Recent content by ryankshaw

that's pretty good! 17 cents a watt shipped $1930 / (365w * 31) = 0.17

How much was shipping? I’m curious what your final to your door price was

just as a datapoint, not so much as a reccomendation: I have a MPP Solar PIP-2024LV-MK 24V System and so far it works pretty decent. but it is pretty loud to have in my travel trailer. I would not choose it again if I was picking something to be in the travel trailer so close to me. I am...

super cool! depending on the pricing, I'd for sure be interested

just put your panels 2s2p (as in, 2 sets of 2 panels in series joined with a Y connector). the max current on them of 5.8amps is not that high and as long as you check to make sure the wire size can handle that current, you should be fine. eg: google "max ampacity <put the size of your wire...

Where did you get them from?

do a video of charging a lifepo battery below freezing show how much below freezing or how high of current you need to go for it to damage the cells

Or, in other words, all those cheap chinese batteries on amazon aren't just a fluke and we should continue seeing cheaper and cheaper batteries into the future. Good for us all.

talks about how battery demand is growing exponentially, and how once more things start using more batteries, they become cheaper to make and so therefore even more things will start using them https://rmi.org/the-rise-of-batteries-in-six-charts-and-not-too-many-numbers

thanks for the reply! yeah, that's why I was thinking: if I'm not going to run into problems from POCO for adding to an existing system, that would be the easiest way to add solar to my house. My next questions if I go down this route will be the technical stuff like "how do I get them talking...

I have an existing enphase system on my roof. I net meter with the POCO 1:1. We use more power now than we used to. I'd like to maybe DIY add solar capacity to it. The existing panels are above the living part of my roof. I was thinking of maybe trying to add panels myself on top of my garage's...

yep, like @sunshine_eggo says, one of your two batteries is hitting it's low voltage cutoff protection. when you said: what charger did you use? was it something that you can verify is charging at 14.4-14.6v? because if it is a charger made for lead acid batteries (like car battery chargers)...

that is correct. that's a lot of amps at 12 volts. that's why it makes sense to up your system voltage to 48v (or at the very least 24 v) at that kind of wattage. then you don't need such beefy and large charge controllers, inverter, and wires

I'm curious: what do you do with them? why are they so useful?

If you're concerned about the low temp protection on the batteries, you could also add a second low temp protection on the PV wire in to the battery. Then you'd have 2 switches that have to be on in order for the battery to charge. so 2 different thermostats have to think it is above freezing...