Many times you don't have access to a USB port or it's being used for something else. This global USB Power wall adaptor allows you to use a wall outlet to charge your batteries. This adaptor also speeds up the charging process as many USB ports are slow to charge because they don't carry as much current.
For use with the Therm-ic USB charger that come with the 2017 or newer Therm-ic C-Pack batteries. This will not work with the older Therm-ic Max, SuperMax, Liion, or Smartpack 950, 1200, and 1600 batteries.