This new Li-Ion laptop replacement battery from V7 is 100% compatible with your LENOVO 3000 NOTEBOOK G530, N500 laptop and is rated at 11.1V, 4800mAh. V7 laptop batteries meet or exceed the original LENOVO - IBM laptop battery specifications because they are manufactured for high performance in ISO 9000 factories using the best quality cells and most up to date safety and engineering control standards.