This replacement battery is compatible with Laptops for IBM. With this battery for your notebook you can get long hours of battery life without having to frequently plug-in to recharge. Long enough battery life is essential to optimizing your productivity while in meetings or traveling. Get one, you will never regret!<!--Features --><p>FEATURES</p><ul class="p_f"><li>New high quality generic Li-ion Battery Pack for IBM T40 / T41 / T42 / T43 (9cells 10.8V 7800mAh)</li><li>100% original manufacturer compatible</li><li>No memory effect. Chargeable even if it has not been used up yet</li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody> <tr> <td width="131">Product Type</td> <td width="365">Replacement Battery</td></tr> <tr> <td width="131">Cell Type</td> <td width="365">Li-ion</td></tr> <tr> <td width="131">Cells</td> <td width="365">12</td></tr> <tr> <td width="131">Whr</td> <td width="365">84.2</td></tr> <tr> <td width="131">Battery Cells</td> <td width="365">9-cells</td></tr> <tr> <td width="131">Voltage</td> <td width="365">10.8V</td></tr> <tr> <td width="131">Capacity</td> <td width="365">7800mAh</td></tr> <tr> <td width="131">Net Weight</td> <td width="365">455.00 g</td></tr> <tr> <td width="131">Color</td> <td width="365">Black</td></tr> <tr> <td width="131">Dimensions</td> <td width="365">205.12 x 59.10 x 21.10 mm / 8.08 x 2.33 x 0.83 inch</td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x Laptop Battery 7800mAh 10.8V for IBM ThinkPad T42 T43 R51</li></ul><!--Extra Info --><!--produts_compatibility -->