I secured a XW-MPPT-60-150 for my 48v nominal 400ah 16 series Winston Cells. I've set the solar charge controller for two stage charging and zero for the battery bank amp hour capacity. For the few days I've been running it without zeroing the battery amp hour setting I seem to see it spends more time off than on. I'm hoping this setting keeps it charging non-stop especially in these cloudy rainy conditions.
Otherwise I was setting:
Bulk: 54.5
Absorption: 54.5 (not sure what this one should be)
Equalization: Off
Two Stage Charging: On (no float)
Absorption Time: 800 (max)
Even when the sun is shining and I'm here on the boat I'm a pretty hungry energy consumer and there is no way so far that I see the solar getting anywhere near to having the bank above 55 volts. That could change though when I get all 2160 Watts of my panels at least level and not mounted to the sides of the boat like 4 180w panels are.
I'm running 2160watts of panels flexible in 2 in series and then in parallel. I'm 79.80 VOC and 5.48 amp per set for a theoretical maximum of 32.88 amps. It will be interesting as summer approaches to see if the MPPT controller will surpass this or not. I've only ever seen the panels as high as 26 amps once outside on my extended test bench on land and not mounted on the boat. Previously and still I'm using a standard shunting type charge controller for other DC input loads like generators and battery chargers and perhaps a few windmills in the future.
Anyway I just don't want the charge controller shutting down even if I can get .5 amp out of it. What have other people done with there Xantrex charge controllers?
Otherwise I was setting:
Bulk: 54.5
Absorption: 54.5 (not sure what this one should be)
Equalization: Off
Two Stage Charging: On (no float)
Absorption Time: 800 (max)
Even when the sun is shining and I'm here on the boat I'm a pretty hungry energy consumer and there is no way so far that I see the solar getting anywhere near to having the bank above 55 volts. That could change though when I get all 2160 Watts of my panels at least level and not mounted to the sides of the boat like 4 180w panels are.
I'm running 2160watts of panels flexible in 2 in series and then in parallel. I'm 79.80 VOC and 5.48 amp per set for a theoretical maximum of 32.88 amps. It will be interesting as summer approaches to see if the MPPT controller will surpass this or not. I've only ever seen the panels as high as 26 amps once outside on my extended test bench on land and not mounted on the boat. Previously and still I'm using a standard shunting type charge controller for other DC input loads like generators and battery chargers and perhaps a few windmills in the future.
Anyway I just don't want the charge controller shutting down even if I can get .5 amp out of it. What have other people done with there Xantrex charge controllers?
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