Battery Ratings : li-ion, 10. 8v / 11. 1v, 4400mah, Compatible battery part numbers (p/ns) : 51j0226 asm 42t4586 fru 42t4585 l08l6c02 l08o6c02 l08s6c02 121000723 121000791 121000792 121000793 42t2722 42t4577 42t4579 42t4581 42t4583 42t4584 42t4585 42t4586 42t4721 42t4725 42t4726 42t4727 42t4728 42t4729 42t4730 51j0226 57y6266 l08l6c02 l08l6y02 l08n6y02 l08o6c02 l08s6c02 l08s6y02 Supports the following laptop models : lenovo 3000 g430 lenovo b460, b550, g450, g455, g530, g550, g555, n500 lenovo ideapad z360 3000 g430 3000 g430 4152 3000 g430 4153 3000 g430a 3000 g430m 3000 g450 3000 g450 2949 3000 g450a 3000 g450m 3000 g530 3000 g530 4151 3000 g530a 3000 g530m 3000 n500 ideapad g430 ideapad g430 20003 Kindly match carefully battery image, battery part number (P/N) and laptop model, before purchase. Please check above battery part number (P/N) from the label of existing battery. If your laptop's battery part number is not listed here, please ask me through "ask seller a question" link and I will help you decide which battery is suitable for your laptop.