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 just plotted last nights test on the 36AH depleted screwy 31.
Don't know how many more graphs I'll be plotting. The MW is capable of 40 amps constant current till battery reaches ABSV, and beyond, if I have the voltage pot turned high enough
IPNV is the battery voltage as measured by my IPN pro remote battery monitor.
GTPV is GTpower voltage
MWTV is meanWell terminal voltage measured by DMM.
I stopped recording and testing at the 2 hour mark when battery could only accept 3.7A at 14.65v. I unplugged entirely at 4:01 am.
The Spike peak is when I lowered the voltage pot when battery voltage just touched 14.7v at the 32 minute mark.
So 32 minutes of 40 amps were required before screwy31 battery voltage rose to 14.7v from 12.1v on a 130 amp hr battery( rated new) which is now very close to the 300 cycle benchmark, with over 70% of those discharges below 60% SOC
The higher GTPA reading is counting both current into battery as well as 12v loads on battery at the time.
The IPNA is reading only amps into Screwy31.
The .24a of fans were not measured in the GTPA.
Gonna start a 2 hour test soon on 31, with single 80MM Noctua Fan (31cfm) embedded into case cover, exhausting at full speed the whole test.
Don't know how many more graphs I'll be plotting. The MW is capable of 40 amps constant current till battery reaches ABSV, and beyond, if I have the voltage pot turned high enough
IPNV is the battery voltage as measured by my IPN pro remote battery monitor.
GTPV is GTpower voltage
MWTV is meanWell terminal voltage measured by DMM.
I stopped recording and testing at the 2 hour mark when battery could only accept 3.7A at 14.65v. I unplugged entirely at 4:01 am.
The Spike peak is when I lowered the voltage pot when battery voltage just touched 14.7v at the 32 minute mark.
So 32 minutes of 40 amps were required before screwy31 battery voltage rose to 14.7v from 12.1v on a 130 amp hr battery( rated new) which is now very close to the 300 cycle benchmark, with over 70% of those discharges below 60% SOC
The higher GTPA reading is counting both current into battery as well as 12v loads on battery at the time.
The IPNA is reading only amps into Screwy31.
The .24a of fans were not measured in the GTPA.
Gonna start a 2 hour test soon on 31, with single 80MM Noctua Fan (31cfm) embedded into case cover, exhausting at full speed the whole test.
