Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not the correct battery replacement

According to the Shark website, this is not the correct battery replacement for the VX3. The battery offered on the Amazon website, as part of a 'deal' for buying the VX3 is actually for the SWIVEL sweeper - NOT the VX3. The correct battery replacement pack is XB1918 for the VX3, which is also offered on the Amazon website, but not as part of a deal when buying the VX3. The VX3 battery is more expensive.