Compatible with the following models:![]() IBM Laptop Batteries > ThinkPad 390 IBM Laptop Batteries > ThinkPad i1700 IBM Laptop Batteries > ThinkPad i1720 IBM Laptop Batteries > ThinkPad i1721 Lenovo Batteries > ThinkPad 1-999 Series > ThinkPad 390 Lenovo Batteries > ThinkPad i Series > ThinkPad i1700 Lenovo Batteries > ThinkPad i Series > ThinkPad i1720 Lenovo Batteries > ThinkPad i Series > ThinkPad i1721 |