Battery-Biz Inc. 3 Volt Lithium  Battery
220 mAH, Works with Dell Dimension XPS, OptiPlex GX Pro, Compaq Presario CQ61-420US, Dell OptiPlex XMT, OptiPlex L, Dimension 486SX/25, 486MX, Dimension P, Acer 486SX/33, AJP 1200 and more...