To double or triple the capacity of Delta Max, increase its capacity to 4032 Wh or 6048 Wh and extend runtime. Input: 1x 50.4 V, 1800 W Max. Output: 1x 43 V-58.4 V, 3200 W Max. Can be charged with all charging methods offered by the Delta Max. LCD display shows output, input, remaining charge, and remaining runtime.