Quality construction, charges mobile phones quickly, takes 8-10 hours to charge itself. It is heavy to carry around all the time, but it is perfect for camping.

I have it for only three days but I have already used it 3-4 times to charge my phone. It seems to be of good quality construction, it is not too heavy and you won't feel it in a bag. However, it doesn't fit in a pocket. It charges the phone as fast as from the socket. The power bank itself will need several hours to charge, probably the whole day if it is completely empty. Overall, it is very reliable and worth its money. For every charge of a Samsung phone, it consumes about 20% of its capacity, so it provides 5 full charges.

Quite large in size. Perfect charging for mobile phones and tablets. Charges a mobile phone up to 5 times. So, in order to charge the power bank as well, it takes 5 times longer than charging a mobile phone (about 8 hours).