USB C Headphone Jack Adapter. Aimpire Type C to 3.5mm Female Aux Audio Cable for Google Pixel 2 3 XL Samsung Essential Huawei Moto OnePlus HTC Xiaomi etc

I bought this to fuel my and my boyfriend's recent addiction to Pokemon GO because we both have Galaxy phones and the description claimed the battery should provide several charges for us. It was on sale for about $20 at the time of purchase and let me say this was an incredible find. I've never owned a 20000mah battery before so I was a bit surprised at its size, but its not terribly difficult to manage and my boyfriend said he actually expected it to be larger. I don't have the box in front of me anymore because I went out of town since buying it but I remember the exact dimensions were all in exact 10s of millimeters so this isnt very exact but I'd say its about 7 inches longways, 3 inches shortways, and less than 1 inch deep.I usually keep the battery in my backpack and use my cell phone's charging cable (Galaxy S6) which is just about the perfect length for simultaneously using your device and charging while on the go. The cable that came with it is very short: about 10", maybe a bit less. It works, but I personally dont like holding both the battery and my device in my hand at the same time so I avoid using it unless I don't need my phone at that moment and can afford to put it away.It has two outputs, one 2.1A and one 1A, and the input is 2A. At first I was annoyed that one of the ports does not give as much juice but then I realized that it's helpful for my devices that are not fast-charge compatible, like my Polar Loop watch (which does occasionally die while I am out).I would NOT suggest charging this while using it to charge another device!! It says specifically in the information that is included with the device to avoid doing this because it can damage the battery and prevent it from working properly. If you need further proof, I did see someone else who was answering this question on here and they said that theirs did malfunction after doing this. However, several others also said that they do that, with no specific mention of issues or a lack thereof.Unfortunately, while you CAN charge two devices at once, I will now try to avoid this. I tried it for the first time yesterday and the battery began to drop FAST. It seemed also that the devices being charged were not charging up at the rate they would have if they were charging alone. When using the 2A output i usually get around 3-4% of my phone per 1% of the power bank. it seemed more like a 1-for-1 ratio when two phones were plugged in, but I'll update if I try this again with different results because admittedly I wasn't paying extremely close attention to exact numbers during this trial.It was at 63% when I opened the box so i didn't even have to charge it up before playing with it. I love the slightly rubbery feeling finish. A single tap of the power button illuminates the screen blue to show the current percentage of the bank, and if you press and hold it for three seconds then a little LED torch located at the tops between the output ports turns on. the first thing I did was leave this on for a few minutes to see if it drained to battery at all, it did not lower it. Just hold the button for 3 more seconds to turn it off.The screen also features a display showing the current output to let you know if you are using the 2A or 1A output ports, which I think is super handy in case you forget which side is which. It also says "IN" or "OUT" on top of the screen, depending on which is happening at the moment.All in all its a handy little charger, I only have to charge it every couple of days unless I'm using it a LOT. I'll do more exact tests and time the charge up and down and update here as I gain new information. The only thing holding me back from 5 stars right now is the fact that the battery drops so drastically when two devices are plugged in at the same time.

Good product.

I haven't actually measured it, but this might actually have the 20800mAh capacity that it claims. My girlfriend and I bought this for our trip to Disney, which meant long days and heavy phone use (pro tip: reading the Wikipedia article "Incidents at Walt Disney World," out loud, is a great way to pass time waiting in lines there). She has an iPhone and I have an S5, both of which we were able to keep fully charged all day with this thing (and I don't think I saw it ever drop below 70% charge). Also, this thing charges phones fast -- at least as fast as a standard wall charger (it seems faster to me, but I have not measured to confirm this). The build quality is nice with the whole device covered with a rubberized finish and it feels like it could withstand quite a bit of abuse (again, no testing has been done to confirm this). The built-in flashlight is handy but unnecessary. There doesn't seem to be any way to non-destructively open the device, though, so if it breaks it probably can't be fixed. This would bother me if it actually cost its "list price" of $99.99, but at its actual price I'm not going to lose much sleep over it.Note also that this is bigger and heavier than you might expect. It weighs about a pound and is about as big as two current-generation smartphones stacked on top of each other. So don't wear your skinny jeans or whatnot if you have to keep this in your pocket.The only real issue I've found is that it can sometimes not detect a device plugged into it depending on the order of plugging things in, port you are using. and whether it was "on" before or after the device to charge was connected. This has only happened a couple of times (i.e. I'm not sure what specific conditions trigger the issue) and fixing it is simply a matter of unplugging and replugging.

Sentey is onto something... They delivery top notch power stuff for not a lot of money... I usually buy their 725W Power Supplies for building gaming PCs for people, so when Pokemon Go came out, I bought TWO of these so I could game all day on my Samsung Note 5... well, one was enough... Starting with a full charge on my Samsung Note 5, I was able to play Pokemon Go for 10 consecutive hours (I'm a Twitch Streamer), and I still had 80% battery left!! I only streamed 3 hours of the Pokemon Hunting, but after that, I was curious to see how long the battery would last. I went to a local resort that had a TON of Pokestops and got there at about 8PM... I wound up at a park at about 2:15AM and continued playing (there were PLENTY of other Pokemon Trainers in the area)... about 5 hours later, the sun was up, the early morning joggers were running around the park's lake, and I was ready to go HOME. This battery still had a charge on it, too (about 9%), and my Note 5 had an 87% charge on it (using the official Samsung Note 5 cable that came with the phone). I wound up selling my other one to my friend, since I definitely didn't want to play Pokemon Go for 24 hours straight, but if I needed to, that would've been the way to do it. The included screen is fantastic for indicating the charge left and the LED flashlight comes in handy if it's dark and you don't want to use your phone's flashlight (or if you don't have one). Not sure why this has been unavailable for so long, but if it's available to purchase, GET IT!!!!! Sentey's power supplies are also top notch quality, this battery is no exception! Thanks Sentey!!