my phone because other portable chargers I've used in the past just charge my phone too slowly for me if I'm on the go. I also like the digital display as it makes it easy to know how much charge you have left on the device. Size: Another strong point about this device is its size. The size of this charger is the perfect size as it's not too big or bulky and roughly around the same size as my phone, just a bit taller in height. For the amount of power you are getting with this charger, I would expect it to be bigger, but it's still in a perfectly compact size that's easy enough to throw into a backpack. It might be a bit big for your pockets to carry, but it's definitely possible, as I've done it before, but it's not the comfiest, so I would suggest throwing it into a separate bag on the go instead. Another thing too is this thing is durable, I've dropped it and accidentally stepped on it a few times on accident and it's still for the most part intact and perfectly fine. Flashlight feature: I haven't used this feature much as I mainly use the device for charging, but it's definitely a nice option to have on the go and is really easy to use as well.

Works great, will charge my phone five or six times on one charge.

I never ever write reviews. I felt compelled to write a review for this product because it truly is that good. There was no incentive for this review, and I am in no way affiliated with this company. I do happen to take think this is the best 20,000mAh power bank on the market by far, and I was surprised because I thought I was stepping down in quality since the price was lower than usual. I had been buying Anker in the past, but their prices were higher than ever, so I was looking for a cheaper bank that still did what I wanted, and oh boy did it. I love this little device. I keep it in my backpack always, and it never seems to discharge without me actually using it. It’ll stay at 100%, I think that’s because of the modern type of battery they used which at the time I bought this was pretty new and only in a handful of power banks, so I thought they were lying when I saw it in this one for such a low price. Best power bank I’ve ever had, hands down, and I got it because it was far cheaper than the others at the time I bought it. It charges devices faster than any power bank in similar price range. It says it is 20,000mAh capacity, but it lasts far longer than any other battery pack claiming the same capacity. It has a convenience flashlight that I’ve actually used a handful of times in a pinch. It can charge 3 devices at once, has two extremely fast USB type A ports, and even has a USB type C port that is still a fast charger compared to other battery packs, but is slower than the type A which are lightning fast. It doesn’t get that hot when charging compared to other high end battery packs. One unique feature is the USB-C that serves as input doubles as an output. This is super cool because every other charger that I could find at the time of purchase had an input which couldn’t output. It was purely an input. This power bank is also incredibly light for 20,000mAh, and fits in my pocket with my phone without being incredibly burdensome. I think it’s probably half the size and maybe a quarter to a third the weight of my first charger (from Anker many many years ago) which was supposed to be 26,800mAh, but didn’t last as long as this one. Not sure if this company replaces broken chargers but I would bet they do because it says they have a 3 year warranty. Anker will replace broken power banks basically with no questions asked within 18 months of purchase, and I had to use that one time, so if they replace them without making you prove you didn’t break it or whatever then this company has twice the warranty (at less than half the price at the time I purchased). I think that is why the battery bank is such high quality. They don’t want it breaking within 3 years, so they use the highest quality materials. It really is nice in the hand and you can tell it is high quality. Mine is barely scratched after being used and abused almost daily for so long now. I’ve had this product for at least a year now, I think longer, and I recently went to Hawaii and didn’t need to charge my Bose portable speaker or iPhone 12 Pro Max until the end of day 5 of the trip, and I used both frequently each day. The portable charger charged my phone like 4 times over as well as my speaker. Overall this is the best portable charger in this capacity range hands down, and I am a portable charger fanatic and have owned many mostly Anker power banks over the years. Definitely get this charger as long as the price is still low and it’s available!

Purchased this power bank (INIU B1-B5 20000mAh) due to seeing YouTube review of several PBs where reviewer took apart several PBs and showed that the batteries used in the PBs were actually rated far below the claimed capacities. INIU was one of few brands whose battery (in this case 20000mAh) label actually matched the advertised capacity. IOW, some brands that advertised 20000mAh capacity actually had batteries in them that were listed at 10000mAh etc. I used an old iPhone 7plus (with a 2900mAh battery) to charge from 50% back to 100% (or 1450mAh). The INIU B1-B5 went from 100% down to 86% (test was done three times with same results). Due to voltage conversion from the 3.7v battery to 5v USB output, the effective total capacity of the PB should be around (3.7/5)*20000 or 14800mAh. Since 14% of the PB was used, this amounts to 2072mAh. Since 2072 mAh of output from the PB was used to effectively charge 1450mAh of the phone battery, this amounts to a 70% charging efficiency. This means that I would get around 3.57 charges of my old iPhone 7plus out of this 20000mAh battery power bank. IIRC, I read somewhere that the expected efficiency of power banks should average around 80-85% due to conversion losses. At 70% loss, this power bank does not seem to be every efficient (although in my test, this may be due in part to the fact that the phone used is an old one). The positives: This power bank did charge my phone from 50% to 100 % in 1hr 57min which is pretty good given the iPhone 7plus is not fast charge (PD) capable. In my short time with the INIU, it seems to hold a charge well, did not heat up and did not heat up the phone while charging. It was also consistent in the charge times. The neutrals: While the thickness and weight of the unit does not lend itself to carry in a pocket while charging your phone (see specs on Amazon page), it is compact enough to easily carry in your carry on luggage as at a rated 74Wh it is well below the 100Wh limit imposed by the FAA and airlines. While it did underperform regarding capacity vs what it is advertised to be able to do, it was not as bad as some of the other power banks I tested, and came the closest to the advertised capacity as compared to some of the others I tested. The negatives: All power banks seem to use misleading specs in their advertising. Just because the power bank has a “20000mah” battery, does not mean that it will charge a device with, say a 4000mAh battery 5 times. Far from this due to various conversion losses etc. Also, I assume that these conversion losses can vary quite a bit between various power banks. While this power bank seems to not be very efficient, it met my needs (especially for the price). Unknowns: I have only just gotten this power bank and have only used it 4 times to charge my phone from 50% back to 100%. I anticipate using it primarily for travel. I have read reviews warning of battery pack swelling and failure etc over time. I have not had any problems with it so far but have used it for less than one week. So time will tell. In the meantime, my spouse also bought one as well so we will see.

It’s strong, fast charging and has overgrown many other brands that I bought have stopped working. I’ll recommend it for those want reliable chargers.

Works so great I bought 2 of them. Have them for years and still functioning properly

This INIU 20,000mAh portable charger has been an absolute powerhouse for extended trips and heavy device usage, providing enough capacity to charge my phone 4-5 times and still have juice left for my tablet or other devices. The 22.5W fast charging really makes a difference compared to slower power banks - my phone charges almost as quickly as it would from a wall outlet, which is incredibly convenient when you're on the go. I appreciate the clear digital display that shows exact battery percentage rather than vague LED indicators, making it easy to plan when I need to recharge the power bank itself. The build quality feels solid and premium, and despite the high capacity, it's still reasonably portable though definitely heavier than smaller power banks. While it's pricier than basic models and takes up more space in your bag, the combination of massive capacity, fast charging speeds, and reliable performance makes it perfect for travelers, outdoor enthusiasts, or anyone who needs serious backup power throughout long days.

I waited to write this review, as I wanted to have an opportunity to use this power bank and REALLY test it out. I did so, but once wasn't just enough. I am showing my age, but I had some of those batter size power banks that just don't charge much at all. Useless basically!! This bad boy takes ALL NIGHT to charge the first time. I was thinking what in the world? But it this compact little power bank really soaked up all that juice! It came in handy at a vendor show with my daughter when she forgot to plug in her phone the night before, so she needed a boost for check out. Pregnancy fog is real fellas! But my favorite use was when a doctor friend of mine needed to borrow it after a long day of tailgating and football game. We have all been there with an older phone. You aren't using it that much, and you think you're fine. But that phone is draining on you like no tomorrow. By end of the game he was desperate. He was dead in the water and no charger! Time to leave the party? Not with Iniu to the rescue! He was impressed within 30 minutes he was up to over 30%, while using his phone. Said he had never seen anything like it. He was sure to get the brand so he could have one too! Power banks come in black with a carrying case as well, very discreet and out of the way. Kept a doctor from having to leave the after party, so he was jazzed! Who knows what this little black box could do for you! 5 stars all the way!

I repurchased this portable charger as I lost my original one but I had to get another one; this charger is an absolute must! I had my original charger for a year and a half. It’s perfect for travel and everyday use; it got me through my trip to Japan and daily use for over a year and was still working beyond expectations. It’s reliable and durable and high quality. Its a bit heavy but I appreciate that it comes is a protective sleeve which had saved my charger from way too many drops. It charges my iPhone 13 Pro quickly and efficiently. When I first got it, it held a lot of charge and could get quite a few full charges and of course I did notice a slight decrease with charging capacity but no where near the decline that I’ve gotten with other portable chargers (could charge my phone 3 times from 10%-100% with charge left over, one year on could charge it 2.75 times). May not be the most impressive detail, but I like the fact it that it has passthrough charging (it charges my devices while it is also changing).

After doing a lot of research and reading tons of reviews, I finally decided to purchase this portable charger and I’m so glad I did! It arrived quickly and included instructions that were clear and easy to follow, so getting it set up and ready to use was a breeze. The charger itself feels high quality and durable, and clearly well-made. It’s also incredibly compact and lightweight, which makes it perfect for travel, commuting, or just tossing in a bag for everyday use. Performance-wise, it does exactly what it promises. It charges my S22 Ultra quickly and efficiently, and I’ve been impressed with how many full charges I can get before needing to recharge the unit itself. It’s definitely helped me out in situations where an outlet wasn’t available, and I no longer worry about my phone dying when I’m out and about. Overall, this portable charger has exceeded my expectations. I love how reliable and convenient it is. Highly recommend it to anyone looking for a dependable backup power source!

Puntos positivos: - Puede cargar hasta 4 veces un celular (probado con un Galaxy S24+). - Tiene una linterna (que se enciende pulsando dos veces el botón de encendido) para casos de emergencia. - La pantalla con el porcentaje de batería es muy útil y fácil de entender. Puntos negativos: - Para ciertas personas puede ser un poco pesada, pero mientras la lleves en una mochila o bolso, no hay problema. - Se tarda de 7 a 9 horas en cargar (probado con un cargador de 30W), así que, hay que tener paciencia y cargarla con anticipación en caso de que se vaya a usar (aunque se entiende que por la gran capacidad se tarde ese tiempo). En general, una muy buena compra y gran acompañante para días donde andes en cualquier lugar que no tenga un enchufe cerca.

Excellent product, a little heavy but works fantastic for IPads, phone etc.

Execelente power bank, carga de 3 a 4 veces tu celular. Lo único malo es el peso, que es muy ancho y se tarda en cargarse. Pero cuando cargas tu cel es muy rápido