I am so very, very impressed with my ALTIZURE rechargeable battery charger for Sure ! When I received my package, it was securely packaged and the batteries were already in the 4 slots of the charger. First of all it came with the batteries which isa bonus ! I plugged it in with the included USB Cord, plugged the one end into the battery case and the other end into a USB Outlet Charger..(not included ) and as it states, it took only 15 minutes to fully charge the batteries !! That is Awesome !! No longer do you have to wait many hours or even overnight to be able to use the batteries, 15 minutes and you can use them. This is truly an Excellent Deal !!