What can run on an inverter and for how long?

Published 2014-09-17
I watch lots of Youtube videos where people ask if they can run one thing or another run on an inverter, so I thought I would make a video about what you can run and how much power it will actually use. There are alot of variables in inverters regarding size, voltage, and battery banks, but I try to keep it pretty basic.

All Comments (21)
  • @aeservices6574
    IS THERE ANY WAY i COULD GET A COPY OF THAT SPREADSHEET? iF SO YOU COULD EMAIL OR POST IT SOMEWHERE i COULD ACCESS. i WOULD VERY MUCH APPRECIATE IT
  • @PeacefulKnight
    Thank you so much for the break down! I'm wanting to get an inverter to charge my 18v cordless batteries and also be able to run a 19" portable monitor and gaming system in between customer appointments. This was a huge help in understanding expected battery life.
  • thank you,you have been only person i have found really breaks it down.very useful keep up good work
  • @TonyGingrich
    Very good video! I think the only thing I would add is the fact that many 120V appliances will actually consume more power from a square-wave source than from a sine. This is due to the electro-mechanical inductive principles exploited from the current. In short, for appliances using induction motors, you can actually safely off (I'm guessing) at least 5% of the inverter's exchange.
  • @random4969
    BIGGGGG HELP this rough guide is INVALUABLE thanks mate :)
  • @TheKW1330
    Have a dual battery system want to power a vacuum for service truck 120volts at 11 amps using this during the day for about 1hr at most will I be ok with 2000 watt inverter or should I get battery bank
  • @junkmale1365
    Do you consider the efficiency of the series configurations for 24v and 48v to outweigh the failsafe of parallel in 12v? Example, in 12v where all batteries are parallel, if one battery becomes inoperable you lose that batt's ah but you can still operate normally otherwise. Conversely, when they are all in series and one battery fails, your system is down until a replacement is made. You could have a 12v to 110/120v inverter on hand and do a quick reconfiguration of your bank in this case I suppose. Just seems more inconvenient than only replacing the bad battery in the parallel configuration. Your thoughts? I know you could do a series-parallel setup with the 24v and 48v systems that would have the same failsafe as the all parallel 12v system but that would require double the batteries = $$.
  • @SilentDeath002
    I hear ya buddy. I guess your best input time will be from 11:00 to about 1:00. if you get a chance find a few regular panels to add into the mix and see how the input might change, I was in total over cast conditions all day, and those panels still went into absorb then float for most of the day, I was really impressed so far. still wiring in the sub panel before I fire up the inverter, if you hear a really loud BOOM!  it wasn't me lol
  • @wehmeyer875
    Thanks it helps me a lot thanks 👍 I live in South Africa
  • @NASANYC
    Thanks! Would you have the formulas used for this spreadsheet? I would like to make this , it’s a great sheet to help figure it out
  • @nef003
    Excellent.. we’ll explained and easy to follow. Thanks!
  • I was showing my friend my van videos and you were in the recommended videos on my Vizio in van video LOL
  • @joesgrows6662
    Hi great video I'm wonding how to find out how many watt solar system I would need to run about 300 watts for 18 hours a day
  • This really helped Me! I’m installing a small off grid 12 v solar system in my house just for emergency back up until power is restored. I have a 3000 wt inverter. My question has always been. Ok so how long will it take an inverter to run my battery down or keep power going? No one seems to answer that question, so I was glad to see you made this video.
  • @junkmale1365
    Are you accounting for the fact that when identical batteries are in parallel the volts stay same but amps increase for each battery added and when you connect them in series the volts increase but the amps available stay same no matter how many batteries you add. Simply connecting 4 12v batteries in series to get 48v will not double run time of system. Since you have a fourth of the amps you would have if they were in parallel. The only way you can significantly increase the run time is increase the size of the battery bank. While your system may decrease the amp draw, the battery arrangement required decreases the amp pool equally. So, while your arrangement may decrease the size wires needed it is not increasing the run time available. Example 4 100ah batteries in parallel = 400ah @ 12v. So a 100a draw = 4 hrs run time. If the same batteries are in series-parallel to get 24v you have 200ah and if it allows the draw to drop to 50a it still equals 4 hrs. Again, if the same batteries are in parallel for 48v you have 100ah and if it allows the draw to drop to 25a you still have 4 hrs of run time. So, unless you are adding to your bank you are only making the system run more efficiently, which may be adding a small amount of run time, but in no way are you doubling your run time just by changing the configuration of a set number of batteries. Volts and amps are on a see-saw. When one goes up, the other goes down. We have to play by the rules. Remember, things always look great on paper.
  • @jma8352
    thanks! so im setting up 4 6v golf cart batteries in series to get 24volt with 5 100 watt solar panelsdose that sound right? im thinking for power tools short run time. i know if i double the storage it would be better but most of the expense