Loadpro Test Leads Review

[@harveysmith100]

Really good demo. Your resistor reminds me of a drawing a friend showed me to describe how a car heater switch works. That was the first lesson I ever got about resistance. He also used to drill into me that you can't test voltage without a load on it. Now I can really see what he meant. That looks like a really useful tool, I think my limited knowledge of electronics has reached the point where one of those would be very useful. I learned a lot listening to you so thanks very much.

[@ke6bnl]

that was one of the best demonstrations on voltage drop, I have watched a lot. I have a load pro and it resolved some wiring issues I have had. I was working on my starter for my little truck and not sure why I forgot to take the load pro over and it would have been a better quicker test for testing, combination of bad starter and wiring. thanks for the video

[@figibloom]

Thanks I appreciate it. You know one of the best videos I have seen on youtube that deals with starter circuit testing and voltage drop testing in the same video. Just so happens to be by the same guy who invented the load pro tool Dan Sullivan. Here is a link to his video, I use this method when I am diagnosing a starter circuit because it works well. Check out his video kzbin.info/www/bejne/jpm1gX-dfZuokMk Well I hope this info helps you. Thanks for watching and thanks for the comment. Have a good day.

[@eyesalooking]

Thank you for your explanation and demonstration. I have the Loadpro leads and book but I guess I am a visual learner because I didn't really understand it until I saw your demonstration.

[@figibloom]

Thanks for watching!!

[@444gtb]

Thank you AJ for this video. Your review is very informative and helpful. Well done!!!

[@magboul2982]

Thank you for the very informative video about an outstanding tool.

[@figibloom]

magboul eltahir You are welcome, thanks for the comment and have a good day.

[@kiddbrother3]

Excellent video ! good training !! all mechanic should have loadpro & throw away regular probes !!

[@bradshaw106]

Very cool homemade load tester!

[@athena_the_hun1097]

The book is excellent!

[@practicaltactical1336]

Can you test and load fuses? Do you have to remove the (load) ie. a module?

[@trainer2018]

Good job! I use the Loadpro myself. Have been using it since 09. I have made quite a few videos myself on the Loadpro too. You a professional Tech or Diyer?

[@figibloom]

busjockey1 I was an electrician in the coast guard. I worked on motors and controllers, generators, and electrical maintenance, but now I go to school for fun to learn automotive technology.

[@charlieabbot3649]

Edit it down and shorten it up a bit and you've got a home run. Great demo of the tool I just received mine, haven't used it yet.

[@kimpeters9023]

AJ, Hey by watching your review of the load pro , you said you thought there was a resistor in the little red box part of about 25 ohms. Do you think its possible to make your own load pro leads say with what i have is a 33ohm resistor and a push button switch and just wire the resistor into the red/black leads and thru the switch and we would have the same thing as Mr. Sullivans? Do you think the difference of 8 ohms more would hurt a automotive system? Thinking of the computer modules in a car these days? I mean when you load the wire/connector with the button checking for resistance on a car? Let me know what you think? Thanks....great video/review of product also. Tony

[@figibloom]

+Kim peters Yes I suppose you could. I dont think the size of the load is as big a factor as the actual voltage drop measurement across the load. I think that is how the tool works, it is looking for full source voltage to drop across the load, and if there is high resistance in the circuit full voltage will not drop across the load, and you know you have a problem In fact I would think you could use a test light, light bulb, resistor, variable resistor or just about any resistive type load. You can use ohms laws and watts law to calculate everything and figure it out what it would draw and what size wattage resistive load to use. However as you said you would not want to use a load that draws to much current and damages a circuit. The actual circuit is not that hard of a circuit to make. In fact you can go to google patents and look it up by typing in Enhancing voltmeter functionality US 6356853 B1 and you can see the actual patent. However I still believe that you would be better off just buying the leads, because they are a great tool to use. I bought mine used off Ebay and it came with a good book as well. So personally I recommend that route, because i use this tool all the time and I think everybody should use one, and also I give full credit to Mr Sullivan for coming up with this idea. So I think you should just buy his tool (if you want) Well thanks for the comment and have a good day.

[@Steve-zs3vd]

Awesome thanks help out 👍

[@charlieabbot3649]

Good stuff.

[@daveh9907]

Testing an open circuit voltage, a circuit with the "load" disconnected IS a valid test if done correctly. However a fluke meter may not show Ghost voltage, but it can tell you, "open circuit, or short circuit" and with the Loadpro, pressing the button and loading the circuit shows if there is any resistance/corrosion in the circuit. Don't think I'm doing a good job of explaining that.

[@figibloom]

I think I understand the points you are making. The point I am trying to make is this, anytime you check open circuit voltage (load disconnected) You are placing the voltmeter in series with the circuit, which if you read about voltmeters (manufacturer's manual) they specify the meters should be connected to the circuit in parallel (across a load with circuit on) The reason for this is when you place a high impedance meter in series with the circuit, it can and will change the total resistance of the circuit and manipulate voltage drops in the circuit, and can mask hidden high resistances, making you think the circuit is good when in fact it is not. In a series circuit, voltage drops are proportional to the resistance. For example if you have 2 equal resistance loads in a circuit each load will drop the same voltage. However placing a high impedance voltmeter is series, makes all of the voltage drop across the meter and very little voltage drop across the unwanted resistance/corrossion in a circuit. So you check the open circuit with a meter and it shows almost source voltage so you think the circuit is good, and then when you remove the meter and place the original load back in the circuit it does not work. Basically if you think of the meter as a 10megaohm load and any unwanted resistance as another load (just pick a resistance) and do the series circuit ohms law math you can see how high resistance affects voltage drop. I hope that makes sense. Then if you do the same math with a 10 megaohm load (meter) and another load (pick a resistance representing a normal load) This time do the math for a parallel ohms law circuit, and you will see why placing a meter in parallel is the way to go, and not in series, because doing it this way does not affect the circuit, as much. Total resistance of a parallel circuit is lower than the lowest branch, and total resistance of a series circuit is the sum of the resistances. Well I hope this makes sense. Also as far as i know meters that show ghost voltage are the ones that are set on auto range, if the meter does not have an autorange feature I do not think ghost voltage will work. Also if you do place a meter is series and you read source voltage all that means is that you do not have an open in the circuit (you have continuity back to the voltage supply, or have a short as a fault, but as I have shown you can still have high resistance in the circuit, so basically when you press the button on the loadpro you are making a parallel circuit with a 25 ohm resistor and the meter 10megaohm. This would be the same thing as testing the original load left in place and putting the meter across it in parallel, just as the manufacture recommends originally. Well I hope this makes sense. Thanks for the comment and have a good day.

[@bmw-e30]

You are confusing open circuit with system voltage. An open circuit is where there is a break in the circuit so no voltage reading is available..

[@davidm3210]

That error really ruined the whole video for me - I lost confidence in the man after that, pity.

[@loganprice3218]

The meter isn't lying. There is source voltage present and available because there is no current draw in the circuit. Once you add the load, ohms law comes into play and you find your difference.

[@figibloom]

Thanks for watching!

[@aqib2000]

logan price no shit

[@fraudsarentfriends4717]

Why not just use a test light,it does the same thing?