INIU 20000mAh Portable Charger, Compact 22.5W Fast Charging USBC Power Bank

My sister recommended this INIU portable charger for a concert that we were going to attend at the Sphere in Vegas :) ! And I'm really glad she did :D ! This handy and compact portable charger fit perfect in the 6" x 6" x 2" bag that the Sphere strictly enforced. In other words, we could not bring any huge power banks or chargers, which is why we had to look for an alternative. My sister same across this one, and this fantastic charger worked perfectly in providing plenty of charge to our phones during the entire duration of the concert :D ! We would highly recommend this to anyone who needs a compact charger for a venue that is absolutely strict about what size dimensions of a bag you can bring in. We weren't picky about the color, and settled with black since black is pretty universal. This charger is compatible with both her Samsung S22 and my iPhone XR. So we would imagine that it's pretty versatile and universal for all kinds of phone manufacturers and models. It is very sturdy and durable. But with that being said, we would still recommend not dropping this, if possible! You never know how well any kind of portable charger can truly hold up once it has been dropped!

This works sooo well! I like that it shows how charged it is, and the battery it holds really lasts quite a bit--it charges at least a handful of full phone batteries. I bring one and charge it at work, so I always have a full extra battery on me in the subway, or when traveling :DNot cheap, but I'd def recommend it!

Recently on an Alaskan cruise, while eating lunch on shore, my grandson's phone ran out of power. He had left his backup battery pack on the ship. I let him use mine. He was amazed that this little unit charged his iphone while we ate lunch. It went through TSA without a hitch in my backpack. It is the best portable battery backup I have owned or used. It has everything you need, charging cord, wrist cord, charging speed & lots of power by my guess for 4 or 5 recharges before recharging the battery pack. It works with any phone that uses a USB-C cable. It is small & lightweight.From now on, I won't go anywhere without it. I highly recommend this battery backup.

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.

Charged my Galaxy 25 ultra from 50% to 100% in 35 minutes and used 15% of the battery. I like that the charging cable clicks in as the strap. Great size. Heavier than I would prefer for hiking (12 ounces) but for the price and amount of charges I will get out of it, I cant complain. Could pay triple and get an ultralight 20,000 but I'm not going to do that, so I will be very happy with this one.

I LOVE THIS! Hands down my best purchase the last few months.I initially bought it for a trip out of the country early part of August, but I've been using it nonstop. It's extremely versatile not just on the road or travel, but at home when I'm in the bed not wanting to be bothered or scared of knocking the cord out of the outlet. I defer to this so that I'm not messing with a bunch of cords. I can easily plug it in and not have to worry. It's great on battery life too! I typically just charge my iphones and I have tried to charge my computer.The only drawback, which I'll have to find a more compatible device, is that it I can use it for my computer, but it takes more energy to juice it up.I also noticed a tad bit of fraying on the rope that connects to the handle. It was just a bit, but I'm going to monitor it over the next few weeks.Other than that - no issue at all with it overheating.

These do charge slow however they charge your phone and other devices super fast and hold a good amount of power. I highly recommend them. I have two and will buy again.

It works great. After I charged it to 100% I was able to fully charge my iphone twice and it is still at 50%. The size is perfect, no too huge, it has some weight to it, but not bad. I like that I can take it on airplanes, some others you cannot. Like the advertisement states, it takes about 5 to 6 hours to fully charge, that is common to chargers who can charge your phone several times. Love it!

Dura 4 cargas para mi samsung s24 ultra, es excelente para los que usamos mucho el teléfono, es un poco pesada, pero mejor cargarla, que no encontrar adonde conectar el cargador

Batterie achetée le 1er Février 2025.Ma batterie a explosé cette nuit vendredi 22 Août à la tête de mon lit.Je l’avais débranché vers 23h, elle était chargée à 90%, elle n’est jamais tombée ni choquée.ET ELLE A EXPLOSÉ à 6h ce matin sans aucune raison alors qu’elle n’était pas en charge.La fumée et le feux était incontrôlable.Fort heureusement la fenêtre de la chambre était ouverte et jai pu la jeter hors de la pièce.En 3 secondes beaucoup de dégâts.Jamais plus cette batterie.Tres dangereuxCette fois j’espère que ce commentaire apparaîtra…Je signale d’ailleurs ne pas avoir été contacté ni pour la garantie ni pour des explications, incroyable.Olivier

excelente, la usé para un viaje de 4 días y no la cargué ni una sola vez, me duró todo el viaje

Parfait, 10 journées d'utilisation en vacances et il fait très bien son job👍🏼agréablement surprise par : rapidité de charge, sa taille,ses coloris, qualité du produit👎🏼 Il est un peu lourd ⚖️

Tacka