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I am just assembling components to build a variation of the Classic 400w system Will has in his book. I have ordered a BigBattery 170ah battery to go with the Epever Tracer4215BN controller just arrived today. From what I read this is kind of plug and play as far as the controller and battery...

Just a simple question to anyone smarter than me, (there are many). :) I have a LiFePo battery bank fed by two 40 amp charge controllers and solar panels on our 5th wheel trailer. We travel more than half the year powering an inverter and 12 volt accessories. Now the question is, during our...

I know series panels must be the same rating. But does that mean they need to be exactly the same? In other words can I use different brand 100watt 20v panels in series? They all have slightly different volt/amp ratings. Does each par need to be identical? I want to series parallel them. Thanks...

Two things I want to get straight in my head. First is the charge controllers rating. If I have 4 100 watt panels with an output of 20 volts each in parallel, I have 20 amps coming in, (under perfect conditions of course), but the controllers output is 12 volts which should mean 33.3 amps out...