Mean Well RSP-500-15 Switching Power Supply
IT just arrived. Initial impressions: Much heavier than the cheapowatt 1/2" wider, 1/2 inch longer and almost 1/2 inch less High than cheapowatt. The casing is about 50 to 75% thicker aluminum t...
Forum Discussion
I took screwy 31 to 42ah from full tonight, turned Meanwell all the way down to 13.34v and plugged it into 31. Amps shot upto 40 and started tapering almost immediately and was in the 16 to 17 range a few minutes later.
I cranked up the voltage pot back upto 40 amps and the Gtpower is reading 0.08v less than my DMM reads at the output terminals(14.42v). The battery monitor was reading 0.6v less. Have not replaced 10 gauge wire from powerpole to battery switch with 8 gauge yet.
My Clamp on DC meter is reading exactly the same as the GTpower, where as before it read about 1 amp lower in this amp range.
I have my DMM temp sensor taped to the hottest part of the case adjacent to the largest transistors. Aiming a small weak fan at the opening on the front of the unit lowered the temp from 109 to 103.5F. At 40 amps the provided fan is running continuously.
The maximum amps are reading almost 1 amp lower than when I was charging the AGM, but the voltage is a bit higher. GTpower meter reading 581 watts as I type this. 581 watts from a 500 watt rated power supply. Not too shabby
The 45 amp power pole is much cooler to the touch than in previous tests with cheapowatt at 36.2 amps and when GTpower still had 12awg aluminum leads. It now is the 14 inches of 10 gauge on the other side of PP to my battery switch which is warm, but nowhere near as warm as before. The 8awg is cool to the touch, the Gtpower meter is also cool to the touch where as before it was 125 to 135F measured by my ir temp gun. Right now it reads 71 F. Ambient temp 68.5f, passing 40 amps, well 39.92a. 50F cooler passing 4 more amps. I think that is pretty significant.
I am very happy I got the new fatter leads soldered onto the GTPower meter. Makes a large difference, and the display of so much information is much appreciated. I'm getting another. I like to put on on my compressor fridge to see how much it consumes in 24 hours at various ambient temps and usage.
I cranked up the voltage pot back upto 40 amps and the Gtpower is reading 0.08v less than my DMM reads at the output terminals(14.42v). The battery monitor was reading 0.6v less. Have not replaced 10 gauge wire from powerpole to battery switch with 8 gauge yet.
My Clamp on DC meter is reading exactly the same as the GTpower, where as before it read about 1 amp lower in this amp range.
I have my DMM temp sensor taped to the hottest part of the case adjacent to the largest transistors. Aiming a small weak fan at the opening on the front of the unit lowered the temp from 109 to 103.5F. At 40 amps the provided fan is running continuously.
The maximum amps are reading almost 1 amp lower than when I was charging the AGM, but the voltage is a bit higher. GTpower meter reading 581 watts as I type this. 581 watts from a 500 watt rated power supply. Not too shabby
The 45 amp power pole is much cooler to the touch than in previous tests with cheapowatt at 36.2 amps and when GTpower still had 12awg aluminum leads. It now is the 14 inches of 10 gauge on the other side of PP to my battery switch which is warm, but nowhere near as warm as before. The 8awg is cool to the touch, the Gtpower meter is also cool to the touch where as before it was 125 to 135F measured by my ir temp gun. Right now it reads 71 F. Ambient temp 68.5f, passing 40 amps, well 39.92a. 50F cooler passing 4 more amps. I think that is pretty significant.
I am very happy I got the new fatter leads soldered onto the GTPower meter. Makes a large difference, and the display of so much information is much appreciated. I'm getting another. I like to put on on my compressor fridge to see how much it consumes in 24 hours at various ambient temps and usage.
