Amazon.com - Dyson Replacement or Additional Click-in Battery for V11 Cordless Stick Vacuums, Part No. 970425-01 -
Amazon.com: JHTC 25.2V 4200mAh Upgraded V11 Battery Replacement for Dyson V11 Complete,V11 Absolute,V11 Fluffy (Not for V11 Extra Series and V11 Animal) : Home & Kitchen