This is a brand new Samsung high capacity 45 Watt Hour battery. The superior South Korean cells inside this battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries.
Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This laptop battery replacement is typically superior to the original battery and is 100% compatible with your Samsung laptop computer.
This Samsung NP530U4Ba battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 1 year warranty.