New Genuine 42V 1.7A Battery Charger, Genuine Xiaomi (HT-A09-71W). Use this high quality charger for your 36v battery packs, as well as your electric scooter Xiaomi Mijia M365/Pro Mi Home Scooter, Ninebot ES1/ES2/ES3/ES4, Bird, Lime, Lime-S, Skip, and Spin. Equipped with smart power management features.

Charger LED Indicator Light
Solid red = charging / Blinking red = trickle charge / Green = fully charged.
When plugged into your battery pack, if you see the charger's LED indicator light is blinking (trickle charge), leave your battery pack charging for an extended period of time until the charger's LED indicator light turns solid red.

This charger has an XT30 connector,  if you need the original connector buy this listing: https://www.ebay.com/itm/196261777529