Review on Powerful 42V 2A Charger for Turboant X7 36V 10S Battery Pack AE Board - Input 100-240V AC, DC 5.5 X 2.1MM Jack Plug by Carl Ferguson

Doesn't work with my M365 or Segway Ninebot or Bird Scooter. The seller clearly states 10mm, so buyers should be careful. This is an RCA plug, but 10mm is too big. I've since had another generic brand for less than $12. I will only keep it because one day I can use it if another charger fails; cut off this larger connector and connect it to a smaller (correct) RCA connector if so. I have no idea which scooter this fits. Otherwise, Tangspower is a good Chinese brand.