This power bank is unprecedentedly equipped with dual input ports which have total input up to 4A so that it can be filled up within 6 hours. Four USB ports with a total 4.8A output make it possible to charge four devices simultaneously at full speed.
Exclusive Smart Technology
This 20000 mAh power bank can automatically detect the input of devices connected and therefore output the most appropriate current due to the Smart technology applied in it, making the charging process safer and faster.
All-around security protection effectively prevents your devices from overcharging, over-current and short-circuits.
This is a great product, based on initial tests. It seems to be solidly designed and constructed. I charged 2 cell phones with it, and it still indicates almost a full charge remaining, so I guess it will charge a cell phone about 10 times on one charge, as advertised. It can charge 4 things simultaneously, but only comes with 2 cables.
by Adam Coulthard18/07/2017
One of the best portable battery banks you can buy!
One charge lasts forever!!
Great charger for use in a remote area. Fast and can charge two phones at same time! Good value.
by gerald esquen18/07/2017
works very good & So far I used it a few times & still does not need to recharge,
Awesome one Charge Lasts forever and will charge a phone ...
by Jeffrey R.17/07/2017
Lasts forever and will charge a phone fast. Great item
Pretty good! But missleading mAh
Its not actually 20000mAh if you do the calculations at it 5V output.
by Amazon Customer16/07/2017
I love this battery
I love this battery. More than once I have got to be the hero when on family trips and peoples phones start to die - I just pull out this battery and let people plug in. I used it last year all over Ireland and Scotland - everyone was taking lots of pictures and halfway through our tours our phones started to whither. This will take 4 usb items at once, and I have never used it up. On a recent road trip, I charged it in my truck during the day, and then used it in my hotel at night - no looking for outlets. I also have a solar charger that I can plug it into to charge, and then transfer the power from the EasyAcc to my flashlight, AA battery charger, Exogear bluetooth speaker, iphone, etc... The built-in flashlight is handy, but I rarely need to use it.
It is a bit heavy, but its dimensions allow it to fit in most pockets (although your pants may sag a bit).
by Kindle Fire15/07/2017
Good quality for good money.
by Valeska Gonzalez15/07/2017
Cannot speak highly enough of this product! As a mother of six, I am always looking for a power source for a device. I purchased my first power bank for my oldest son for Christmas. After listening to him rave about how useful it was I purchased myself one. It seems to charge endlessly and never itself run out of charge. The only down side, if I had to name one, is that it's a bit heavy. It's well worth it though, we have been stuck en route to NY from TX for 2 days, so we've had a huge need for charge the last 48 hours. Couldn't have made it sanely without!