? size: 11.8x6.5x0.8 cm ? weight: 100 grams ? number of ports: 2 output, 1 input ? flashlight: no ? pass through charging: NO (i.e. the battery can charge while being charged itself) What is in the Box: ? Lenovo Power Bank ? 1 charging cable ? User Manuals & warranty Note: This does not come with a wall charging unit This looks really nice. The steel finish on the surface makes it look sleek and stylish. Also the black lining all around the sides gives it a very good look. There are 4 LED to indicate the amount of charge left in the Power Bank and these are nice and bright. When you have to charge a phone, on these backup, all you need to do is connect the cable and the phone starts to charge. There is no extra button to click. Previously I had a power bank with a flashlight and the issue was when it was in the back, the flashlight would turn ON and drain the battery and make it not usable when it is most needed. For that reason I decided to pick up a Power Bank with no flashlight and I would recommend that should be the selection model due to the issue mentioned. The external battery performed well charging my devices. I have tried to charge ? Nexus 4 ? Nexus 5 ? Samsung Tab It performed really well and charged all these devices. This power Bank has 2 output ports, both of them deliver 5 Amp output while one is at 1v and the other is at 2v. I used the 2v to charge the tab and also when you use the 2v to charge your phone, it typically gets charged faster. I tested to see if the battery supports pass-through charging (i.e. whether the battery can charge mobile devices while it is being charged). This battery does NOT supports charge through charging. It does not charge while being charged. Finally, I checked if the cable that came with the battery is a charging cable (i.e. capable of charging at full AC rate) or a data cable (charging the battery at USB rate). Tried to charge the battery with that and it did get charged and so it is a charging cable