the product is exactly what I needed for my old Acer Pc; So fit on the device ... I have the battery for the first time (as recommended everywhere) at least 18 hours to fully charge ... The battery is never charged to 100% (69% to about 50%!) And to hold a charge very little ... even if the PC is switched off completely, the battery is soon almost empty to empty ... no idea why it happens! The battery lasts so but a little more than the old one (which was completely ko and a single minute did), but the right solution is not bestimt! ... Unfortunately ... :-(