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  • Post in thread: Adding more panels to my existing system

    They were right if they meant that if you put too many panels in series and go above the open current voltage your mppt can handle, you’d fry it. But going over amps from panels in parallel is not a problem
  • Post in thread: 12v or 24v ?

    If your inverter puts out a max of 600w then you only need 12v. Actually, if you already have your inverter, then it's decided for you: Use whatever voltage that inverter is (I'm guessing it's 12v if it's 600w) also, you are confusing "watts" with "watt hours". watts is a measure of power at a...
  • Post in thread: Will the Mpp 2424 AIO inverter charge while off?

    yes, the solar mppt charger will continue to work as long as there is sun on the panels even if the inverter is turned off
  • Post in thread: Santan solar deal

    How much was shipping? I’m curious what your final to your door price was
  • Post in thread: Reasons to stick with 12v?

    definitely the fan noise. Sometimes I joke that maybe I'm borderline autistic because any white noises drive me nuts. also, the increased complexity of a 24v system. by the time I had to buy a 24v to 12v buck converter and stuff, it probably didn't save me any money. And I lose some efficiency...
  • Post in thread: 2024 YouTube Video Ideas

    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
  • Post in thread: I have some 10/3, can I use it for both the AC in AND out of an AIO

    ya I did basically the same thing. although I also got this 24v to 12v buck converter to run the 12v stuff and I have the breaker for the converter turned off. I did this because I didn't like hearing the noise of the fans when I just needed 12v stuff. by using that 24-to-12 converter I can run...
  • Post in thread: "Like New" LiTime 12V 100AH LeFePo4... drained to 7.9V -- BMS issue! ???

    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)...
  • Post in thread: Li Time - "after market" low temperature protection option?

    I am in a very similar boat. already have 2x LiTime 12v 100ah that I am putting in series to make a 24v pack. they don't have built in low temp sensor. I also went with a MPP pip-2024lv-mk AIO (https://watts247.com/product/pip-2024lv-mk/) , and that doesn't have a temp sensor either so what I...
  • Post in thread: Voltage rise vs. temp drop help me understand

    that's right. i would not run 3 of them in series on that 100v charge controller. you'd be fine with 2 in series though
  • Post in thread: Santan solar deal

    that's pretty good! 17 cents a watt shipped $1930 / (365w * 31) = 0.17
  • Post in thread: Reasons to stick with 12v?

    I'll chime in to say that I just got done with a project where I put a 24v system in my 24ft travel trailer. I mainly went 24v because I saw this MPP pip-2024lv-mk and thought it would be a good deal and cheaper and simpler than buying all the MPPT, charger, and inverter separately. so I started...
  • Post in thread: Reasons to stick with 12v?

    ...If I did that, I'd still want the inverter hooked up where the main shore power comes in so it could power all my 120v circuits so I'd use a manual transfer switch like this to replace the automatic transfer switch that the all in one unit has
  • Post in thread: Want To Build Small Inexpensive System

    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
  • Post in thread: I have some 10/3, can I use it for both the AC in AND out of an AIO

    I am wiring up an MPP PIP 2024 LV-MK All-in-One unit in my Surveyor Legend Travel trailer. I am planning on diverting the AC power in from shore power directly into the all-in-one and then connecting the output of the all-in-one into where the shore power came into the main AC breaker box of the...
  • Post in thread: My hot tub uses 49% of my electricity per month...lets fix that.

    yes please do! I would be very interested to see how that goes for you and what your final setup looks like
  • Post in thread: Trouble Charging LiTime TM Batteries

    I'm have the same and am curious to see if anyone has any answers for you. one specific thing that I have wondered is what if I bought just 1 LiTime with low temp protection and put that in series with another liTime without it? would the low temp protection on the one protect both in series?
  • Post in thread: I have some 10/3, can I use it for both the AC in AND out of an AIO

    Perfect. Exactly the kind of info I was looking for. Will use seperate 10/2 with ground wires. Thank you! I took this picture of the ac input circuit breaker. It says 40A. Does that mean anything to you? Or do I need to take the cover off the main part of the unit to see something else?
  • Post in thread: Looking for a 24v all in one inverter

    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...
  • Post in thread: PV overvoltage alarm fault question (eco-worthy)

    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...
  • Post in thread: how would one test different configurations of panels to find which gives best results?

    wasn't my link but I just tried it and manually removed the tree "..." at the end and it worked https://www.amazon.com/gp/product/B09Y1NQXK2
  • Post in thread: Hi, need some advice on a all in one AIO for my van conversion system please

    Do you or anyone else have a link to to that? I just tried to search for it but couldn’t find it
  • Post in thread: 12v or 24v ?

    no, it is 200 watt hours used. Because when you are talking about the amount of energy used over a period of time, the unit is watt hours no, it is 800 watt hours used. you're still getting watts and watt hours confused. I'd google https://www.google.com/search?q=watts+vs+watt+hours
  • Post in thread: 24K BTU EG4 solar mini-split sizing questions

    oh yeah? got a link to the one you are ordering? I'd like to do the same
  • Post in thread: Lifepo4 cold temp question

    yes, you need to either add some kind of low temp protection or heating if you're going to charge them below freezing. the simplest thing to do, if you got it from amazon and are still within the return window, would be to take it back and get the one with low temp protection. if you can't do...
  • Post in thread: what kind of permits would I need to add to enphase system?

    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...
  • Post in thread: Can you trust the low temp cutoff in EG4 LL?

    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...
  • Post in thread: 24K BTU EG4 solar mini-split sizing questions

    thank you! what website did you get that from? sorry, I may be dumb, all I see is a screenshot
  • Post in thread: what kind of permits would I need to add to enphase system?

    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...
  • Post in thread: Reasons to stick with 12v?

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