expected normal voltage drop from load?
Is there a rule of thumb or guidance for an expected voltage drop based on amp load on a pair of 6V GC batteries? I was tinkering in my trailer this weekend and ran a 750 watt AC electric heater off ...
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Charge controller has temperature correction, although I do have a HVD setting at 15.95V. I'll up my equalization time/voltage parameters and HVD, but I'm not sure that will actually get me more time at that voltage during short winter daylight. I also wonder if the solar equalization is a "proper" one with this PWM controller (Morningstar Tristar 45)? It holds the voltage by controlling amps, so while the batteries are being held at that voltage it is just getting a trickle of amps. Is that really doing what it needs to?
While I have a hydrometer, I do confess to laziness in checking it during winter and particularly since 12" of fresh snow that fell since Sunday. The last time I had the batteries opened was late fall when I topped off water. I took an SG reading then, but it was during active solar charging so I don't think it was a legit reading. Does SG get biased during active charging? Is it impacted by a surface charge?
I certainly don't doubt that my batteries have been compromised and will replace them if necessary. My solar charge controller is completely customizable, so I'm open to charging parameter suggestions as well for use during winter storage. The only battery charger I currently have is the onboard WFCO 55 and the sun.
While I have a hydrometer, I do confess to laziness in checking it during winter and particularly since 12" of fresh snow that fell since Sunday. The last time I had the batteries opened was late fall when I topped off water. I took an SG reading then, but it was during active solar charging so I don't think it was a legit reading. Does SG get biased during active charging? Is it impacted by a surface charge?
I certainly don't doubt that my batteries have been compromised and will replace them if necessary. My solar charge controller is completely customizable, so I'm open to charging parameter suggestions as well for use during winter storage. The only battery charger I currently have is the onboard WFCO 55 and the sun.
