Detailed Product Description Compatible with ACER TravelMate 4000, 4500, 2300, Aspire 1680 Series,not fit Acer Travel Mate 4050 - 4051 Replace battery part no.: LCBTP03003 Li-ion 14.8V 4,400mAh Made by LG cells and assemble in China Perfect performance We also produce even more laptop batteries for IBM, Sony, and Toshiba