Home laptop battery ibm ThinkPad i1721 batteries Compatible Laptop Battery for ibm ThinkPad i1721 Click to enlarge Find other parts of your ibm ThinkPad i1721 Code:1 Special price: $AUD Number: Brand new product with 1 year warranty! This ThinkPad i1721 batteries replaces: This ThinkPad i1721 batteries is compatible with the following models: