$50 Dollar 2000 Watt 24V DIY Power Supply. (2Kw)

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$50 Dollar 2000 Watt 24V DIY Power Supply. (2Kw)

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HP DPS-800GB Power Supply - j35.us/PowerSu...
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Пікірлер: 374

@benabbott9984 5 жыл бұрын

The safety code #21 is from the power supply having too much noise. As said in the manual, "it is quite common that everything operates fine until a high-current charge is performed and then the communication link is lost as the current is ramping up to a high-current charge."

@politicalpartyagnostic268 5 жыл бұрын

I love watching you in your play ground. It is obvious you love doing your projects.😁 I love watching!!! I love the way you think!!! I love the way you explain things!!!

@boblewis5558 4 жыл бұрын

Whenever connecting independent DC supplies either in parallel OR in series, it is ESSENTIAL that FULL electrical connectivity is checked for proper isolation AND equivalent voltage (parallel) and current (series) capability. In the case of series connection it is ALSO ESSENTIAL to ensure that a) BOTH cases are grounded properly and b) that the DC grounds are NOT connected to the Earth ground or when connected in parallel BOTH supplies will end up being shorted!

@garychap8384 3 жыл бұрын

In a parallel setup, what generally happens if one PSU is turned off or fails? ... my intuition tells me that I really don't want power being sent into the wrong side of a PSU : O Can't that large stepdown transformer become a really nasty step-up? Or, does the design of modern power supplies typically preclude this. I guess there's some nice power diodes in there - but surely they don't expect to encounter the full force of the PSU in reverse polarity. I worry that the protection just wouldn't be beefy enough for such unforeseen abuses : / Does it all just get stopped at the rectifier stage, no heat, no worry ? I guess if it can't pass the rectifier at all - then the output smoothing stage with those big ol' caps maybe doesn't actually have to handle anything. But what if there's some path there (in the output smoothing) that can break down and cause current to flow : O For the record, I'm not about to try any of this... but I am curious as to why it works.

@gvngoheavy 5 жыл бұрын

nice! when you first said Kapton tape I thought you said "Captain tape" and got kind of excited for a new character/person to the Jehu youtube channel, and their secret electrical insulation powers.

@trcostan 5 жыл бұрын

You can also add a resistive divider across the input pins and bring them Up to about 13.5v before they start to over voltage. If you add a resistor across a pot inside you can bring them to over 14v. You should stack 4 of them and get a 48v-56v supply! I use the HP 1200w ps all the time for amateur radio stuff. They work great!

@NautilusCL 5 жыл бұрын

Hi, do you have information about this mod? im a amateur radio operation and this is a very handy power supply for my radios if they can provide 13.8v

@electromechanicalstuff2602 5 жыл бұрын

Im looking for a SM power supply to charge my fiat batteries with. I only want to charge to 4.0v/cell 14s so i would need about 56v. 4 stacked can get me there? I wasnt sure if they where adjustable.

@crazystuffproduction 5 жыл бұрын

i would like more info as a felow ham please

@jark22 5 жыл бұрын

Woah woah woah, you are putting a server power supply load on a resistive divider???

@trcostan 5 жыл бұрын

Vortechnology no, internally you can set the output voltage from the reference via a divider. If you want more then 13.5v you have to modify another divider to trick the over voltage limit. Your not going to put 100a through a divider :)

@MrPuddinJones 5 жыл бұрын

that thing just charged a cell phone in 3 minutes. if it could handle those amps that is. crazy power

@DrHarryT 5 жыл бұрын

You are not supposed to charge a LiOn battery at more than 1/2 it's rated storage capacity. Example, a rated 3000Mah battery should have current limiting of 1500Mah@ no more than 4.2V EVER.

@MrPuddinJones 5 жыл бұрын

@@DrHarryT i know, thats why i was saying if the phone (intending battery) could handle the current income. I know its completely unreasonable to assume that would work. I just noticed the capacity it was recharging the bank in the video.

@thedillestpickle 4 жыл бұрын

Bravo for making this video. I was just realizing my limitations with my current overpriced 15V powersupply and was thinking about something in the 24V range. Thank you!

@muppetpaster 9 ай бұрын

Or get some ATX supplies and do the same...Cost about nothing 2nd hand.

@soosaisteven3984 5 жыл бұрын

Series connection of switching power supply will upset the internal control loop of the individual units due to each power supply have slightly different internal impedance. Try drive the unit you have created at 90% of the rated capacity and show us what happens.

@SeaScoutDan 4 жыл бұрын

7:15 Hmm I need a bigger battery . . . Hey look a tesla pack, that will do nicely.

@phillipchaboya2798 5 жыл бұрын

You should also flood fill the card edge with solder as the whole of it is meant to transfer power, Not two points...

@boblewis5558 4 жыл бұрын

NOT the right way to proceed. Use the correct edge connector and multiple cable connections to the relevant pins. IF the single cable connection used is of sufficient current capacity on its own then there would be no issue in a single connection. It's not a point connection but a distributed one. Using the relevant, correct pitch edge connector with multiple cables as per its normal expected use would be the best. Flood soldering will not provide more current capability for the link, and the gold plate on top of copper will STILL carry more current than the solder on its surface. Connecting (soldering) multiple cables in parallel would work far better than flood soldering. That is a proven, reliable, hard wired technique used for decades in just about every kind of ATX supply.

@machrider2333 3 жыл бұрын

@@boblewis5558 strip 32mm of insulation off an 8 gauge wire, tin the wire and solder it parallel with the pad's length instead of perpendicular like the XT90 in this video.

@steve64464 5 жыл бұрын

Thermal camera on the wires may been interesting

@SuperBrainAK 5 жыл бұрын

steve64464 I bet that little xt to ec5 adapter was getting pretty warm

@tiborklein5349 5 жыл бұрын

I used to build custom distribution boards. 70-80 °C is considered operating temperature.

@SuperBrainAK 5 жыл бұрын

Tibor Klein as long as you don’t touch it :)

@kitecattestecke2303 5 жыл бұрын

@@SuperBrainAK and if lifetime is not of any concern

@SuperBrainAK 5 жыл бұрын

Good job! Btw as long as you left the ground connected to the mains they are still connected together so the cardboard in between is redundant but it is better than having metal on top of metal.

@fintutorials56 5 жыл бұрын

SuperBrainAK the output might not be referenced to the protective earth on these PSUs anyways, so it might not matter. Sometimes the manufacturers just ground the case.

@fintutorials56 5 жыл бұрын

SuperBrainAK worth to check the grounding anyways. (I wouldn't want to short these supplies out :) )

@SuperBrainAK 5 жыл бұрын

FinTutorials I’m pretty sure there is a CE rule that power supplies over a certain wattage need to be grounded

@fintutorials56 5 жыл бұрын

SuperBrainAK I think so too, but these server supplies might be designed diffirently, atleased the case was grounded.

@SuperBrainAK 5 жыл бұрын

in the video he shows that he put insulation under where the screws connect the chassis ground to the negative rail isolating the secondary of the psu from ground, so they were grounded all the way through

@Bet0T 3 жыл бұрын

I know theoretically should work but I was afraid to do that....until I see your video. Thanks a lot!

@travispratt6327 2 жыл бұрын

One thing I learned recently is all these chargers have an input amp rating, and to get the full watts you need to input the max volts they advertise. Looks like this one is 30a. It’s a tricky marketing ploy they use and you’ll never be able to reach the advertised watts in practice.

@scottleggejr 4 жыл бұрын

Jehu, I am a datacenter architect professionally. One issue you may run in to is the fans being PWM controlled from the host server, might not run @ 100% unless you jumper the fans to 100% of their rated voltage or short the PWM feed to the fan +. Maybe worth looking in to? Not sure if you address this in your PSU hack schematics. Thanks for the content, ideas, and videos! Love your stuff.

@aussiedigger1441 2 жыл бұрын

I will never buy a brand named power supplies for RC lipos which cost $380 for a 1200watt at 18v. They never last & they run hot! Server psu all the way to the bank. Thanks for sharing.

@Buzzhumma 5 жыл бұрын

Your channel is superb mr Garcia . Every time I watch something you are proving to be a great master of your craft and I learn so much with the information you deliver . And your a master of a human too with endless quality . Thankyou for your content and existence 🙏

@garyb9867 5 жыл бұрын

Good video! Since I don't have time to watch your Live-Stream videos, I appreciate it when you take the time to create real useful videos. Keep up the good work.

@jamesw6529 5 жыл бұрын

Love your video. As I'm just getting back into my electronics I'm in need of more detail of all the wiring and grounding for this project. Thanks

@AveRage_Joe 5 жыл бұрын

I believe the other charger blew up because the supply voltage was 12v. Similar to why I blew up the antimatter charger I have. The charger has to work to hard for the higher amp outputs. So supplying higher input voltage should help out the charger a lot! This is what I have noticed at least for the antimatter charger. I did the same mod with same server power supplies lol!👍

@toddlaplanteVT85 5 жыл бұрын

Bingo.. The Powerlab 6 and 8 Touch also can go up 48volt input.. really helps out if you go past 6s and high current

@josepheastman8509 5 жыл бұрын

So when will you be recieving your nobel prize for your anti-matter charger?

@AveRage_Joe 5 жыл бұрын

They said its in mail 😆👍

@Lagggerengineering 5 жыл бұрын

Casually using my antimatter charger, nothing to see here. :D

@malicious1111 5 жыл бұрын

maybe add another power supply... 36V :D

@MrJHDK 5 жыл бұрын

One of the things I enjoy and respect about this channel is that mistakes get shared. 😊

@Basshead40 5 жыл бұрын

For your power and ground cables look up crimp supply welder cable. Priced great and pure copper.. and can take a lot of power without getting hot!

@rockybass3129 3 жыл бұрын

Amen on the fine strand stuff, up to SLMR (but that has fiberglass insulation and is a hellish thing to work with, locomotive cable essentially)

@rockybass3129 3 жыл бұрын

Only problem with welding cable is that damned rubber insulation and it's relatively short lifespan. I had my starboard engine aboard my Chris Craft wired with it and that stuff just all either fell off or was left as green muck filled tubing as the copper was mutated into greenish gooey paste. Best all around wire for this to me would be a tinned copper fine strand, with Teflon inner cover and a PVC outer jacket similar to tray cable in the plants. Expensive stuff but when you start comparing ampacities to the regular THHN building wire and it's complete lack of flexibility, it's often worth it.

@Paul-gz5dp 5 жыл бұрын

Just remember to also remove all the ground connections when combining power supplies.

@HandyC 5 жыл бұрын

4:11 Breakers in the UK are 16Amp for the 240V ring main circuit... 3840w through that bad boy before it says bye bye fool :D

@gravelydon7072 4 жыл бұрын

Breaker for our main is 200 Amps at 240Volts. Should by load be limited to 160 Amps per code. 38KW but rated for 48KW. Sub panels include 50 Amp breakers for them. And yes , we do have some 50 Amp sockets.

@HandyC 4 жыл бұрын

gravelydon I didn't say main breaker, I said ring main breaker, which is the one that will trip if you are plugged in a normal household socket.

@sr175 5 жыл бұрын

There was a fairly recent video by Joshua bardwell that explained these chargers. Most of the chargers are limited by their input current not their output. I wonder if that's what's happening here.

5 жыл бұрын

RC chargers are very often input current limited, yes, if not always. Mosfets are expensive to oversize enough that you can fully utilize the power at the lowest input voltage.

@whatevernamegoeshere3644 5 жыл бұрын

Simple answer, yes.

@aaronfuksa2047 5 жыл бұрын

Awsome! this may be a great idea for diy electric range motorcycles. Already aware 3,600 watts will give a recharge of about 1.7 miles range per minute @ 30wh per mile. 102 mile per hour charge. fills up fast a 12kwh pack in less than 3.13 hours with 15% efficiency loss & 80% use of battery capacity. that's 239 miles range in 3 hours , while using 80% of your battery capacity. All we need is instant or fast chargable batteries to get to 2 to 3 miles per minute of charge. Ev's rock.

@cpufreak101 5 жыл бұрын

I have a bunch of old PC PSU's laying around. most are only 300 watt but for how many I have just off-hand this could be a cool experiment

@Boffin55 5 жыл бұрын

You're probably still going to run into the issue that the 0v output rail of the power supply is connected to chassis earth, so if you try and run two in series they're still going to short out via the ground pin on the supply

@jehugarcia 5 жыл бұрын

They didn’t

@Boffin55 5 жыл бұрын

I wouldn't guarantee that's the case will all server power supplies, or even all HP server power supplies.

@nomadchad8243 5 жыл бұрын

I found the exact psu x2 the other day . Some dude at the North Pole was chucking a server out of the helicopter into the snow and I said hey wait...lemme have those psus and he was like OK here you go ..." I wiped all the data off them".....and I says pardon? Now I have two shop 12\24 volt bench supplies.

@ellooku 5 жыл бұрын

Wow, I never thought of this. Great idea.

@slevinshafel9395 3 жыл бұрын

Take care is not so good. He is floating one of the power supply. That mean if something go wrong in that PSU you can got shock because not safety ground there. But a good isolation its work.

@GroovyVideo2 5 жыл бұрын

Pretty sure when charger on last video fried its because the Boost converter in charger was trying to boost voltage to 24V from 12V supply and trying to get More amps than charger could Boost / pass thru - got hot - poof - I use Icharger 4010 Dual to charge 120AH Calb Lifepo4 battery from car alternator - works well - Im putting 2 Tesla S modules in my RV right now - also modded 3000 watt 50 volt server power supply- was not easy to get it to work - almost gave up( 2 weeks) but finally got it to work - 50 volt output power supply is what you my want- its what I need for charging tesla s 2 modules

@rakly3473 4 жыл бұрын

"And then what you got to do is buy a second one" hahahahaha :D Tears from laughter :p

@njfulwider5 5 жыл бұрын

Jehu, I use a few Chargers like this, That I hacked, one I did the Floating Mod with Plastic washers and nuts(Nylon). I left mine apart for now, only because I may add them to a bigger Power supply I am making 1K adjustable. I wasn't sure how they might fit together, But Combined and on 220V, I get around 2400w or 200amps(HSTNS-PL11 x 2 ), and on std 120 I get around 1800watts or 150amps. I also made a smaller charger from the same PS and that is 750watts or 63amps (HSTNS-PL18). Both I use with my Reaktor and 1000w Battgo Ballance charger. Great Video!!!

@tedhancock68 4 жыл бұрын

Interesting splice at 5:23. Since the EC-5 female (charger side) is compatible with the XT90 male (PSU side), you can just plug them together.

@seandonelan5834 5 жыл бұрын

I want one of those suckers for my lab Edit: Minus the smoke

@gravelydon7072 4 жыл бұрын

Everyone sees a little smoke sometime. If you don't, you aren't pushing the envelope. He proved he was when he let the magic smoke out of the charge controller. ;-) Another one is when the hot melt glue you used to hold wiring in place starts dripping, you might want to back off on the Wattage.

@AbdAlgani1999 4 ай бұрын

thank you

@Lagggerengineering 5 жыл бұрын

Very good idea with the server power supplies!

@M3D1C2121 5 жыл бұрын

I clicked on this solely because i thought i saw you using Server PSUs xD and i was totally right. I work in a server farm and we literally just throw these things out when the customer requests a redux of their units. I never thought they really had a use besides just running Servers, guess whos nabbing a couple of these bad boys next time they roll through xD

@JasonLeaman 5 жыл бұрын

Server PSU's are the best to use, they can handle the Continuous abuse :)

@basilyousif3077 2 жыл бұрын

Why do you insulate the inside board from the case ground? If there's a short the current will travel back to the ground wire through the case.

@joshuawheeler4404 5 жыл бұрын

My only advice is use at least 8 gauge wire from that power supply to the charger and I bet u will be able to ramp it up higher. Even at 600 watts you should be using 8 gauge wire also I would ditch the connectors

@adamkostan8671 2 жыл бұрын

Nice work 💪 Keep more video's coming 📹

@supperflydaddycar 5 жыл бұрын

I believe the charge controller lost its data link to your actual power delivery units because of too much noise from the power supply input. seems to be a safety feature on these Revolectronics products. Maby your homebrew power supply wasnt as stable as predicted

@scottranger89 4 жыл бұрын

12 AWG is good up to 20 Amps continuously, braided cable a bit more.

@darrelcdammann 5 жыл бұрын

looks like a good start

@gismo3564 5 жыл бұрын

Chance is positive happening, like a chance to win the lottery. Since I assume you don't want to shorten your power supply you should use the word risk. I know it's a small thing, but just one of those things that really shortens out my brain for a second, even at my native tounge 😜

@mywindow9929 5 жыл бұрын

11:00 input current is limited by voltage. Increase the voltage to 32V to get 40A. You can add other + and - voltages to go above and below 12V by jumping them together. This is why a PC power supply has negative voltages available. - TLDR: Jump the +12V +5V +3.3V on one power supply to get your 32V and 40A

@gravelydon7072 4 жыл бұрын

Except you will find that the other Voltages will not produce the same Amps. So what you have just done is limited to it to 2 Amps if you don't blow it up first. Bad Idea.

@high1voltage1rules 4 жыл бұрын

I just xant get enough of your videos buddy. LOVE YA VIDEOS, SO INTERESTING 👍😉👍😉👍😉

@soldermecold7456 5 жыл бұрын

You should be able to set the max input current like you can in the iChargers. Everything on mine is just a menu setting. I’m surprised you didn’t get something that can handle at least 7s! I’m using mine to test charge/discharge a complete PCB.

@abnerflor 5 жыл бұрын

Thaks for share your knowledge. cuestión, can i use 4 universal 20amp power suply in paralell to get the same result.?

@Phil-dg1yg 5 жыл бұрын

Jehu ! Very interesting! Thanks

@igormoreira9978 5 жыл бұрын

Aqui no brasil, uma cédula 18650 é em torno de R$20,00. É por isso que a tecnologia nesse pais não vai pra frente, fazer um projeto é um desafio quando tudo é pouco acessível.

@joed2392 5 жыл бұрын

Dude, U need to start using some high current diodes in your projects !

@blue03r6 4 жыл бұрын

ditch those powerlab chargers for a Icharger 4010. it's input/output specs exceed the powerlab 8 and your new powerlab 6. you may want to read the manual for that charger. I think you can synchronously charge by connecting both outputs to the one battery like the icharger does. the icharger will output 70a in synchronous mode.

@advancednutritioninc908 5 жыл бұрын

Great Video! Great Idea and Build !! And thank you for showing your supply links!! Liked!! and Subbed !!

@MrLunithy 5 жыл бұрын

Cool he found the hobby king forums .... happy for ya mate :).

@hellspawnfpv8363 5 жыл бұрын

Really nice setup!!!

@ljprep6250 5 жыл бұрын

Ooh, a Magic Smoke Release video! Cool. Always fun, Jehu. (Shouldn't that read $100, including smoke release?

@johnnyrobinson8168 5 жыл бұрын

Thanks for posting!

@cxxaner 2 жыл бұрын

If both of them weren't isolated power supply they wolud have blown up. How did you checked are they isolated or non-isolated

@michaelmendez8516 4 жыл бұрын

How would you make a battery pack that would fit inside a full size home mechanical sewing machine? Like a singer model 6215 That would last at least 4 hours. Please help !

@asc556 5 жыл бұрын

Those ps can be modified to increase the Vout 1 volt at least. That will give you 26v or more. Thanks for share.

@asc556 5 жыл бұрын

www.rcgroups.com/forums/showthread.php?1301679-Hp-DPS-800gb-a-power-supply/page11

@victoryfirst2878 5 жыл бұрын

If you would use DEANS WET NOODLE WIRE 12 gauge you would be able to not worry about overdriving the wire. Just a suggestion.

@thecombatengineer7069 5 жыл бұрын

If you series or parallel any chargers (power supplies) you better check their Freq and make sure they are the same. If you take two switch mode PSUs on different freqs and run them as a single unit, bad things will happen. In short, unless they are identical units, or you have some knowledge, don’t try this at home.

@olds97lss 4 жыл бұрын

I've been scrolling through your videos trying to find the one where you modified the PSU to power up but I can't find it. I've tried this with 2 PSU's so far. One popped and died after pulling 30A from it for 3 minutes. It was a DPS-1200FB. The second, a HSTNS-PL11, worked fine the first time after I modified it, but then after I powered everything off and tried charging again a couple days later, the PSU's green led would blink on/off and the output would go from 12.2V to 0V repeatedly and annoy the chargers. The 3rd was also a DPS-1200FB works fine if I don't load it up much. Even 15A was too much for it as it shut down after 13 minutes. For both, I was using a resistor between pins 32 and 35. On the DPS-1200FB, I used a 750ohm, on the HSTNS-PL11 I used 2 750ohm in parallel (375ohm), then like I mentioned, it turned on and seemed to work fine the first time only. I'm just trying to charge my lipo's for my RC trucks. I run 2 chargers off of it, both set to charge at 15A, so probably pulling between 32-35 amps overall.

@fsevilla1 5 жыл бұрын

great hack i have the sam ps with a isdt q6plus for my Rc toys

@joshuasidwell4682 5 жыл бұрын

Nicely done! I believe you can't go higher on the amps because the charger is smart and it knows that the battery is almost fully charged. So it won't push too much power into the battery at that point so that is doesn't harm that battery. If you discharge the battery down to about 50%, you should be able to push more amps. That is what I have seen with the smart chargers that I have worked with. You could discharge it and give it a try. Just my thoughts. Again thank you for what you do, you do a great job! Also did you ever go any further on your "Hoverboard Wheels" board and where able to get it to go faster with overvolting or re-winding them?

@rich1huss 5 жыл бұрын

Hi Joshua, my thought exactly. At about 90% SOC the charger switches from constant current to constant voltage charging.

@Mindcoach1on1 2 жыл бұрын

Do you still have these Revo chargers

@robertfreund7525 5 жыл бұрын

Thank you. Big like

@voyagertechnologies 5 жыл бұрын

This is done right,last video was cringy and misleading.

@jehugarcia 5 жыл бұрын

Mislead?

@voyagertechnologies 5 жыл бұрын

jehugarcia Yes i commented on previous video aswell, the title was blaming the supply..However the powersupply did well over its specification,also its 1300W if its supplied 220AC, on 110 it outputs less current. Can you please double-check the comments on your previous video and change the title ?

@jehugarcia 5 жыл бұрын

You are crazy, I didn’t blame the power supply, I simply stated that I used it

@voyagertechnologies 5 жыл бұрын

jehugarcia Bro ,i love your videos and respect you.. Keep an open mind "How to RUIN a $300 charger with $25 POWERSUPPLY" and you're telling me you didn't blame the powersupply

@voyagertechnologies 5 жыл бұрын

jehugarcia Tons of people come to your channel for advice,i know not everybody watches full videos (i know i always don't) and that title is a bit misleading towards the powersupply specially because it outperformed itself and the charger was the one that gave up,because you put too much pressure on it (it had to boost the voltage and maintain respectable current output)

@thecombatengineer7069 5 жыл бұрын

Jehu: shorten those leads brotha, even with nice ass 8 AWG wire as you raise the current you end up with looses in the wire (aka heat). Design then to be a short as possible. Put fuses between the two PSUs and another one to the battery. If that Tesla battery backfeed bro, bad day...

@federicotheironlyportrait 5 жыл бұрын

Hola! I'd been watching your videos about the DIY Emergency Solar Generators... do you know if there're still families without electricity at Puerto Rico? Thanks, Fede

@miege90 5 жыл бұрын

I think it didn't reach 37 Amps because the battery was almost fully loaded. You would need to drain it so it can charge faster...

@TOTISPYDER 5 жыл бұрын

NICE ONE BUT LOOKS LIKE THE DOGS GOT HOLD OF YOUR CABLES ON THE LEFT

@nishadalifromsaudi6016 10 күн бұрын

Can use this 2.6 hp 24v dc motor winch

@webdev217 5 жыл бұрын

LOL @ the dog chewed scissors!

@scotthenderson4376 2 жыл бұрын

going to build my fist lithium pack 48v 280amh what would you recommend to charge top balance it. also ideas for a bench power supply?

@Lagggerengineering 5 жыл бұрын

But I really wouldn't advise anyone to split the power cable and put 2 connectors on it, just use 2 of them and a power splitter or something. Just don't hack into mains stuff unless you really need to.

@MiesvanderLippe 5 жыл бұрын

The earthing stuff is really odd too. It's not like they sit insulated in a server rack either. Videos like this - especially as descriptive as these - should come with more warnings. Edit; I'm not pro rubber-tile-society but this video looks like a tutorial, but it definitely lacks a lot of background information.

@TauCu 5 жыл бұрын

As long as one of the PSU's are bound to earth they will not short with each other and they will be grounded, As the GND plane of the output is, well, actually grounded.

@Lagggerengineering 5 жыл бұрын

Tau Well that's the thing, as long as. As long as people actually follow the instructions, as long as no mistakes are made, etc. Mains stuff is dangerous, I stand behind my statement, you shouldn't hack into mains unless you really need to or have enough electrical skills to do it safely.

@TauCu 5 жыл бұрын

Lagger Onesixfour Without taking risks, Many things would slow down to a crawl, Just make sure you check for mistakes by others first. I didn't really care much of the split power cable, I just want to make sure that they grounded the unit. Dust collects in those units, Without ground, they can give you a wicked shock. Or perhaps my version of electrical safety is a little dull as I work on repairing valve PA's and old testing equip that can have ~500 volts on exposed terminals. Hey, I'm still here.

@FranseFrikandel 5 жыл бұрын

The reason for this is that you have to insulate the power supply, as normally the ground output of the power supply is earth referenced. If you then connect 1 supply's 12V to the other's ground you've just shorted the supplies together. You can only run them in series once they're isolated from ground

@mrbmedic1 3 жыл бұрын

So I'm running a 20S LiPo for my electric scooter. I'm going to build about 8 more 20S-4P batteries to replace my lead acid batteries. Right now I'm using a cheap Chenzhen Energy BMS. Any suggestions on a good BMS and charging system? I have a ton of different BMS's I got from Amazon but only the one I'm using had a wiring diagram.

@superburritotime8720 5 жыл бұрын

Think I’m gonna get that charger!

@ismailozcelik1662 2 жыл бұрын

Se lam is it possible to charge various types of batteries and from 20a to 150a with this power supply

@nowanda2nd 5 жыл бұрын

Do not put two switch mode power supplies in series unless you make sure the rectifying diodes on the output can handle at least twice the output nominal voltage.

@RAYROTHSTEIN66 2 жыл бұрын

The series of these will make 24v at 1000 watts, parallel will give you 12v 2000 watt.

@peterbe8090 5 жыл бұрын

Interesting!

@thebackyardjunkerscientist7732 5 жыл бұрын

Yeah i seen last video i was laughing with you lol

@Davelightuptheworld 3 жыл бұрын

so i have a 14s24p Li ion battery with a standard 5A charger and if my BMS supports for example 30A Chargepower i can use a charger with 30A safely at home? samsung 25R cell btw

@pablohernandez9240 5 жыл бұрын

Its the breaker the wall outlet you plugged that in to. Try a 30amp or 40. Bro you do great work keep it up brotha I love watching your videos.

@dvveloza 3 жыл бұрын

I dont get why there is a need for second power supply. Can someone explain? Want to make a charging station with an ISDT P20 charger

@jehugarcia 3 жыл бұрын

To make it 24v it doubles the power output

@jamest.5001 5 жыл бұрын

I have 3 of the zanfare chargers. Going through 12 cells 3 times a day. And a 500watt atx powering a few tp4056, I haven't used the tp4056 in a while. I only have 400 cells to test. Maybe I should get the 4056 to precharge the cells. And only test the cells in the zanfare testers. I also have a few discharge testers. It would be nice to do about 25-50 at once!! I need to get more if something. I have likely 3000+ cells to go. Before this project is done! Then there is more projects. Ev likely.

@OswaldBeef 5 жыл бұрын

JAMES! Since the 70's what you need all that power for? What you running?

@shawnfanning8519 5 жыл бұрын

Good job

@appk5884 4 жыл бұрын

Can i connect five SMPS in series and dc to dc step down to 54.6v to charge 48v (13s) lithium pack or four SMPS in series and use step up to 54.6v?

@blazeinthesky130 3 жыл бұрын

That’s awesome

@sheadjohn 5 жыл бұрын

think about your house. 12 gauge is fine for 15amps. Those are also very short distances. check the temperature of the cables and the voltage drop.

@Bear-cm1vl 5 жыл бұрын

House wiring is a different configuration, John. Most US home branch circuits are 15A 120V over 14 AWG single conductor (solid wire) where battery configurations are more commonly carrying DC power over multi-strand (conventional stranded wire) and even poly-strand (speciality cable like welding conductors), helping with current conduction and heat dissipation as well as vibration and flexibility. Find a good DC wire rating chart to confirm the correct size rather than the AC charts in residential building code (mine are from one of the cable manufacturers I buy from) and make sure the insulation can handle the heat level (much of the work I do is under car hoods and I prefer 150°C/300°F insulation as a safety factor).

@nikolainelson7235 5 жыл бұрын

How did u wire it up?

@2awesome292 5 жыл бұрын

If you were to flip the 1 power supply 180degrees would it help any having the edge connectors closer?

@adventurious1234 5 жыл бұрын

nice.....

@peterwan小P 5 жыл бұрын

come on that is a server power supply of course that must include some thing like over current or over voltage or something like that in order to protect the server itself from blowing up. but still a really nice video.

@cajolansang3231 2 жыл бұрын

can we go as high 72v to charged a battery pack?

@Jarmezrocks 5 жыл бұрын

Can you put the power supplies in series to bump it up to 24v on the input side to and loose the headroom of wattage output of the power supplies? Could 4 be used and 2 in series then 2 in parallel for redundancy? Are server UPS good power inverters?

@ejonesss 4 жыл бұрын

can you simply cut the ground prong on the power supply to isolate board?

@tedhancock68 4 жыл бұрын

Yes, but then you lose your Earth ground. You want to isolate the board from the chassis only. If you lose your Earth ground, the whole case could easily become directly connected to mains.