Lenovo Battery
42T4645
is compatible in the following Models:
Lenovo ThinkPad R Series laptops
ThinkPad R400 - 7439CTO
Lenovo ThinkPad T Series laptops
ThinkPad T400 - 2765EAU
ThinkPad T400 - 2765PAU
ThinkPad T400 - 276712M
ThinkPad T400 - 2768A17
ThinkPad T400 - 6474B86
ThinkPad T400 - 6474CTO
ThinkPad T400 - 6475CA4
ThinkPad T400 - 6475JB1
ThinkPad T400 - 7417CTO
ThinkPad T400 - 7434A88