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Have a battery meter connected (also via DC shunt). So, right now, I'm drawing about 200 watts (2 fans, and a medium-sized TV, playing some Star Trek: TNG...in the garage). I'll let all of that run for a couple of hours, and keep an eye on the battery's SoC. 400 Wh drawn from my 720 Wh...

So, to follow up on this... Yup, stupidity verified. We ran our batteries down the other night (got 849 Wh out of our "rated at 720 Wh" batteries...so that's pretty cool.) The next day (yesterday), Zeta blew through...and it was VERY overcast all day. But, even with that, we got a peak of...

The controller and inverter I've got are super-uber basic. I don't see ANY settings on them (the only "setting" the controller has is "battery type", which is set it LiFePo4). The inverter specs say low-voltage cutoff is 10V (and that's when it stopped outputting juice) Nope. I intentionally...

I think the RTG is not a realistic solution to my power problems. I've found a simple low-voltage disconnect, and should be able to wire it into the power switch on the inverter. Recommended voltage to disconnect? The disconnect I found has the following options: 12.1 VDC 11.4 VDC 10.7 VDC...

Again, many thanks. I did some searching (both on Google and on here) and couldn't find a good number. Must've been searching the wrong term. I did find one low-voltage disconnect that mentioned that it cuts off when the battery reaches 2.9 VDC per cell. A quick bit of math gave me 11.6 VDC...

Hello all. Very new to the site (account is about 4 minutes old) and new to solar. Have been an electronics technician for decades so I at least know what end of the soldering iron gets hot. Not exactly a "newbie" with electronics, but definitely newbie on solar...so not sure what I'm doing...

Thanks for replying! The Wanderer is a PWM controller Specs tell me: Nominal System Voltage - 12 VDC Rated Charge Current - 30A Max PV Input Voltage -25 VDC With four 100-watt panels in parallel, I'm getting 14-18 VDC (but basically no current to write home about). With a 25 VDC max PV input...

OK, found a diagram on the Renogy site that almost-perfectly shows my setup...other than much longer wires from the panels to the controller (all of the summing is done up on the roof, with just the pigtails from the panels. Long wire run is just a single pos/neg set of wires)

SPECIFICATIONS Maximum Power at STC: 100W Cell Efficiency: 21.00% Optimum Operating Voltage (Vmp): 17.9V Open-Circuit Voltage (Voc): 21.6V Optimum Operating Current (Imp): 5.72A Short-Circuit Current (Isc): 6.24A Operating Temperature: -40°F to 176°F Maximum Series Fuse Rating: 15A...