Griddownprepper
New Member
Total novice here. I have 2 delta pros with 1 extra battery each, and (4) 160w panels setup in backyard. These panels have produced up to 600+ watts under total sun conditions, but really, how long does total sun last…. So, I want to put 3200 watt array (essentially 2 1600 watt for each unit) on the roof. Here’s my “dilemma”. Have watched enough videos to be confused. The units are limited to 150v and 15 amp input. I understand concepts of series/parallel/series-parallel. I understand the units will not charge over 150v, but will charge over 15 amps. Seems all the panels I’ve looked at would exceed 150v in series but would work in parallel and series/parallel but would greatly exceed 15 amps. But I ramble…Questions:
I assume going over the 15a there is a loss of efficiency. By exceeding 15a, how much efficiency is lost on input? Is this number derived by multiplying the total input voc by 15?
Would increasing the array output size ie: 1600 to 2400 make up for the loss in efficiency?
Also, is the acceptable input for the delta pro limited/effected by panel voltage (12v, 24v)?
The biggest question…Would exceeding the 15 amp limit fry the units?
I assume going over the 15a there is a loss of efficiency. By exceeding 15a, how much efficiency is lost on input? Is this number derived by multiplying the total input voc by 15?
Would increasing the array output size ie: 1600 to 2400 make up for the loss in efficiency?
Also, is the acceptable input for the delta pro limited/effected by panel voltage (12v, 24v)?
The biggest question…Would exceeding the 15 amp limit fry the units?