GreenTekMobile Premium Qualcomm Quick Charge 3.0 Bundle: 10000mAh QC Aluminum Exterior Power Bank with Type-C + QC Wall & Car Chargers + QC Cables + Type-C Converters: LightningPoweraid (Black)

Thus far, and I haven't had to use it a lot, it has mostly done its job. I'm using this with a Galaxy S8. It's nice to know that I have emergency power in case I'm not near an outlet for very long periods at a time. Frankly, the S8 currently (no pun intended) does a good job of holding its charge, but we'll see what happens after a while. I bought this because of the added feature of being able to charge and/or use the phone while the Quick Charger unit is also charging.In any case, the one small blip with this is that I tried charging my S8 from about 30%. I got a fairly quick charge, but the unit stopped charging when it reached 99%. Using a cord straight from the wall, my phone regularly charges to 100%. Any reason it would stop at 99%?

After getting the OnePlus 3T last January, I thought I would never have a need for a portable battery, thanks to the Dash Charging function on the phone. I'd seen videos by tech YouTubers talking about different portable batteries, from smaller ones to larger ones which double as strips and can be used as an outlet for laptops. All of them seemed a little bulky, even if they carried enough battery for three charges of my phone. But at the start of the school year, I saw a friend of mine using this battery. While my phone has the Dash Charging function, I am a frequent flier, and most airplanes (and even some airports) don't have an outlet, leading me to ration out my battery for the duration of my trips. Usually I end with about 10% or less. This also leads me to have battery-saving habits while on campus, such as using the lowest screen darkness I can, using airplane mode when I know I don't need my phone, etc. Which leads me to...My main reasons for buying this battery were (in order):1. Extending the battery life of my phone while I travel2. The cool accessories (I am a child always looking for new toys)3. 20% because my friend highly recommended the product (I'm easily persuaded)And I will say this product has exceeded all expectations. The battery is super light (no heavier than another phone) and comes with a ton of accessories, which are super convenient. And, the fact it comes with quick charging is a bonus, although it's not compatible with my phone (I think; pretty sure it can't). Another bonus to getting this battery isn't even for me, but for my friends who are team Apple. Not disrespecting their products, but Apple phones (in my experience) struggled to last in terms of battery life, especially after about a year and a half. The batteries can have some serious issues. But with this battery always in my backpack, I can help out a lot of my friends make it through a class or trip and STILL have enough juice in the battery to charge my own phone. And, if I'm ever making plans to be out studying for long periods of time, I don't have to worry about bringing my charger and finding an outlet, as the battery is plenty of power to last the night.TL;DRBought the battery because I thought it would be useful for traveling, but now am super blessed by this product as it's incredibly handy for both myself and friends and great for those long nights without a charger.HIGHLY RECOMMEND TO EVERYONE LOOKING INTO A BATTERY!! YOU WILL NOT REGRET IT!!

I have been using this for about a week and am happy to say that this is one of the nicest batteries I have ever owned.The packaging itself is really sleek and well protected, coming with all the advertised parts neatly wrapped and securely fit. Everything in the kit just feels nice - the wall charger, adapters, cables, and the car charger all feel robust and fall into that nice, clean aesthetic. To my surprise, even the travel pouch felt high quality and housed the battery perfectly.As for the battery, its design already makes it nicer than anything else I've ever owned. First off, it basically looks like an IPhone. For reference, the battery's length/width runs less than my IPhone 7+ while slightly thicker and slightly heavier - pretty incredible. It's easy to use - press the power button once to turn on, press twice to turn off. There is a simple LED light display on the side which indicates the battery power level, and once fully charged it will shut off automatically.The best thing about this battery though is that it charges FAST. There are three ports on the battery, 1 micro USB, 1 USB Type-C, and 1 USB A port (traditional USB.) I believe the micro USB and USB A support Quick Charge 3.0. I tested the Quick Charge 3.0 USB port with my Plus and it went from 35% to 80% in a little under 40 minutes. I would like to try this with my dad's Galaxy S6 just to see how it compares as I'm sure the charge time will vary between devices. I was only able to test the car charger for a short amount of time, but it went went from 45% to 58% in around 15 minutes. The car charger supports QC 3.0 as well so definitely excited to be able to try that for an extended amount of time in the future. Haven't been able to fully charge the battery itself yet, but the product description says 3 hours to a full charge which is pretty quick as well.For how quickly it charges and the number of accessories you get with the entire kit, this is a solid buy. It looks good, charges fast, and is versatile. Considering the wall charger brick, cables, and adapters run you a few dollars each, the value is really there. I was looking to buy a battery for the longest time and am so glad I got this one. Will definitely be recommending to my friends.