This battery has been specifically designed to work with the IBM Thinkpad series notebook computers listed below:
IBM / Lenovo ThinkPad R50-1829, IBM / Lenovo ThinkPad R50-1830,, IBM / Lenovo ThinkPad R50,1831 IBM / Lenovo ThinkPad R50,1832, IBM / Lenovo ThinkPad R50,1833, IBM / Lenovo ThinkPad R50,1836 IBM / Lenovo ThinkPad R50,1840, IBM / Lenovo ThinkPad R50,1841, IBM / Lenovo ThinkPad R50,2883 IBM / Lenovo ThinkPad R50,2887, IBM / Lenovo ThinkPad R50,2888, IBM / Lenovo ThinkPad R50,2889 IBM / Lenovo ThinkPad R50,2894, IBM / Lenovo ThinkPad R50,2895, IBM / Lenovo ThinkPad R50E IBM / Lenovo ThinkPad R50E-1834, IBM / Lenovo ThinkPad R50E-1842, IBM / Lenovo ThinkPad R50E-1844 IBM / Lenovo ThinkPad R50E-1845, IBM / Lenovo ThinkPad R50E-1846, IBM / Lenovo ThinkPad R50E-1847 IBM / Lenovo ThinkPad R50E-1848, IBM / Lenovo ThinkPad R50E-1849, IBM / Lenovo ThinkPad R50E-1850 IBM / Lenovo ThinkPad R50E-1858, IBM / Lenovo ThinkPad R50E-1859, IBM / Lenovo ThinkPad R50E-1860 IBM / Lenovo ThinkPad R50E-1862, IBM / Lenovo ThinkPad R50E-1863, IBM / Lenovo ThinkPad R50E-1870 IBM / Lenovo ThinkPad R50P, IBM / Lenovo ThinkPad R50p,1829, IBM / Lenovo ThinkPad R50p,1830 IBM / Lenovo ThinkPad R50p,1831, IBM / Lenovo ThinkPad R50p,1832, IBM / Lenovo ThinkPad R50p,1833 IBM / Lenovo ThinkPad R50p,1836, IBM / Lenovo ThinkPad R50p,1840, IBM / Lenovo ThinkPad R50p,1841 IBM / Lenovo ThinkPad R50p,2883, IBM / Lenovo ThinkPad R50p,2887, IBM / Lenovo ThinkPad R50p,2888 IBM / Lenovo ThinkPad R50p,2889, IBM / Lenovo ThinkPad R50p,2894, IBM / Lenovo ThinkPad R50p,2895 IBM / Lenovo ThinkPad R50,Series, IBM / Lenovo ThinkPad R51,1829, IBM / Lenovo ThinkPad R51-1830 IBM / Lenovo ThinkPad R51-1831, IBM / Lenovo ThinkPad R51,1832, IBM / Lenovo ThinkPad R51,1833 IBM / Lenovo ThinkPad R51-1836, IBM / Lenovo ThinkPad R51-1840, IBM / Lenovo ThinkPad R51-1841 IBM / Lenovo ThinkPad R51-2883, IBM / Lenovo ThinkPad R51-2887, IBM / Lenovo ThinkPad R51-2888 IBM / Lenovo ThinkPad R51-2889, IBM / Lenovo ThinkPad R51-2894, IBM / Lenovo ThinkPad R51-2895 IBM / Lenovo ThinkPad R51E-1834, IBM / Lenovo ThinkPad R51E-1842, IBM / Lenovo ThinkPad R51e,1844 IBM / Lenovo ThinkPad R51E-1845, IBM / Lenovo ThinkPad R51E-1846, IBM / Lenovo ThinkPad R51E-1847 IBM / Lenovo ThinkPad R51E-1848, IBM / Lenovo ThinkPad R51E-1849, IBM / Lenovo ThinkPad R51E-1850 IBM / Lenovo ThinkPad R51E-1858, IBM / Lenovo ThinkPad R51E-1859, IBM / Lenovo ThinkPad R51E-1860 IBM / Lenovo ThinkPad R51E-1861, IBM / Lenovo ThinkPad R51E-1862, IBM / Lenovo ThinkPad R51E-1863 IBM / Lenovo ThinkPad R51E-1870, IBM / Lenovo ThinkPad R51,Series, IBM / Lenovo ThinkPad R52,1843 IBM / Lenovo ThinkPad R52,1844, IBM / Lenovo ThinkPad R52,1845, IBM / Lenovo ThinkPad R52-1846 IBM / Lenovo ThinkPad R52-1847, IBM / Lenovo ThinkPad R52-1848, IBM / Lenovo ThinkPad R52-1849 IBM / Lenovo ThinkPad R52,1850, IBM / Lenovo ThinkPad R52-1858, IBM / Lenovo ThinkPad R52-1859 IBM / Lenovo ThinkPad R52-1860, IBM / Lenovo ThinkPad R52-1861, IBM / Lenovo ThinkPad R52,1862 IBM / Lenovo ThinkPad R52,1863, IBM / Lenovo ThinkPad R52,1870, IBM / Lenovo ThinkPad R52,Series IBM / Lenovo ThinkPad T40-2373, IBM / Lenovo ThinkPad T40-2374, IBM / Lenovo ThinkPad T40P IBM / Lenovo ThinkPad T40,Series, IBM / Lenovo ThinkPad T41P, IBM / Lenovo ThinkPad T41,Series IBM / Lenovo ThinkPad T42P, IBM / Lenovo ThinkPad T42,Series, IBM / Lenovo ThinkPad T43,1871 IBM / Lenovo ThinkPad T43-1876, IBM / Lenovo ThinkPad T43,2668, IBM / Lenovo ThinkPad T43P IBM / Lenovo ThinkPad T43P-2668, IBM /Lenono,ThinkPad ,T43,Series,