Cheap China Solar Controller Failure
For a couple days been noticing higher than the 14.6 voltage,.....going to 15, and even 15.5,....I knew something was not right. The next day it was showing 16, then quickly went to 17+.......I quickl...
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Can you use the Eco-W as a PWM controller. NO
While it does use a PWM charging in absorb and float mode, all the power is produced via the buck converter. So you can hook up two 12v in parallel but the controller is still going to use whatever excess voltage to create more amps when in bulk mode.
You can see the converter in use even while the controller is in PWM mode. I can see near the same amps running load in float as in bulk with MPPT. My 245w's exceed 10a Isc even here in Denver but I'll see 16a per panel in float.
While it does use a PWM charging in absorb and float mode, all the power is produced via the buck converter. So you can hook up two 12v in parallel but the controller is still going to use whatever excess voltage to create more amps when in bulk mode.
You can see the converter in use even while the controller is in PWM mode. I can see near the same amps running load in float as in bulk with MPPT. My 245w's exceed 10a Isc even here in Denver but I'll see 16a per panel in float.
