Portable Charger Built in Two Cables Mini Power Bank Outdoors 9000mAh Ultra Slim High- Speed Charging External Battery Charger 3 Output & Dual Input with LCD Display for Android, iPhone, iPad(2.0) , Black (DS01)

UPDATE 7/12/20: Yep, still my favorite portable battery. My SE took a lot less energy to charge than my current iPhone 8, but the battery still gets the job done using no more than 20% of its power, usually less if you’re not using your phone at the same time. Just dropping in a year later to let y’all know it’s lasted this long!UPDATE 9/13/19: Okay, this battery surpasses all others I have owned because it lasts freakishly long. It fully charges my iPhone SE using ONLY TEN PERCENT of its power (or less!) Every time. Bigger phones take a bit more juice but it never uses more than 15% at a time to charge them. I hardly ever have to recharge it!UPDATE 8/10/22: Wow it's been 4 years and this battery still works as well as it did on its first day. I'm impressed that it can charge my iPhone 12 mini quickly just like the primitive first gen SE. I seriously don't think battery wear applies to this powerhouse.----ORIGINAL REVIEW: I still say that the best and most handy battery of all hails from iWalk (the geniuses who managed to fit three different charging cables in one battery AND with the charger built in) but this is a solid second best. I’m not a fan of how elusive the advertising was about the USB C adaptor; it’s included but has no storage slot on the external battery in case you’re wondering. Even so, this is the most powerful battery you’ll find for a size this small. I’m generally picky about these things and give it a thumbs up. It charges a pretty decent speed I would say and is incredibly light.

I have had my fair share of powerbanks. My first powerbank was one of those lipstick kinds with a very small capacity. Those ended up running out far too fast for my usage. The second kind I bought was an extremely large capacity bank over 20,000mAh. The powerbank lasted long but it was HUGE and felt like I was carrying a second/third phone due to how big, heavy and thick it was.This powerbank has good capacity that'll last me through the day or two and it's light and TINY. When I say tiny, I mean it is VERY TINY. It's a fraction of the size of my 20000mAh. I compared it to a switch joy con (if any of you have one of those, you'll know how puny joy cons are). It's hardly bigger than a single joy con. This is probably going to be my daily powerbank from now on. The lightness and tiny form factor make this a perfect daily bank. Also, it has a mini usb and lightning cable built into the powerbank. This is extremely important for me because I hate bringing my cables around with my powerbanks, and having loose cables in a bag causes the cables to break over time. Having it built into the powerbank reduces that issue. I'm really glad I found something of this size, it's really convenient.

Ordered 2 of these, one for me and one for my partner. Mine worked well. The other one, however, did not hold it's charge. We would plug the phone into the charger and within minutes it's charge was gone! I ordered these to travel through Europe. I am happy that one of them worked as it was a great little gadget to have along on day trips. Charged it in full each night and had it for the next day. Rarely did I use all of the charge in one day for both of our phones. My only disappointment is that by the time I returned form Europe it was past the time that I could return it and get a refund.

I've had many backup batteries and chargers over the years and I was looking to get a second one that I loved but was sold out. I came across this one in my search and initially I was skeptical because it looked slightly cheap. It's also hard to find the kind like this with the cords build right in so you don't need to carry extra accessories. The minute I received and opened this charger I was blown away by the quality and weight of it. It's nice and heavy, the case is a solid aluminum or metal of some kind, and the cables are made well and pop out easily for use. I can't believe how long it holds a charge as well ... I've had it for two months and haven't charged it yet and it's still at 70% power. This thing is a beast for it's size and I recommend it to anyone I know (especially those who work in tech, carry multiple devices, or travel often).

I don't know about the phrase "ultra slim". In my opinion this external charger is NOT ultra slim at all. So beware. It is a bit more rounded that the initial picture makes it out to be. However, it does an excellent job providing a long lasting charge to both my ipod touch and to my Android phone. I also love the numerical gauge (which goes from 1-100%) that tells you the percentage of battery power your charger has left before, during or after you charge a device. Additionally, despite its "rounded" shape this device will conveniently fit inside of your pants pocket without a problem. Its a very good buy and both the apple (lightening) and Android cable are physically attached to this device making charging a snap! Excellent purchase as an external charger.

I specifically bought this one because of the built in cord, so I wouldn't have to carry around an additional cord to charge my phone. After 5 months, the iPhone cord broke on the device, sadly. The bank itself still works, it's a really great charger, it charges my phone fast and holds the battery for a long time. Since it broke, I have to bring an additional cable with it to charge my phone, which is unfortunate, but it is still a good charger.Update: the whole thing stopped working completely. It won't charge my phone at all. Either the cable is broken or the charger is, but now I don't have a portable charger. ☹