dear team today i purchase dell new battery for dell vostro 2520 and below are the detail.
can anybody tell me it is original and how much backup it will give after full chrage
It's a Dell part number and is genuine if purchased from Dell or a Dell authorized parts seller. Anywhere else -- ask the seller.
6-cell in a 15.6" notebook will run anywhere from about 2 to 4 hours depending on power management settings, CPU type and screen resolution.