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
I will try a new test with better input.
Watching this somewhat confusing video (WP again :) ) He is using skinny wires for his testing, and first gets 201w in and 174w out for 86% efficiency.
He then tries a higher load on the output and gets 658w in and 519w out, which is 79% He said the output then was 40 amps at 12.7v battery so that is 508w. He did not say what the input watts components were for that 658w. At 14v truck battery that would be 658/14 = 47 amps and at 13v truck that would be 51 amps.
With the fat wire test I did, it was
Input watts 12.2 x 30 = 366w Output watts 14.38 x 20 = 288w
288/366 = 78.7% so his 79% compares.
otrfun got 13.8 x 42.2 = 582w in and 40 x ? 13.4 ? = 536 out = 92%
https://www.youtube.com/watch?v=EcVjPap9dkY
Watching this somewhat confusing video (WP again :) ) He is using skinny wires for his testing, and first gets 201w in and 174w out for 86% efficiency.
He then tries a higher load on the output and gets 658w in and 519w out, which is 79% He said the output then was 40 amps at 12.7v battery so that is 508w. He did not say what the input watts components were for that 658w. At 14v truck battery that would be 658/14 = 47 amps and at 13v truck that would be 51 amps.
With the fat wire test I did, it was
Input watts 12.2 x 30 = 366w Output watts 14.38 x 20 = 288w
288/366 = 78.7% so his 79% compares.
otrfun got 13.8 x 42.2 = 582w in and 40 x ? 13.4 ? = 536 out = 92%
https://www.youtube.com/watch?v=EcVjPap9dkY
