HI all, quick story about my school project (ironically due in 11 days):
Currently have a 50W 12V panel attached to a Morningstar SG-4 hooked up to a standard 12V lead acid battery. Controller has been working great during previous tests pushing out 2A consistently. While finishing up the wiring (panel and controller disconnected from battery) the battery was accidentally shorted to the negative terminal through a relay we are using. At first we didn't think anything of it so we hooked everything back up...little did we know the relay seems to be shot because there is no continuity through it whatsoever (tested with and without power to the coil). Threw the relay out and wired up the controller straight to the battery and took it outside -- no current. it was about 6pm and slightly cloudy but not dark by any means.
I'm having a hard time believing a potentially fried relay could cause any problems with the controller once it was hooked up. Am I safe to assume the SG4 charge controller won't have an output unless the panel voltage was greater than the battery voltage? Meter read .001-.002A. Battery was at about 12.2V. Sorry for the stupid questions.
Currently have a 50W 12V panel attached to a Morningstar SG-4 hooked up to a standard 12V lead acid battery. Controller has been working great during previous tests pushing out 2A consistently. While finishing up the wiring (panel and controller disconnected from battery) the battery was accidentally shorted to the negative terminal through a relay we are using. At first we didn't think anything of it so we hooked everything back up...little did we know the relay seems to be shot because there is no continuity through it whatsoever (tested with and without power to the coil). Threw the relay out and wired up the controller straight to the battery and took it outside -- no current. it was about 6pm and slightly cloudy but not dark by any means.
I'm having a hard time believing a potentially fried relay could cause any problems with the controller once it was hooked up. Am I safe to assume the SG4 charge controller won't have an output unless the panel voltage was greater than the battery voltage? Meter read .001-.002A. Battery was at about 12.2V. Sorry for the stupid questions.
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