Recent content by jdhahn1

I have a small 400W array (4x100W panels) to a 1000W MPP all in one solar charge controller inverter and 206 AH LiFePo4 battery. The run from the panels to MPP station is only about 15-20', battery storage is 12V. Would this system be most productive doing all parallel panel connections to...

Are you mounting that heater on a wall of the insulated box or under the battery itself? Feels risky to have the heat source touching the battery even if it's dissipating through the sheet metal plate. Or does it never get anywhere near the normal working temp since it's not being powered with...

So just to make sure I understand... I would wire the resistor and perko rotary battery disconnect switch inline on the positive between the battery and all in one station? I'm guessing the MPP station is ok to be on but inverter needs to be off, or do I do this pre-charge before powering up...

Below is the spec on the SOK battery. Is the recommended charge rate the same with two batteries in parallel or does that double as well? The cabin temps would certainly drop below their listed storage temp range while the cabin was disconnected and unoccupied. Do you think that is really a...

Thanks for your input @FilterGuy I really appreciate it! This system is just going to power lights and charge small handheld devices 99% of the time, but I'll definitely use that calculator to make sure I have enough capacity for my needs. I think I understood all you points. For keeping...

Hi all, Completely new to solar systems and electrical in general, I've been working on designing a small/basic system for our mountain cabin. I had been researching and designing a system from individual components but am now thinking about going the all-in-one route just for simplicity's...

Hi! I'm in the process of designing a small 24V solar system for an off grid cabin. The cabin will be well below freezing a lot of the winter, so I'll definitely be running into the scenario where the battery is too cold to take a charge and potentially even too cold to discharge at times...