Amazon.com: URUN DC31 Adapter for Dyson DC31 Series Vacuum Cleaner, Milwaukee M18 18V Battery to Replace for Dyson DC31 DC35 DC34 DC44 DC45 Handhold Vacuum Cleaner(Not fit All Type B Model, DC44
Amazon.com: TPDL Adapter for Makita Battery Convert for Dyson Type-A DC31 DC34 DC35 DC44 DC45 for Dyson Handheld Cordless Vacuum Animal 917083-01(Not fit All Type B Model, not for DC44 MK2) :