Ive heard these items are excellent so I bought this one to use as a backup battery for a new iPhone I purchased. With a holiday looming I wanted to make sure family could get hold of me anytime anywhere without worrying about battery charge ...So far it has been an excellent piece of kit, charged fully on Sunday and no loss of charge by the time I needed to use it on Friday.. it was a little slow in charging the phone compared to plugging it in work the apple lead... but it charged my Bluetooth headset in a very short time. It is also a little heavier than I expected it to be,which is a good thing,it makes it feel solid and well made.which it is. Overall I would recommend this product to anyone who is worried about batteries not lasting the day as this is just excellent as a backup.
would def recommend