About this replacement
Designed for IBM devices. Compatible models include Thinkpad R30, Thinkpad R31. Replacement part numbers include 02K7052, 02K7053, 02K7054, 02K7055, 02K7056, 02K7058, 02K7059, 02K7060, 02K7061, FRU 02K6928, FRU 02K7053, FRU 02K7057. Key specifications: 10.8V, 4400mAh, Li-ion.