Dyson DC16 vaccuum charger rated 28Vdc on the output, but measures 24-27V on connecting and (very) slowly drops to 18V while connected. What could be the problem? : r/AskElectronics
5.0 Ah DC16 21.6 Volt Lithium-Ion Battery for Dyson 912433-03 12097 BP01 Animal 190268463126 | eBay
HOW TO FIX DYSON DC16| DYSON DC16 WITH BATTERY PROBLEM| DYSON NOT CHARGING| HOW TO FIX DYSON VACUUM - YouTube