Premium Power Products compatible laptop battery for IBM ThinkPad i1100 1200 1300 series. Also works with i1200 i1210 i1211 i1241 i1251 i1271 i1300 i1300 series i1321 i1340 i1351 i1361 i1391. Fits with compatible part numbers: 02K6680 02K6692 02K6693 IBI1200 02K6901 IBI1200.