The battery is very small, fits in any pocket and looks good and high quality. As an accessory, you get the same all modern with that one infected with ease on the charger, keep them well on the connecting piece. He comes right to load, so you can equal assail and invite his cell phone. In my Lumia 820, the battery lasts loosely around the built-in device battery recharges easily once. To charge the External Battery fully, it takes a relatively long time (about 6-8 hours). Some small negative points stand out: First, the battery pack can not with any cable used for charging, but one can also use the enclosed small cable, on the other hand the loading takes a long time, also it does not interfere with charge status display something, but you can at the price really nothing to say, so that the product has nevertheless deserves clear 5 Stars!