Inverter Install In A Semi, DIY Install, Step By Step Guide, How To

[@rvd4lyfe]

With a accent like that you know you’re in the right place for a DIY

[@SeeSaw99]

This video is aging well my friend. This is just what I needed.

[@Montoya1991]

Thanks man. I always thought this was way too complicated for me to do but im confident i can now

[@ThunderingDiesel]

Did u do it? I know I can but I’m just scared of it catching on fire or getting shocked , I got a 2500 watt and also the cables are t long enough , I’m using the inverter that plugs into the car charging port for my tv and had another one for my ps4 and it stopped working

[@scottpearsontoolsmore185]

Great video thanks my friend. I guess I'm old school on this. I was told never solder battery cables just crimp them. I put one in a Petercar sleeper closet there was a plastic grommet. I put the hole in it and ran my wires out red to the battery and ground to the frame in one of the extra holes not far away plenty of slack like you said for the movement of the cab and bunk worked out great. Thanks for the great video my friend keep up the great work

[@richardmarshall7741]

Should use hever ga. Wire and crimp or clamp connector s to handle the heat and amperage you will receive to maintain your proper voltage with the least amount of stran on the battery. I used 0-cable had the ends crimped on at the parts store and a 30 Amp automotive bracker in the pos. Battery cable in for years no trouble

[@jonathankuhn2180]

Do you use a fuse too or just the breaker? Isn't 30 amp too low for a normal 12v car battery?

[@miamiflorida2043]

Thanks, bro! I feel like a true professional.

[@mikeg1707]

Me: looking for instructions on anything trucker related Guy in the video look at how cool my set up is

[@azazhag89]

Lol. The most important par was skipped 😂😂😂

[@KoonTrucking]

If you can’t figure that out you need to take it to a shop red goes to plus black to negative pretty simple if you ask me and fuse size depends on your inverter and what the manufacture recommends. If We would have listed a fuse size and you install a bigger inverter then you would sue me, plain and simple

[@Victorio-f9y]

What do you mean

[@adolforodriguez8041]

​@@Victorio-f9yOP didnt show conmecting it to the battery, but OP said its for a reason

[@jayprichard2024]

​@KoonTrucking well no they wouldn't. Thats absurd. Learn how to internet big guy. Also, you could simply say "fuse size depends on inverter size." Stop propagating that myth.

[@highwaysandhorizons2687]

Hi Koon, I am installing a 3000 watt inverter in my KW this weekend. What size fuze did you use for your setup? Does the fuze need to be adjusted based on the wattage of the inverter? Thanks!

[@Ludacris0912]

150 watt fuse

[@Contextual_Christian_Church]

@@Ludacris0912 for 3000 you need 300 amp... 150 will cause a trip bc it's not large enough for a 3000

[@Ludacris0912]

@@Contextual_Christian_Church thank you! I’m glad you said something I’m installing mine today with 1/0 wag wire. I will get the 300 amp fuse today.

[@Contextual_Christian_Church]

@@Ludacris0912 but make sure your wire size is 4/0 or 0000 or the circuit breaker will keep tripping as well

[@Ludacris0912]

@@Contextual_Christian_Church I have the 1 gauge installgear power and ground wire it’s 5/8 in thick

[@grintechnology9643]

I have a new battery setup. 2 cell sets and it seems like I can't get enough juice out of my inverter. I plugged the positive and negative at opposite ends of 1 cell. Kept dieing (batteries are brand new) I put the positive and negative on complete opposites of both cells and still not enough juice. What am I doing wrong? It worked just fine with absolutely no problems before I replaced the batteries. Afterwards I can't get my crock pot cooking anymore...

[@Blood0ftyrants]

I have the same inverter it's showing 11 volts the loves messed up the wires I think both of the inverter cables are going to different batteries. Help on what the problem might be?

[@charlieclark-walton3983]

Did you pull from one battery? Like one pos on a battery then negative on a different battery?

[@KoonTrucking]

You can or do it from same battery it doesn’t matter. Hot is hot and ground is ground

[@charlieclark-walton3983]

@@KoonTrucking I have a 2000w inverter thinking about installing did you need to use an amp? Or no? It’s a power drive 2000w from the truck stop

[@xxkornmetalxx]

Do the wires have to be connected to one battery or do you connect the positive on a terminal of one battery and the negative on a terminal of another battery?

[@KoonTrucking]

One hooks to positive and one to negative. It doesn’t matter if it’s same battery or separate ones

[@xxkornmetalxx]

@@KoonTrucking thank you very much.

[@billyg.1212]

I wish you could have explained how you hook the wiring up to your batteries. To get the most life out of them. At least showed a diagram for those that may not know how the hook it up properly without burning up the inverter.

[@KoonTrucking]

Billy G. The copper lugs I put on the red and black cable just go under your battery nuts red to positive and black to negative side.

[@berniesands6201]

What size fuze do I need to use on a 3000watt pure sine inverter with 0gauge wire?

[@Wilkhustle23]

Hello Question . I just installed mine ( power drive 3000). But I ran the ground from a bolt under the bed . It’s working . But saying low voltage when I plug thing to it . Weird thing that even with the truck on runs into low voltage. Truck is fine though. only running a fan , tv , ps5 . I have a feeling I need to run ground off the battery . Ground to the batter a must ?

[@Wilkhustle23]

Also running 2 gauge cable think

[@KoonTrucking]

Yes running off battery is best. If you have a heavy load it may over load the 2 gauge

[@Wilkhustle23]

My red cable is 2/0 and the negative is 2awg ( the one that came with the unit) also where I connected the ground to the bolt under the bed might not be a good ground.🤦🏾‍♂️

[@Wilkhustle23]

What got me confused even with the truck on it drops to 11v if I turn on tv n Ps5 . If I turn on my fan and led lights only it still drops . I’m going to check my Connetions

[@russwillknot]

Something strange just happened! I was literally just listening to that Someday Baby song at the beginning of your video and have been for the last few days (random Pandora song). Also I've been trying to figure out how to wire something like this in the bed of my truck for the past few days. Just thought that was odd and cool. Good day Sir

[@KoonTrucking]

That’s awesome ! Haha strange how things work

[@raysquires17]

R L Burnside was a badass

[@adventuresofperseus945]

How much does this usually cost to have installed?

[@georgesaucedo8742]

It would be helpful if you show what kind of fuse you used

[@KoonTrucking]

Just a regular inline fuse that fits 4 gauge wire

[@alfredoortiz8420]

Can this just be wired to the battery in the car?? I saw 4 batteries and no mention as to why. So this tells me your using a secondary battery supply. Please, more information

[@KoonTrucking]

Big trucks run multiple batteries that’s why there’s more. You can hook it to one battery alone but it will kill it pretty quick pulling a load

[@hustlemoney505]

For whatever reason my truck have two red and two black wires any reason behind that

[@grintechnology9643]

New battery cell setup. Me too. Can't get enough power out of them

[@lazaromartinez2076]

Do you have to run a ground wire?

[@KoonTrucking]

Nope just positive and negative

[@braddalton9260]

Should give a list of what tools and parts needed fuze size ect the fuse holder don't look like it would be big enough to run microwave or anything that much of a draw I put a 300 amp circuit breaker in for my fuse and it trips after running microwave for about 1 min same inverter and the circuit breaker is for that inverter same brand to not sure why it trips it works fine with fan or lower drawing things and if looking for large fuses I found radio shack and any radio install places carry fuse block and large fuses the connector are gold and seem to hold up well in elements

[@randaljohnson8048]

I install my 1000 power drive hooked up everything put a block fuse breaker between the red side.and that small ground wire on that rod to hold the battery down.i don't have power to the inverter.

[@robrichdale114]

Have you had any issues with the # 4 wire and getting hot? Being that long

[@KoonTrucking]

Rob Richdale no issues yet it’s about 6’ Long probably ? Our guys use them heck out of them too running microwaves and televisions.

[@allenmarvetsthewildbuck3205]

So mine was working fine until my truck went into the shop for a new clutch and now i redone the cables and redid the connectors and put tape on the ends but now it dont turn on until i hold the back of the inverter to the metal base of the bed and i hear it short but it will turn on but doesnt work as soon as i leave the wall which is weird.. My stuff worked well before the shop now it does this and i was thinking maybe its the inverter or the mechanic hooked it up wrong in the battery terminal

[@KoonTrucking]

Probably a ground issue

[@cricketlongjump7148]

What would cause a inverter to beep alarm. Often. Have mine hooked straight to batteries shows full power but the alarm will still go off

[@kofimrech3622]

Low batterys

[@grintechnology9643]

I get the same response. Brand new batteries. I think Im not putting them on the right points or the inverter is crap.

[@ismaelguerrero3585]

What size fuse did you use

[@gregburnett1939]

I’d like to know that too

[@momentumtintdetail]

What’s that big ole ring from Clay?

[@bryanvillanueva8035]

Can the inverter kill the battery life of the truck when the trucks not running? Does the truck have to be running only?

[@KoonTrucking]

No it can run off the battery it just drains them. I wouldn’t recommend using them for a long time because then you won’t have enough juice for your truck to start

[@hellyeah9398]

Does this kinda of work void a warranty?

[@dhj.feb7953]

I thought it just plugged into the cigarette lighter thank you for this video

[@tbrown3402]

What size inverter should I get for mini fridge?

[@ChicoTooCold]

I’m otr and just recently started. Do I really need all the tools you used? Does a loves provide the right size hoses? I’m kinda afraid to do it myself out of fear of setting my truck on fire 😂.

[@Coronado-nz7wu]

Just use the appropriate sized fuse or circuit breaker as close to the battery connection as possible and you’ll be fine.

[@March808]

Can you hook up a mini fridge and leave it plugged in overnight while on the road with this type of setup???

[@KoonTrucking]

March Transportation yes my guys do it all the time. Most leave them running over the weekend.

[@March808]

That’s great my other question now is if my Columbia running on only 3 battery’s can handle the load or if I should through another 1 in there?

[@KoonTrucking]

March Transportation you should be just fine. You may not be able to leave a fridge on over the weekend but over night it should be just fine.

[@billyg.1212]

March Transportation yes you can hook up a mini fridge. I have one in my Cascadia you just have to pay attention to your voltage drop cuz you're using those truck batteries. My suggestion would be to get to 6 volt golf cart batteries hook them up in series can isolator switch so you can isolate them from the main batteries when you need to use them and they'll still be able to charge when the truck is running but will not drain your main truck batteries

[@littlefellatrucking324]

Should of showed the “hard part”

[@KoonTrucking]

Hard Part? What is that ? The running of the wires ? Not sure what you are talking about

[@JuanGonzalez-lf8nm]

What a Waste of time

[@PryorExpressLLC]

Nice job the only thing I do like having it to where I plug my truck in to my portable generator or a cord when at home while parked for more than 10 hours

[@strubies]

Can you plug up a generator to this Inverter to charge your batteries?

[@pep5772]

@@strubies Get you a battery charger.

[@bredwhite6786]

Love how you cut parts out the video. Real informative 😂

[@KoonTrucking]

If the parts I omitted keeps you from installing a power inverter then you most definitely do not need to attempt the install on your own.

[@alexforeri]

No ground wire?

[@joeramirez5537]

What’s the fuse for I’m asking because I’m trying to connect a power invader in my truck

[@KoonTrucking]

Fuses all depend on the size of the inverter so refer to owners manual to see what size fuses they recommend

[@swifty9021]

there’s not an issue going from a small gauge wire from the fuse holder?

[@hollywoodkid9195]

Isn’t the inverter suppose to be grounded to the chassis???

[@KoonTrucking]

You realize that the negative battery is hooked to the ground / chassis right

[@hollywoodkid9195]

@@KoonTrucking I see. So then the only thing I need is the fuse between the battery and inverter??

[@TheMetalBison]

Could I use one of these to run a portable ac instead of using my trucks ac system?

[@KoonTrucking]

You could if you had a big enough one but it would eat the battery really fast.

[@ModernMessiah]

Get a small generator. Preferably one that uses very little gas. You can find them on Amazon, not in stores.

[@TheMetalBison]

Koon Trucking I would run it while running the truck. My fld 120 just doesn’t cool very good. I don’t idle over night. I’m local so I’m home every night.

[@can-wj5ji]

Good job i prefer to use 0 gage wire just for that heat issue . And we'll the besting you get for your cooking area is a cook top it uses amazingly lol power and if.you pick up the pan.your.cooking with you can touch the cook top with.your hand and it wont burn your hands

[@Xrnaldo]

Is this hard on alternator? When Im using the air fryer I’m noticing it lowers my volts after use.. any thoughts?

[@KoonTrucking]

It’s pulling a lot of amps probably that’s why you see the voltage dropping.

[@patrickmitchell8056]

Any precautions I need to take not having a battery disconnect switch on my truck?

[@KoonTrucking]

No just make sure that you fuse it at the battery so if something happens it pops the fuse instead of shorting battery to ground

[@nahumalvarado]

I would just recommend to install first the terminals in the inverter, that way you don't risk to having a hot wire touching any bare metal that could be a ground.

[@jojoekwakwa7865]

What happened to ground wire

[@everetteorebough5273]

I find it works best to hold the end in vice feed the sodder in the brass Part keep it hot then push the cable into it.then take a heavy duty. Punch and. Punch it hard that locks it tight . I have used just a heavy Dot . Punch you can't pull them out

[@carlinoninocarlinonino8164]

Hello, how much do you charge me to install one?

[@BWord-kq4et]

Did you decide to not install the ground wire? I see the negative and the positive but not the middle ground.

[@KoonTrucking]

It is just tied to the body of the inverter that is grounded

[@NewLevelAuto]

Very nice neat job . Keep them videos coming

[@robotvacuum1957]

Good job koon! I have 1 like that in 1 of my trucks, awesome inverter.

[@NEXTDIRECTIONSTUDIOS]

How much for the whole setup

[@nonyabisnas]

What kind of fuse did u use?

[@MOVAGO1995]

Can you share the part number or name for the fuse you used

[@TempoMemphis]

Do you need a kill switch?

[@KoonTrucking]

No

[@jacknife7575]

No ground wire needed?

[@KoonTrucking]

The ground wire is the black wire

[@cecilia3chan]

What size fuse did you put on the inline?

[@KoonTrucking]

All depends on the wire size you elect to run and the watts of the inverter. There’s conversion charts to look online. Also should show in the book with investors. Watts vs Amps etc to figure it out.

[@danieljamesfields37]

I was hoping he showed with battery post to put it on

[@KoonTrucking]

nwordjones37 red + / black -

[@walt2162]

@@KoonTrucking yes but the end that you soldered on looks to be too small. Did you just loosen the neg terminal, slide the connector underneath and re tighten? Did you just connect it to the one battery? If so, does it share the amps of all 4 batteries so that the inverter lasts longer?

[@raulduran9204]

I installed mine without a fuse. Can it cause a problem ?

[@KoonTrucking]

If the hot wore shorts to ground it will cause a fire or blow up the battery ? It will look like someone welding until something else goes up in smoke

[@nonyabisnas]

@@KoonTrucking what fuse did u use?

[@jdftwo1]

I hear 0 awg wire is best to use

[@erika14024]

Could you take it to a mechanic or electrician? I would be terrified to do this myself. Just starting off and very curious on who I would need help from 😅

[@KoonTrucking]

Mechanic can hook you up

[@mr.skeptical3071]

What size fuse?

[@KoonTrucking]

Fuse size will depend on the manufacture recommendations depending on how big of a power inverter and how many watts it pulls and designed to handle. We didn’t discuss that because of liability issues. If we set up a 1500 watt and state a fuse size someone may install a 3000 watt and have issues. Just not worth the liability. If someone can’t read the instructions or recommendations the maker of the inverter recommends then it’s on them and they shouldn’t be attempting this install

[@drumgodtim]

That heat shrink stuff is cool!

[@KoonTrucking]

+Tim Jackson thanks ! It sure does help things out a lot ! Looks neater also

[@realistmw]

No flux? Soder

[@johnhickssr5386]

I bought a PD3000 and called tech support with questions. I have worked on cars for close to 30 years. Ground is Ground but tech support informs me I must run the ground to the battery. The battery is grounded to the frame and engine block, I wanted to run the ground from the inverter to the closest frame hole. Also they state the inverter should be mounted horizontally not vertically. There reason is that it is less likely a cord plugged into it will come loose. What are your thoughts? FYI I will be putting it in a class c motorhome about 12 feet of wire from the coach battery. I was told to use aught 3 wire.

[@KoonTrucking]

I always run both to the battery both hot and ground. The green wire that is supplied out of the back of the inverter (common) I ground that to the frame rail. I have always mounted mine horizontal to keep dirt and carpet from the fan ? Just the way we usually do it. In this truck it had no carpet and was a vinyl floor and driver wanted it vertical so we mounted it that way for him.

[@johnnygoins2166]

What about that ground screw ?

[@Genztrucking]

That’s my question too. I used same inverter and hooked a ground wire in but then the inverter wanted to catch on fire. Maybe I should try without ground wire

[@zaidchalabi1599]

dude no disrespect but this by no means a step by step. so many things you could have explained and showed like what kid of fuse ,how to put fuse, how you moved the wire around, making the hole thing. could have been much better

[@KoonTrucking]

If you can’t install one from watching this video then you certainly shouldn’t be trying to install one. It’s pretty self explanatory on how it’s done

[@zaidchalabi1599]

@@KoonTrucking i think you could have done it a lot better... thats all i’m saying

[@KoonTrucking]

I will not give advice on fuse size because some people don’t have enough sense to know a 1500 watt, 3000 watt or 5000 watt inverter requires different size fuses and depending on the application how they should fuse it. Too many people are happy to sue for something and if you can’t figure out what you need then people should take it to someone but we showed the instal process well enough for anyone to install an inverter

[@zaidchalabi1599]

@@KoonTrucking fair enough!

[@ElMugroso88]

Hi , good video , the cable gauge #4 it's good for inverter of 2000 watts I need it for my microwave of 700 watts

[@Peaches4779]

Where would you buy these cables from? I wanna try and do this on a 2000 watt inverter. Idk how much a shop costs to do it and i know i need bigger cables to avoid a fire

[@iLLMagnifi]

Yea imma just pay one of the shop folks to put it in for me 😂 but cool vid

[@dayofleo8550]

Where’s the fuse ?

[@loudpsx4668]

When you use tools the average person will NEVER have immediately I set to never recommend 💯

[@krofft49]

Nice vid have u ever tried the solder pellets man there cool. Keep up the good work!

[@KoonTrucking]

Chris Krofft I actually used them on the hot wire. I should have included it. I had them but forgot about them when I did the ground side. They are much faster and easier. Thanks for the comment and thanks for watching.

[@PGARRISON1]

Great Video keep them coming,

[@Arbotm]

Do you hook the 3k up to 24 or 12v setup

[@KoonTrucking]

All 12 volt

[@Arbotm]

@@KoonTrucking I meant does it matter the terminal locations? First last battery in series positive on one and negative on another (24v) etc

[@KoonTrucking]

We always hook it to the closet battery to save on cable length. We hook it on same battery

[@walt2162]

@@Arbotm I think the batteries are run in parallel, not in series.

[@nomadben]

@@walt2162 That is correct

[@yacyuuzi]

Well damn, thank you

[@67JD110]

Great video thanks for sharing! Would 5 feet of cable be enough to reach the battery?

[@KoonTrucking]

Just depends on how far away your batteries are from where you want to mount it. I think 5 ft would be too short ?

[@farmerjoe338]

You did a big no no when wiring .. The fusible link wire connecting to the battery is a higher gauge wire ( smaller diameter) that is a big no no . When wiring you can go from low gauge to high gauge ( larger diameter to smaller diameter) but not the other way around . Wiring it the way you did will cause excessive heat on the fusible link wire because it’s AMP rating is not high enough . In turn this could cause a fire 🔥 or burn up the inverter pre maturely.

[@razedonradio969]

That's what I was thinking also. I came across this video because I'm wanting to fuse my inverter at the battery (2000watt). What fuse is required? Do you happen to know?

[@shermanclemons8946]

Didn’t show how you did it skipped over everything

[@KoonTrucking]

If you can’t figure out the part that was skipped you shouldn’t try the install it’s as simple as that. Two wires to battery that’s fused and run it to the inverter …… can’t get much easier than that

[@garycarroll9447]

You really didn’t show us how to do it. You just did it off camera.

[@KoonTrucking]

We showed the hard part? If you can’t figure it out when we show the hard part it would probably be best not to try the install yourself. Obviously the fuse size depends on the size of the inverter. The cable size also so it’s not a one size fits all. I wasn’t about to say you need a 50 amp fuse and #3 wire and a guy install a much bigger inverter. All that info will be in the manual and different manufacturers call for different specs. But adding a fuse and putting red to positive and black to negative shouldn’t be an issue for 99% of the general public that would attempt this install.

[@TheGeorgenc40]

Tractor-trailer trucks have a 24v electrical system. You did not explain how to get a 12v connection from a 24v system.

[@KoonTrucking]

All of our trucks have a 12 volt system ? We haven’t seen any 24v systems at all.

[@subcomandante77]

Just because its got 2 or more batteries doesn't mean its 24 volt system, just look how the cables are run and if in doubt bust your voltmeter out

[@TheGeorgenc40]

@@subcomandante77 The starting systems of most semi trucks are 24v. www.internationalusedtrucks.com/maintenance-tips/jump-starting-a-semi-truck/

[@HappyMan36]

I did not see you connect that ground wire, is it not required?

[@tonylewis3890]

OK seriously where is the work are you sure was stillborn how are you from the table together with the connector shot at it ravelry where is the car you running a cord where is the drilling the hole where is it where you sent show the ground in the next thing in your video you showed you already had a mountain your video says how to install the show how to install I’d give it a thumbs up but you didn’t show anything that you did it sell for setting the wire come on man you know not to complain but show no show to work

[@KoonTrucking]

I guess u are using voice text ? Not sure but I can’t make much sense of any of what you try to say. I guess you are fussing because we didn’t show every little tiny step but common sense on where to drill. Every application is different depending on what type of truck you run it in. As far as the connectors red is positive and black is negative pretty much self explanatory. I mean seriously if this confuses you, then you definitely do not need to try to install one yourself. This is showing how simple it is

[@tonylewis3890]

Koon Trucking OK yeah I am using voice to text but now he has a problem do your video says how to install common sense is here what are you doing how to install VA yes you do so every little detail because you have some people not like me because I’m military I know how to do certain things I was just seeing how you would run it instead of having to hang outside your truck like some people have seen you but do you have some people that will say OK then they don’t comprehend audio tape don’t understand how to install it I am or where to drill where do you know put the wires or any of that you have to remember you’re making and how to install video you want to do something as though you’re talking to someone in the fifth and six grade

[@KoonTrucking]

Well the problem is if I told them to drill here, some people aren’t smart enough to to actually look and check before drilling because it could be a different truck then they drill through the fuel lines or ac lines then they want to hold you accountable. I’m good with all of that. If they can’t handle where to drill we clearly showed the area we ran the cables they shouldn’t try it. I’m not opening up myself to lawsuits because everyone wants to blame someone. You are more than welcome to do install videos and show people how to do them. There’s plenty of room on KZbin for that. This video is plenty adequate for anyone to install an inverter in any semi truck by following this. People sometimes have to think a little for themselves but we clearly showed what needs to be done.

[@tonylewis3890]

Koon Trucking you know I actually agree with what you say - some people do t have common sense and would say you told us to drill here and place blame on you instead of themselves-

[@csgnjaxnc]

I would give a thumbs-up but you didn't show the whole situation you wanted to cut Parts out I guess you had a problem but you didn't show us how to figure out the problem 50/50 I give you

[@KoonTrucking]

If you can’t figure out how to run 2 wires from the battery to the inverter then you shouldn’t be working on your truck. I even showed how we ran them but to answer you question, we didn’t have problems the battery died on the camera and didn’t know it. But I’m sorry you can’t figure some things out on your own after showing you how to do pretty much everything. You solder a fuse holder on the hot side and heat shrink it and connect it to the battery 🤦🏼‍♂️

[@chillywilly9611]

😎👍

[@freeair9460]

Are you my cousin from near Columbia TN. If not sry . Y'all sound just a like.

[@SUPER_TANKER]

Wire to small

[@lindamorgey6736]

I think you can see some good advices on Avasva solutions.

[@btalboth62668]

What the hell? You didn’t show how to install anything except the battery terminal ends and the heat shield on that. 95% of the info I’m looking for was completely skipped over. That was a waste of my time.

[@KoonTrucking]

if you struggle hooking red to positive and black to negative and mounting the inverter then you probably should not attempt the install it is about as straight forward and as simple as that.

[@ericoutler9786]

I have a freightliner columbia and my battery box is behind the cab. What gauge wire should I use

[@halloweenbloodfrost]

What size stud for that battery post?

[@martingarcia8403]

What size fuse? Please

[@KoonTrucking]

All depends on the watts of your inverter and the load you are pulling on it. There should be some paperwork explaining the size of the wiring and fuse needed. Every inverter is different and guys use different wiring.