Lenovo Battery
42T4667
is compatible in the following Models:
Lenovo ThinkPad R Series laptops
ThinkPad R400 - 2786RQ9
ThinkPad R400 - 7439AY3
ThinkPad R400 - 7439CTO
ThinkPad R400 - 7439PQ6
ThinkPad R400 - 7439PT4
ThinkPad R400 - 7439RA1
Lenovo ThinkPad T Series laptops
ThinkPad T400 - 6473TBM
ThinkPad T400 - 6474CTO
ThinkPad T400 - 6474RN3
ThinkPad T400 - 7417CTO
ThinkPad T61 - 766318M