[URL] No, there's no USB charging on this model. The only 4 hour rating I see is that the battery takes 4 hours to charge.  With the 3-cell I doubt you'll see 4 hours' runtime under normal operating conditions.
How can I get the "white sheet" or Full specs for Dell I3511-7118BLK-PUS sold at office Depot?   The only specs I find are below and they state 4 hour runtime which I think is probably wrong and 3 USB ports, but not what type of usb ports they are battery watt hour rating and whether it has a USB-C port that supports charging is what I really need to know before actually buying one. dell support was no help and office depot support was no help either. I actually went to office depot to see if the box had any more information on it but the salesman wouldn't bring one out, but he said that there wasn't any of that info on the box. Thanks  
How do I find the Laptop Specs for inspiron 3511-7118BLK-PUS?