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Hi everyone, I hope somebody can help explaining what is going on with my setup.
I have a jinko JKM260PP-60 which is a 260 W panel, I have verified it to produce 30 volts at 8 amps, I have it hooked to a 20 Amp mppt charge controller which is connected to 2 NORTHSTAR NSB190 batteries connected in series to make 24 vdc.
Hooked to these batteries I have a APC SMT-750 UPS which powers a small HP server which according to the ups is pulling 35 W total power.
it was my expectation that I could ideally run this load literally all day as long as the sun was shining, but in my testing after about 1 hour the batteries start to go down, this is surprising to me since I expected the panel to produce enough juice to run this small 35W load + the UPS of course but still...
I'll appreciate any input on this matter.
Thanks
I have a jinko JKM260PP-60 which is a 260 W panel, I have verified it to produce 30 volts at 8 amps, I have it hooked to a 20 Amp mppt charge controller which is connected to 2 NORTHSTAR NSB190 batteries connected in series to make 24 vdc.
Hooked to these batteries I have a APC SMT-750 UPS which powers a small HP server which according to the ups is pulling 35 W total power.
it was my expectation that I could ideally run this load literally all day as long as the sun was shining, but in my testing after about 1 hour the batteries start to go down, this is surprising to me since I expected the panel to produce enough juice to run this small 35W load + the UPS of course but still...
I'll appreciate any input on this matter.
Thanks