I don't care how portable it is, I want to know if it charges a smartphone (GS3) from 0% to 100% and how long it takes to charge the battery to use?
1053429
My daughter uses this to boost her iPhone daily. It took it 4 times from 0 to 100 as fast as a USB into computer charger. My impressions is it as fast as a wall charger. After 4th time this unit had to be recharged.
1053430
I don't know how long it takes to charge the battery, as he started charging it at work and finished charging it at home after, but I do know with the portable battery fully charged it only charged his iPhone 4S to 86%. I don't know if that helps, but we have only ever owned iPhones and a blackberry.
852095
There's no single answer. It depends on the phone, speed & distance you're traveling. With the phone on Galaxy S3, it charged about 20% in one hour.
165505
I am not really sure, i have a total of 3 batteries, so when/if one goes dead, i just pop it in the charger and it stays till i need it again. My android phone takes a while to charge, even on its own w/o any apps running. My guess it takes about 3 hours from completely dead to charge.
390914
Yes, it will charge it completely. It uses the micro usb to attach to the phone.
2125866
I dont know. It didnt work at all. I tried it charging but it doesn't charge at all. I kept it on charging for 3 hours, 6 hours and 10 hours , entire day, nothing happened. I was going to use this to charge my S3 phone.
661738
It takes a micro USB charger to recharge the battery... just about any Android smartphone charger will work.
140492
Well its cordless so my best guess is yes. It requires a cord/outlet with a USB adapter port to charge it. It has a small cord built in with a USB end on one side. The other side has a cord with a micro-USB end for your smartphone/device plus 2 built in USB ports for charging another smartphone (1.0) and a tablet (2.0). Hope this helps!
170587
Just a further follow-up, it charged my iPhone from approx.15% to over 90% in about an hour. Hope this info is helpful.
920400
I'm not sure. I used to charge a smartphone with this device after having it stored a month or more, and the smartphone charged up about 70%.
284003
If it's not it is really close. When I used mine my phone battery was almost dead and it gave me almost 80% battery in less than an hour. I just traded out my Xperia but still have the external battery. Will Sell cheap.
1406233
Yes, it works great for me. Plug it in, and it charges the unit as well as the battery inserted. On a recent trip from east coast to west coast, when my battery became low on my SGS3, I just inserted the battery I had charged the night prior to departure, was immediately at 100%, and still had the full charge in the EZO charger if needed. Top that, iphone, with your unremoveable battery!
1340685
It charges in about 2 hours using the 750mA charger that came with my Samsung Galaxy S3 charger. Hope this helps.
603401
It takes 2 hrs 45 mins to fully charge my S3 (0% to 100%) with a 3 ft cable. If you use a longer cable, it might take longer. In general, device will pull power at a rate of what it is capable of. Higher amp will not necessary charge your device faster. I believe S series cell phone only requires less than 1 amp for charging. This charger will be more than enough for your cell phone. This charger is good for device that requires 2 amp+ of power source. Also be aware of specs of the charger. A lot of dual port charger claims to support 2+ amp. However, the total is split between the 2 ports (ie each port can only supply 1 amp power source). One more thing, Apple charger (even though it supports 2.1 amp) will not work with Android devices. It will work. However, it will be painfully slow. You might get 1% per hour. Hope this helps.
1563045
I would measure it in percent, it gives 80 percent of a full charge if you dont use the phone at all whole charging it. So maybe 3.5 hours of use...?
742325
Yes. I was just charging the power bank with a USB cord from my wall outlet and then another mini USB connected from the power bank to my Galaxy S3. It worked great. I think the charging time is slower but I did this overnight while I was sleeping so I'm not certain. By the morning both the power bank and my phone were fully charged.
1840388
I don't know for sure how long it holds a charge but I do know that I had it in my pack for about a month and it still appeared to have a full charge. It will charge any phone and I believe any pad. It charged my mini galaxy about 5 times before needing to be recharged.
1109023
I've charged it for about two hrs but the most it charges my phone is about 50%. I guess it's useful for when you're on the road and you have no battery at all