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[Music] you [Music] hopefully the enthusiasm in my voice is gonna carry this class through the afternoon I remember when I was doing engineering there's a profit fluid fluid mechanics his tone was so steady that I could go there and it was an afternoon class and I wasn't never made in one class without passing out asleep I remember I did a Tim Horton's challenge once I had 12 sugars and I told my classmates I was like I'm gonna make it to the end of this guy this guy was smart I mean there's no doubt the information was very useful and extremely valuable I could not make in this guy I'm Mike you can see I'm Latin I speak with intonation the voice dynamics are different this fellow had his voice was steady it was perfect I never made it to the end of one class ever ever ever now my grade in fluids was not great either clearly so I'm always trying to say I'm gonna try to keep everyone awake through the energy of my voice all right so what we're gonna do next is we're going to talk about troubleshooting electrical things on your boat as you can see the challenge with troubleshooting electronics is it's pretty intense besides troubleshooting power then you need to start being in the application layer right like you need to go so don't be too daunted and overwhelmed if the electronics seemed a little bit hard it is it's much easier to troubleshoot an electrical system than it is the troubleshoot an electronic system okay so in terms of pay grades I just find it it's a normal evolution and it's completely separate but it gets pretty it's like solving a computer problem right at the end of the day it's non-trivial like it's a skill so you can do a certain amount of work on your own but at that point if you can you don't want to be too hard on yourself it's pretty geeky right unless you live and breathe this stuff you're not gonna be able and then we didn't even talk about bugs within the unit all right like I know and my technicians like oh yeah that bug happens when this happens that happens of that generation for that code hi how the hell as an operator you're gonna know that you're not so you're not supposed to be completely self-reliant in troubleshooting your own electronics just by yourself it's just not gonna happen it's not realistic you do the best you can and at one point you go I done I've done what I can I need help and that's normal and we do the same so conceptually yesterday we talked about all of this and that's a typical maybe not everyone has all of these things on their boat but that's pretty much what a boat DC electrical system looks like now of course some of us have more batteries and you know we have 24 volt systems and 12 volts but at the end of the day it still can be brought down to something like this alright so Chargers now that's a good thing to troubleshoot right common we all have one if you don't have one you should have one so what are the common things for troubleshooting a charger well the first thing is what does a charger do it takes power AC power and converts it to DC the first thing you got to figure out is does my charger actually have power so a common thing you're going to want to make sure is that you're gonna want to make sure that the breaker here right is actually on and it's actually not probably labeled charger it's probably labeled converter so that's confusing in the old days there were computers converter so I get people that have new handoffs with boats not their own boat an older boat they're like I have never idea what the converter thing was so I never turn it on unrelated my engine batteries are dying and I don't understand why they don't get a charge I'm like well actually it is sort of related you decided and we're never told to turn on the converter which is your battery chargers for your engines oh but my house gets a charge oh yeah but that's from your inverter charger oh you mean I have two Chargers yeah you do you have two charges on your boat so first thing is you got to have AC going to the charger right an AC remember your charger will not work if you're not connected to shore power or you're not having the generator run so you even go at the beginning you're like a your charger will only work if either of those two sources are on if your source selector is enabled right so if your panel your a and this is why an AC voltmeter is really useful in the panel if you don't have both of the panel don't start worrying about turning on switches right it's all about chasing power from the source the generator is gonna have a literally a circuit breaker it might have tripped press that after that make sure this source selector and by the way they get old and then they fail that could be the issue so when you're troubleshooting you're like do I have power at my AC panel is nothing working on my AC panel or just my charger not working on my AC panel so process of elimination if only your chargers not working try to trip that breaker that clamp on meter would tell you you could literally go and actually without ever even measuring voltage you could actually put it on a single wire not the cable because the cable is actually gonna see the sum and the sum is zero because there's current going one way and current coming back you want to be able to catch the hot or the neutral and you put it on around this and you could actually see if this is getting power the other way would actually see if also there's lights here that would be another one if this is actually energized but you could have this receive power and this is dead right so you could use also used from Home Depot a little wand right they can actually measure the pulsation of current right there about ten dollars and I actually have it close to the AC input to the charger if it lights up and this is not lit up you know that there's AC coming in and this is not lit up this is the problem stop replace the charger right it's pretty simple now if you have AC coming in you have lights on the device and your batteries are not charging then what the problem most likely is is that the fuses might be blown right or that your charger is badly installed and it's on a switch and I've seen that where charger outputs are switched never should be black and white and the switch near the battery is off and you have to have the battery switch on for the charger to be connected to the battery basically that's how you troubleshoot a charger it's not that hard but you start from the source and you work your way down it is definitely possible that your fuse will be blown it's possible a lot of people will put a 40 amp fuse on a 40 amp charger thinking that a charger is a load it is not a load a charger is a charger it doesn't pull current on the DC side it pushes it so if we installed a 40 amp charger we put a 50 amp fuse and I have gauge wire right that can handle 50 amps it will never get 50 amps but for safety I'll put gauge 850 and I'll put a 50 amp fuse for never for having nuisance tripping you have a question oh none like me I don't know like 2% most fuses there's none or they're gonna put the fuse completely in the wrong place people think a fuses this magical device that somehow protects all things it's sort of the equivalent of a magic wand you just move it around someplace and everything around in that direction is they don't understand the location of the fuses important like you lock the front door of the house not the back door and wonder why people are inside your house like if they can come in like what's the point of having locking the exit you want to stop something from coming into your house not leaving your house on this you could do an mr BF we talked about there's another one that's maxi fuse is a good one they call in smaller sizes a maxi is a really good one you can even put a thermal circuit breaker I see thermals all the time they come small but they're pretty they're more expensive but at least they're resettable you see those little resettable thermal circuit breakers on those generally they're gonna install them right beside the charger any other questions on chargers yes the battery source is the real thing with energy so the fuse is right at the start of power the real power is from here a battery charger will only ever output 40 amps or 50 amps or whatever it's rated at it's not gonna fail hi the the eternal power is really at the battery this has endless power well not endless but for our sake pretty much endless so you put the fuse as a power supply now if you want to get really crazy you should have it fuels on both sides of the circuit like but I would be so happy if people started fusing at least the battery like I mean I'm gonna have I have hopes yeah because the real the real remember this wire will never fail it's rated for 50 amps right this will only ever get 40 where is this short gonna be there's no problem you're fusing this because if this ever shorts here this source of power here is definitely more than 50 amps your battery will is not limited to 50 amp output could do a thousand 2,000 3,000 4,000 like on a desk short kit there is no limp well there is a limit but it's gonna be pretty high up there too unbelievable so the battery is what you're worried about yes yeah the video correct it's the right location the question was as it relates to the video I had a video on fusing it's on YouTube about the location of the fuse yes this fuse would blow that'd be perfect it would protect the circuit because this know it will prevent a fire it's in the right location it's at the beginning of the real circuit always fuse and the battery you should always have a few starting from the battery down always always always always always see me when the inverter charger you don't need a fuse at the beginning of the inverter you have a fuse that the battery the battery is what you worry about the battery has so much power but yes the question is why do I need two chargers on my boat one for the star battery and one for the house battery it's unusual a charger is by definition most of them a multi output charger some or single output generally what would happen is you have an inverter charger on your house which is common single output device right pulls and pushes right pulls to create it DC pushes to create charging and then you're like well I've got an engine battery I'm going to charge that you could do it through battery combiners that we talked about but there's implications of that you could do through an echo charge implications of that or you what you might say is like oh well you know what if I put a small small single output charger which is maybe one hundred two hundred dollars whenever the AC short power is connected that engine battery will have its own charge and that's why you would do it in an ideal world every battery well I didn't ideal where you almost have a charger per battery you would I mean why not there's a reason cost space and time but there's nothing wrong with it nothing wrong with that yes question mm-hmm no I'd be the same thing you'd have the fuse you'd have the fuse at the battery absolutely black and white at the battery always the battery always the battery remember an inverter charger can only do I know you got a big one 150 amp charge output the wires too op can your batteries give more than 150 amps and listen if you can melt the wire like melt a wire it's definitely more than 150 amps well it depends on the battery charger it depends on the wire the question is what size did you put up a fuse remember there is no simple answer to anything right everything is context-driven there is no golden formula there's no lil like cheat sheet Florida I'm charger okay maximum output from that Chargers 40 app there's no such thing as a 40 amp rated wire wire is gauge 10 30 amps next size up is gauge 850 amps okay 50 amp wire which means gauge 8 I want a ratio of 1.25 so I do not get nuisance tripping 1.25 times 40 equals 50 amps 50 amp fuse that's how you fuse a 40 amp charger if you told me what's a hundred amp charger then I do same approach but it'd be completely different answer right everything is I mean we got it yeah I mean of course you can't be scared of math right but it's it's just math it's just just math you just calculate okay so that's basically a charger this is common by the way right like like people with charging problems on boats that's right up there like if your keep your mind open because this is something you have on your boat and this is important this is how you maintain your batteries because think about it most of the time you have a refrigerator that's running off your house which was just left on connect it to your on switch distribution continually into your house battery and if you don't have a charger to maintain your battery when you're off the boat you're gonna come back and your batteries will be dead right so there are loads on your batteries when you're not on board bilge pumps refrigerator right so you want to make sure that the charger is offsetting those loads so before you leave the boat you should be always checking is my voltage on my batteries has it gone up before you look at what your charging voltage was or your voltage before turning the charger on and what it is after you leave or before you leave it's not about a value it's about an incremental difference because your batteries could have been empty and your batteries could be charging at 12 volts if they were 11 before they could only be at 12 if it's a small charger right you can't say Oh a charging voltage is only thirteen three no a charging goal is the incremental differential voltage from where you were before right if your batteries were dead at ten point five don't expect your charger to bring your batteries to fourteen point four volts in an instant it's gonna take time to get there how you know your Chargers working is by looking at the difference before I was on after was on what's the Delta yes yeah this is why next year it's gonna be a two-day mandatory course very good question very good question we answered that yesterday voltage I'll take that aside just for the sake of the people over here in the room but yeah voltage is not a way to indicate is never a way for you to make a decision on if you should charge your batteries or not it should be an a power meter I'll talk about that later we'll do offline yeah battery monitor yeah who said that oh that's awesome god goldstar it was but I love it I mean Z's listening all right all right okay so any questions on charging yeah go ahead I don't I don't know I'm really big on cleanliness I don't think are still in any level here is warranties it we don't there is no saltwater here by the way anything anybody who swam in the Caribbean knows that this is not salt water the salinity here is a joke it's a joke the Fraser is a monument of freshwater coming down in this this whole bass in here this whole Georgia thing there is no this lonely level here is a joke you go in the Caribbean you go swim for fun open your eyes underwater and see what type of grown man you are when you come out and you're in tears okay this thing is like as fresh as it gets okay like they're the review I mean these mountains and the amount of snow that's on there in the summer and the freshwater runoff now there's if I was in Hawaii I'd start entertaining Florida Panhandle oh yeah absolutely you know totally different but over here absolutely down don't think so no need no need I've never used it on my boat I don't ever use it on people's boat never had a problem but again it depends on your area right and depends on your area yeah of course I mean if you're going to places like Hawaii people in Hawaii have to change their ranking every 10 years it's suicide not two things rusting like crazy how many people are changing their standing ringing here on their boat every 10 years no one dielectric grease it's there's there's implications of using that there's implications yeah I like maybe a spray bull shield t9 may be a little bit better you know but it can get messy right like it can get messy right I like cleanliness I've got an OCD problem it's a problem I acknowledge it it somehow has propelled me in this business but it is a problem and I like cleanliness I like order and when something's greasy and all messy and then it catches dirt and it's all disgusting I my mind can't let go I'm just like I got to clean it and then I removed the dielectric grease and then I'm back to square one so I just can't do it and I don't see a need to not here question it's a complicated question there are implications for that question it's not a problem it can just make the life of your alternator a little bit complicated but you should not start your engine with a charger on there's reasons for that but having solar panels connected won't matter no matter but a charger if I told the WYD everything honestly you can't you can't be crazy we need like like sleeping pills like it'd be like like it'd be crazy but the end result is don't have a charger on when you start your boat there's a few good reasons for that but don't worry about solar don't worry about solar any other questions on troubleshooting or diagnosing a charger issue on a boat