IBM Thinkpad ThinkPad 600X Li-Ion Battery Pack - 10L2158

This is a Lithium Ion battery for the Thinkpad 600 Series notebook.Additional batteries are a vital neccesity on long trips when an AC outlet isn't available. The high performance 600 series can drain batteries quickly- especially when using the multimedia features. Don't leave yourself in the dark. This battery should provide an average of three hours of use.IBM offers a one year warranty on this product.