I NEARLY SET MY CAR ON FIRE
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- Опубліковано 1 жов 2024
- Struggle to trust the quality of Kings gear? I've been running Kings electrical components for a year or two now with no problems, so when the 40A DCDC Charger when on sale, I couldn't pass it up. I had no idea that installing this piece of kit would lead to the most terrifying moment I've had since owning a four wheel drive.
Will I continue to buy Kings gear? Is Kings reliable? Let's see if the Kings 40A DCDC charger holds out this time.
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12v 4wd install, kings 40a dcdc charger install, can I trust kings gear?
Looks like my wires being too small was a factor in this charger failing. Looking forward to getting this right next time round and not smoking out my car on the highway... Thanks for all the helpful tips!
sorry mate your wire way too small, you need at least 25mm wire 170amps draw. thats why your unit overheated.
Mate. Your wiring is too small and the DCDC charger should be located right near the battery it is charging. You should not place the DCDC charger in the bonnet either as they already get hot and they don’t like getting wet.
You should just buy the wiring kit from kings, it comes with the correct wire size and a maxi fuse.
So many people bag kings stuff but they themselves are usually the reason the component failed.
I have one of these 40A dc-dc units and it is great and never gets warm let alone hot.
If you are gonna wire in something do your research.
@4:00 what's in the can near the open flame drying the primer?
I've got mine all set up and absolutely love it only suggestion I'd make it having the dc-dc charger out in the open not under there as they need air flow to cool down they produce a bit of heat when fast charging and for your set-up your really only need the 25amp one 40 it's way over kill I'd only use on of those when dealing with 200+amph batteries best of luck though 👍
Good call on having it out in the open! Definitely could have contributed to this one dying 😢. I’m glad you haven’t had any issues with yours!
Wow… that’s all I’ve got…
I'm a bit confused with your setup. You have dual batteries under the bonnet, and a DC-DC charger right down the back. Are you charging the under bonnet battery with the DC-DC? If yes, the installation is flawed because of the huge long cable runs. You said you used 50A wire, which is too small even from the alternator the the charger - if you are then running another 50A wire to the battery up front it won't charge much if at all due to severe voltage drop. If you have a third battery close to the DC-DC charger it's OK to hook that up with 50A cable but you still need bigger wire from the front as well as resettable circuit breaker up the front. Kings gear is generally OK if you are happy with 7/10 quality and performance. Unlucky with the dodgy 40A unit but not surprising that a Chinese factory would substitute garbage cheap capacitors even if a good one was specified by the designer. Note too that not many AGM batteries will take 40A charge, 25A stops most.
If you can afford it, a nice setup is a Renogy 50A DC-DC Charger with MPPT. It will charge your rear battery from solar panel and/or alternator, and when parked and your rear battery is full, it will charge your start battery and keep it topped up. I have this setup with the two batteries up front wired in parallel for winching, and a third battery in the rear. GU CRD like yours.
Since the charger failed I've learned that there is a few problems with my setup and I wish I spent more time planning it before installed it all... That's why I'm not sure if I'll actually re-install it at this stage. I've found Kings more reliable than others, but I was waiting for the day that a piece of my kings kit would stop working.
If it's only a 40A charger, is there an issue if the cable is only 50A? Does that not allow enough current through? Sorry I'm pretty new to all this, appreciate your insights!
40amp is the max output of the charger, the input will draw more due to losses (like voltage drop) and powering the actual unit.
Thanks for your thoughts. This is really helpful! Definitely something to keep in mind if I re-install the charger.
@@camclarke567 Correct. The charger will have 14.2V output and be 85% efficient, meaning the input current at say 12V would be 56A
Hey Joe Biden, You just said that not many AGM batteries will take a 40 Amp charge but then recommend a Renogy 50Amp charger?
Install error. Always read the instructions. Need at least 6B&S or 100amp equivalent. Not only that but at least wire in a maxi fuse from your alternator. I advise wiring in a smoke detector like they do in campers as well.
I couldn't find a cable size recommendation in the instructions but the wire size could definitely have been the problem. I've never thought of a smoke detector in the car - good idea!
@@joemurrayau yes they state your vehicles specs. Especially if its over 5m mate. Fuses everywhere on everything, they save you when you have a disaster.
Remember you will have a hard time explaining to your insurance as they wont cover you if it wasnt wired by a professional. Vehicles dont naturally explode in flame.
This has me a bit worried as I just installed one of these last week. Well, my dad installed it and I watched because if I did it, the ute would have burst into flames by now.
In my setup though, the charger is less than 30cm away from the auxiliary battery and the cable from the alternator is fused at both ends with inline midi fuses.
I'm also running a shunt and monitor. As for the size of the cable from the crank battery to the DC to DC charger? Not sure, as it was from my dad who had it left over from wiring up his caravan. I believe it was 8mm/75amp cable. With 40amp fuses at either end, it's not the weakest link so I'm not concerned about that. My alternator only puts out about 30 amps, so short of getting struck by lightning, I don't see that being a problem.
The sketchy capacitors thing is not good news. How likely it is to be an issue is anyone's guess. It would be interesting to know how much current yours was drawing when it cooked off though.
I do have some more wiring to do. I am wanting to put in an outlet panel (one of the kings ones with voltage, two cigarette lighter outlets and dual USBs) into a home made centre console. Any tips regarding practicality, routing wires or anything else that seems relevant, I'm all ears. At the moment, it is at concept phase, so if there's a better way of getting power from the aux battery in the rear of the cab in a 1996 Holden Rodeo, I'd love to know.
I bought the charger in January and was told that the problem capacitors had been upgraded since so hopefully it'll be more reliable for you. Sounds like you're a few steps ahead of me anyway with the charger being close to the battery and your cables being a bit beefier. My only concern would be is the 30amps that's coming from your alternator enough to power the charger? I'm pretty new to getting 12v setups right so it may not be a problem at all.
The alternator dosnt decide how much amps it can send it will happily overload its capacity and fail, 30 amp is very small are you sure it's that low
Buy once cry once, there's a reason why redarc is the price it is.
My Kings 40a dcdc charger just stopped charging. Less than 12months old.
Kings might not be the most expensive highest quality but they have actual shops where you can talk to a real person face to face even , bit of a rarity these days .
Kogan 3K W inverter no load. I rang them they didn't care the glue they used caught alight if I wasn't there to unplug it i would have lost my motor home.
Oh no! Good thing you were there to save it! Hopefully you have a better experience with the next inverter. What do you think you'll replace it with?
I had the same problem and they gave me a full refund.upgraded to atem Australian company 60amp haven’t had a problem since
I’m no expert mate but I believe the DCDC charger needs to be as close to the second battery as possible. not sure why you have the charger right in the back and the aux battery in the front.
User error by the sounds of it, dont blame kings.
Kings admitted to faulty capacitors, so blaming Kings is fair play. Running too small a cable is user error, but won't blow up quality DC-DC chargers.
14.7 v not for an agm battery
Kings garbage.
I’d probably be a little careful. Pretty defamatory video title considering you’re most likely the fault not the product. They’re a legit multi hundred million dollar company and they probably don’t love false accusations. But up to you bro.
But Ye 10+ year sparky in large commercial and having wired multiple forbys / Race cars. You’ve undersized you wiring. Insulation and copper is only rated so far, you’ve exceeded it.
You can download a Maximum demand calculator or do the maths yourself and work out Cable size that way.
Copper is cheap, cars aren’t.
Rubbish. Kings admitted to faulty capacitors, and he noted they happily replaced it under warranty. You're being totally dramatic. Telling a newbie to do the maths himself is arrogant in the extreme from an experienced sparky.
@@einfelder8262 It’s constructive Criticism.
All I’m suggesting is there is a million free tools within google to work out a suitable gauge wire for your application.
I own a patrol , I enjoy seeing other young dudes in the field having a crack.
I don’t wanna see another young Aussie dude lose his 4x4 due to an electrical fire.
The only dumb question is the one you don’t ask, him going on google and using a super basic free tool is something he can do for the rest of his life and it’ll guide him pretty god damn efficiently.
Kings also admitted it was there previous ones with the failure. Not the newly released 40 amp. I’ve installed quite a lot of kings gear and it’s generally pretty good electrical quality I’ve found for the price point.
At the end of the day, I’m offering advice from an experienced position. He can take it or not. But Joe , if you’ve got any questions or need help. Feel free to reach out.
@@LVUFC As a senior citizen now retired I can reliably inform you that there is no such thing as constructive criticism. Helpful advice is a much better path you could try. See my earlier posts and learn what helpful advice sounds like. I also have a GU Patrol which I wired myself 12 years ago and have not had any unwanted smoke.