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Apr
11

Connecting a 24v Battery Bank to a 12v 1200w Power Jack GT Inverter

I have a 1200 watt Power jack grid tie inverter. It is intended for a 12v wind/solar setup but it says it needs a minimum of 14 volts and a maximum of 28 volts. My assumption is that a 24…
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I have a pet peeve, and it goes like this: Consumer buys a product that is battery based. When the batteries die, rather than replace the batteries the institution junks the complete UPS system…

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  1. Sexy One25 says:

    well if the code enforcement people get there in time before he blows the
    house up, or the block possibly. He said it himself, he doesnt know what
    he’s doing. Its good that he’s at least asking people who do though.

  2. stanley flanagin says:

    you better not tell your power company your not a certified electrician and
    you done your own work they will come out and you will have to pay a fine
    you have to pay a grid connection fee
    and have a pvolic certified electrican and a solor panel installer to do
    all the work thers a code inforcement law

  3. stanley flanagin says:

    the power company police radaided my back yard because they thought i was
    steeling there electricity

  4. Stephen Denton says:

    Okay you are pretty close the batteries are the heart of your solar
    everything will run on batteries. the charge controller will charge your
    batteries. if you make a 24v battery bank you will need a 24v charge
    controller in order to charge 24 volts you will need 130% of 24 volts.

    around 28 volts to charge

    Car batteries not that great for solar tho you will not get much use out of
    then due to not being able to discharge more then 15-20 times. If the
    battery has a CCA – Cold Cranking amps dont use it. Y? because they are
    used for alot of amperage all at once and then to complete a circuit. you
    want a battery that has a Amp hour rating. most are 75 amps / 180-320 hours

    other than that it looks okay 

  5. stanley flanagin says:

    20 x 300 watt reginna solor panels will produce 28 amps connecting threw
    a dueal pole braker and wired directly to your power braker box and will
    produse 10.000 kw hour a day
    i used about 300 kw a hr

  6. Michael Persico says:

    bad idea wire all parallel leave it 12 volts hook up 12 volt charger make
    sure you have right amount of amps or you will burn it up

  7. stanley flanagin says:

    and when the internal switch in the inverter see;s 120 volts it starts
    produceing electricity from your solar panels

  8. stanley flanagin says:

    i found this out when my electric bill was showing a negitive bill all the
    time so they started estamatting my utility bill

  9. stanley flanagin says:

    and was fixen to take me to the cleaners threw there judicial system

  10. TheCip1977 says:

    Your inverter works beetwen 14-28v , so yes technicaly you can hook up the
    bateries to the inverter ; in the very next moment when you’ll start the
    inverter the voltage will drop a bit so you won’t have 24v anymore but
    because of the fully charge bateries, they are able to supply high
    amperage for a period of time , that amperage , if is sustained for as much
    as the bateries can , will heat up your inverter and that will cause a very
    big wear of the inverter and possible to burn it out ( unless you make a
    REAL GOOD cooling device for it because the HEAT is what will actualy
    distroy the inverter not the amperage );also you must check before you do
    this the maximum amp which inverter can manage ; is pointless to charge it
    as much as it says on its labels so if you install a amp reductor between
    the bateries and inverter to stay somewhere at 60% of its peak you can do
    that until you will drain the bateries and won’t be any problem in this
    way you can go ahead .
    About the second question : yes you can but nothing will happen , it
    won’t charge anything 

  11. stanley flanagin says:

    with grid tie inverters we dont need a battery bank you just use solar
    panels that connect to your inverter and pluge your inverter into your wall
    socket

  12. Elliot Hunt says:

    You cant charge half the bank becuse it would get unbalanced. I guess the
    inverter would take 24v thogh

  13. Bruce Baumgartner says:

    the power jack I got was bad out of box and I can not get them to fix or
    replace. I would buy an other brand. I would not buy power jack. buy an
    other brand if they do not fix bad out of box good luck getting service
    later. I would not buy power jack and look out sold under other name look
    and the case and stay a way!

  14. stanley flanagin says:

    and they posted a stop work order on my front door

  15. stanley flanagin says:

    one other thing to mention that it dosnt effect your 220 volt side of your
    electricity so when you use 220 volts your meter will spine in the normal
    direction also they installed a smart meter on my house and after that my
    meter wont run backwards
    thats why the electric companys wont you to switch to smart meters they are
    prepairing for the upcomming battle with people installing solar panels
    and not useing there electricity so were screwed

  16. The Guy That Does Everything Wrong says:

    Kricotas, don’t put a 12v inverter on that 24v supply. Either get a 24v
    inverter or you can try a 24v DC to 12v DC step down transformer.

  17. kricotas says:

    question? im going to install a wind turbine 650 watts is for 24v but my
    power inverter is 12v shuld i buy a 24 v inverter? or how can i converter
    the out put 24v to 12v input?

  18. Prancinglion1 says:

    Sooo…. What happened to your 1200Watt inverter after you hooked it up to
    the 24V battery bank? My little 360Watt Chi-com inverter gave up the ghost
    after one year, only running 200Watts Max. Very interested in how your
    1200Watt made out B4 I buy one.

  19. mustwhatch says:

    wow to ll of the other comments 1st if the bat pack is all hooked together
    at 24v then ur battt charger will only charge a 12v threw out all 4 batts u
    should hook up all 4 batts to get 12v this will put less strain on inverter
    and u will have a longer run time. .and u should set the batts on wood or
    in a container concret is bad for batts it kills the cells over time

  20. Rick Laviolette says:

    If the inverter drops below 14 volts, it shuts off. this would inherently
    protect the system.

  21. onceANexile says:

    To charge a 12 volt battery, you have to have 14.04 volts input. Just like
    your car, or truck!

  22. aron john says:

    you should probably move that bike out of the way……

  23. islaguy100 says:

    i would say yes to hooking 24 volts to your 14 to 28 vold grid tie
    inverter. i had a 300 watt power jack i would drain batterys with, it
    lasted me a year running it about 3 times a week like that. i thought it
    would blow out way before. it always a risk you’ll blow something out in
    it, and it is made in china. as for the charge controller, i would think
    that it would not work. the charge controller would see the battery as full
    and either dump or close the charge connection.

  24. Leon Evans says:

    And yes you can charge one set of the batteries, the ones in parallel, and
    then the other set, but darn, why not set the system up as just 12 volts?
    As close as you have the batteries to the inverter, and with small gauge
    wire, you will not have any losses. Otherwise perhaps you could set your
    solar panels up in series to produce 24 volts. Anyway, good luck.

  25. lulu mnl says:

    Hi, I think its a no normal condition, but its a good solution.For example,
    first a wind turbine charge the bank of batteries, and then only for 1/2h
    at day inject the current of batteries to grid with a GTI.This is a good
    idea if you don’t want make another paralel electrical installation.

  26. KyleCarrington says:

    I purposely chose a box that would fit a 24 series deep cycle, and in the
    meantime I’ll burn out these SLA’s cause they are free. If you find a case
    that’s big enough for 2 6’s, well, you can get your name in at local golf
    courses, they give up on bats in the spring, sulphated over the winter.
    They, as a pair, are heavy though!

  27. slider2732 says:

    Very valid rant in the description and a fascinating RV project..learned a
    lot 🙂 Re PCB’s: The leftover PCB’s are flat and on some units quite the
    size. Can take any remaining actual junk parts off with a good strong saw.
    One use is for projects box build material, shed roof repair strengthening,
    stuff like that. Sheets of fiberglass in a way.

  28. KyleCarrington says:

    I think with 4 x 7ah I could possibly get one movie in. On this setup,
    anyway. If you have a small portable DVD/screen combo – it’s a sinch.

  29. Mike Miller says:

    Thank you very much. Great info on many topics and resources.

  30. KyleCarrington says:

    The reason joule ringer and joule thief look better, on a meter, is the
    meter is lying in regards to the input, it is a triangular wave, ramped
    input which cannot be read properly with even an RMS meter, because A. the
    frequency of the input is high enough that the upper harmonics of that
    frequency become “out of range” of the meter. Therefore, the meter design
    to look at either linear DC, or 50-60 Hz AC, is fed high frequency pulsed
    DC in a triangular form. They simply lie, this I have proved.

  31. KyleCarrington says:

    cool tips, thanks, about to do a video on that oscillator you sent me, it
    truly is an amazing little rig, the one that is “human powered” – very nice
    work Mark.

  32. KyleCarrington says:

    Cheers man! Look up “Luminous efficacy” on wiki, great explanation. One
    also has to consider the source. If your source is solar, and you stick
    with straight DC – LEDs CAN win, if the argument is no conversion + life
    expectancy. If you are running a lamp “on grid” though, the opposite holds
    true as you need to convert to DC. Best way to run LEDs is either a
    constant potential / constant current switching mode circuit – beats any
    joule ringer / joule thief hands down.

  33. Magneticitist says:

    I want to make one of those battery banks in a case with an attached mini
    inverter so i can watch tv and stuff in outages lol. I wonder if i could
    get by with 3 or 4 of those small 7ah SLAs, or if just a decent deep cycle
    is better.

  34. MrAnguswangus says:

    Thanks for the info on lumens and leds. I didn’t know that, but, once I
    think about it….it makes sense….I think…lol. Great vid as always!

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