for: ibm

type: li-i

vol: 10.8v

capacity: 4400mah

g.w:

312g

replaced models

02k6620 02k6621 02k6626,02k6627 02k6649 02k6857,02k6858 02k6859 02k7025,02k7026 02k7027 02k7028

laptop models

thinkpad t20

thinkpad t20 2647-xxx

thinkpad t20 2648-xxx

thinkpad t21

thinkpad t21 2647-xxx

thinkpad t21 2648-xxx