Renogy DC-DC Test Results-UPDATE 4 (Better!)
Updates 23 June--new test with Renogy input exposed for voltage readings Update 25 June more readings Update 4 - 27 June-- fewer amps with fat wire were noted this time! ----- I have the 20 ampe...
Forum Discussion
StirCrazy wrote:You mentioned in a previous post you wanted to keep your voltage drop down to less than 1%. 1% for our install (23 ft.) would have required 4/0 cable. We're experiencing a ~2.5% voltage drop using 2 gauge cable (~10% overall conversion loss w/40a Renogy). For our install, 2 gauge provided us max. bang for the buck (cost, installation hassle, voltage drop, etc). If our install had required a ~30 ft. cable run, like many 5r/TT installs require, we'd probably bumped up to a 1 gauge cable to keep our conversion loss at <=10%.
thats what I wanted to see. do you think there would be any benifit of going larger than 2ga or do you think at that point its not worth the extra money?
Steve
That's just our preference. Nothing wrong with going with an extremely low or high (<=50%) conversion loss as long as you understand the implications.
Hope this helps.
