Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is not for the HX4700

I purchased this item for my HX4700 machine and the battery does not fit. I checked on the HP web site and saw that I need a different part number. I'm trying to get the thing changed out but since I purchased from the "used and new" link to save $20 I may be in for a battle. I blame Amazon for an incorrect title but we will see how it works out.