IDCE-4815CTE Discharger&Capacity Tester 1.for 0-60V battery pack 2. ... -phase three wire:220V AC (–20% - +30%)frequency:45-65Hz;IDCE-4815CT even can be supplied power by tested battery group ... you want to discharge. 1 module for 4 batteries monitoring IDCE-4815CTE Battery Discharger & Capacity Tester