About this replacement
Designed for IBM devices. Compatible models include ThinkPad T20, ThinkPad T21, ThinkPad T22, ThinkPad T23, ThinkPad T24. Replacement part numbers include 02K6620, 02K6621, 02K6649, 02K7025, 02K7026, 02K7028, 08K8026, FRU 02K6626, FRU 02k6627, FRU 02K7030, FRU 02K7032. Key specifications: 10.8V, 4400mAh, Li-ion.