Can I Use a Charger With the Same Voltage but Different Amperage Rating?

Рет қаралды 69,027

Күн бұрын

⚜️ Chargers and power supplies come with different Voltage and Amperage ratings. But if you can't find the same, then choosing the right one is important. I'll look at a few of the parameters.
In Short:
For power supplies or chargers:
* The voltage must match.
* The amperage must match or exceed that required by the device.
* The polarity of the connection must be correct.
* The input line voltage (wall or “mains” power) must be supported, but is unrelated to compatibility with the device being charged or powered.
Updates, related links, and more discussion: askleo.com/5276
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Chapters
0:00 Compatible Chargers
0:30 The question
0:58 The rules
2:41 Voltage
3:55 Amperage
5:37 Polarity
7:18 Input voltage
8:26 Recap
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❤️ My Most Important Article: go.askleo.com/number1
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#askleo #Chargers #Voltage

Пікірлер: 363

@askleonotenboom 3 жыл бұрын

Volts and amps combine to confuse. Understanding how they work can help clear it up.

@jmstaudacher 2 жыл бұрын

Thanks Leo!!

@chinmayamalik5849 2 жыл бұрын

Thank you, Sir. Respect from India

@ogasama6028 Жыл бұрын

About wiggle room, Can I use a 250V 10A charger as a replacement for 220V 5A charger?

@askleonotenboom Жыл бұрын

@@ogasama6028 Those are the charger's line/input numbers. Usually lots of flexibility there. What matters most is the output that's going in to the device you're charging. Those numbers are important.

@obeyr8232 Жыл бұрын

One of the confusion questions we asked regarding choosing power connector

@timsmith2525 4 ай бұрын

"Amperage is drawn, not pushed." That's the clearest explanation I have ever heard. Thank you!

@JoshuaTrenge 2 ай бұрын

Yes.. I never understood this… until now. Thanks Leo!

@TheSlyProfessor Жыл бұрын

I am a college music professor looking to teach this subject in class and you explained it perfectly. I’ve been searching for an explanation like this for a long time. Thank you!

@katierose1893 2 жыл бұрын

6:17 That "center negative" or "center positive" polarity diagram for barrel connectors was so helpful! I looked at the brick part of the adapter and it was right there! In plain sight!! Many thanks!

@abdulbasitdalvi3963 2 жыл бұрын

A lucid and to the point explanation. Loved it. Keep up the good work.

@wilhard45 6 ай бұрын

Well done. My Elmer who coached me for my general license presented voltage and amperage in virtually the same fashion. He has been a silent key for nearly 30 years but listening to you brought back my memories of him. It is odd that something so simple confuses so many people. I now find myself eager to watch more of your videos. 73's

@nathenholzl6970 2 жыл бұрын

Thanks for your time I've been working in electronics for a long time. And this is the first clarification I've really heard

@michelpapineau8868 Жыл бұрын

Thank you for making this! This is exactly what I was looking for. Super helpful and well done.

@tomwatson283 Жыл бұрын

Excellent. Only just seen this video. Very clearly explained, and best explanation I've seen. Can't understand why other videos have to complicate things.

@morniclegreen3534 2 жыл бұрын

Thank you! This is exactly what I was looking for. Very helpful

@gershwyndaniels3903 3 жыл бұрын

I watch a few different IT guys. Each of them are different. But you Leo.......... You really take us to class..

@bernardomacara6284 2 жыл бұрын

hey thanks leo, i always had this doubt about the amperage, thank you

@rasmusrge1560 8 ай бұрын

Thank you, sir. Simplicity is the ultimate sophistication...!

@rushikeshkurhade12 6 ай бұрын

short and simple and elegant explanation , thank you

@adrianmaravilla7068 2 жыл бұрын

Thank you so much sir, I am grateful to you, with this I can finally finish a project, and solve a doubt I had for years.

@javiersidel4794 2 жыл бұрын

Thanks, man. I learned a lot with this video. You are the best!

@dannyschacht4274 Жыл бұрын

Thank you for educating me to this question that I've had forever.

@user-nl1kg4fe1y Жыл бұрын

sir...the way you explain is so great...you keep repeating the importance point..which it had deep eatching deep in my memory..thank

@eondiax 2 жыл бұрын

Thank you sir, your explanation is very clear and easy to understand. It really helps.

@JimE6243 3 жыл бұрын

Thanks Leo! I learned something again. Always was confused about the amperage thing. JimE

@squidlad Жыл бұрын

Thanks so much for this. Really succinct and easy to understand.

@MarinongInhinyero 2 жыл бұрын

Thank Sir Leo, You explain everything i want want to hear.

@IndyJay53 5 ай бұрын

This is so helpful and easy to remember! Maybe now I can trim down the pile of various old usb chargers I have lying around too.

@sightlines9293 Жыл бұрын

Thanks Leo. Just the info I have been looking for.

@TangibleTania Жыл бұрын

Thank you...this has made what I have learned even clearer. Very nice video.

@MrHadimajed 2 жыл бұрын

This was super helpful and informative,thanks sir!

@judderman333 Жыл бұрын

Thank you sir, you have explained this so well. I have taken this in, very helpful.

@marwanbenayedi4511 7 ай бұрын

Thank you for sharing your knowledge and time 😊

@when-ali Жыл бұрын

Straight to the point.. excellent!..

@zxc-is1ln 2 жыл бұрын

Thanks Sir! Such a great help, thanks a lot again!

@samplify17 9 ай бұрын

You've explained very well!

@praxisdev1884 3 ай бұрын

All questions answered. Thank you so much.

@Maine307 2 жыл бұрын

thank u! man this can get confusing. than you soo much! even here in 2022, this still helped me greatly

@onkelhiphop Жыл бұрын

Thank you so much this was really easy to understand keep up the good work🤘😎

@AkaSarp 6 ай бұрын

I was on my computer and looking for an answer for this subject, you explained it simple and easy to understand that i had togot my phone to like, subscribe and comment on the video. Thank you soo much. 🙏

@brianclark8052 9 ай бұрын

Great information. Thank you. This is why KZfaq can be such a powerful learning aid, but it does not work without the support of professional like you.

@tao6775 Жыл бұрын

Very helpful, thanks!

@marianitomacela1829 Жыл бұрын

Thank you my case is 12. Volts 3.33 Amp the old one.. and the replacement is 12 volts but 5 Amp. God bless and kudos

@stephencshapiro 8 ай бұрын

Great explanation. Thank you!

@TheDonMan97 6 ай бұрын

Damn! This was spot on! Thank you

@pdab4372 Жыл бұрын

Great explanation and video.

@JoshuaTrenge 2 ай бұрын

My wife brought home a Samsung Freestyle Projector… from her clients trash! (Worth about $300). It didn’t work but I noticed it had an 9v Apple charger with it. I bought the correct Samsung 20v charger and it works like a champ. Knowledge is power… or in this case.. money!

@tiddlypom2097 Жыл бұрын

Thanks this is such a good explanation!

@Ukepa Жыл бұрын

good (reminder) video. my oem replacement charger doesn't have a polarity indicator but it works.

@chaosparticles Жыл бұрын

Thank you so much! Very clear

@swesleyharris 3 ай бұрын

Thank you, this was so helpful !

@GustavoMsTrashCan Ай бұрын

Very well explained. Thank you sir.

@PeteBuchwald 4 ай бұрын

Good tip on the polarity. Thanks for all this info. I admit that I only skimmed this video looking to answer my primary question, but am wondering if AC vs DC is discussed, sometimes I see "switching."

@NALTOHQ Жыл бұрын

I needed to know this, as im getting some Vtech consoles and Vtech power adapters are INSANELY hard to find or expensive.

@chona123 Жыл бұрын

Thak you! Big queston with clear answer.

@-AishwaryaKadam Ай бұрын

Thanks for nice and clear explanation. My confusion is solved. Regards.

@duuude21 2 жыл бұрын

I could like the video 10000000 times if possible... you are the best!

@timknight5105 Жыл бұрын

Great info thanks!

@shadowpapito Жыл бұрын

Thank you ...It is greatly appreciated ...

@cars654 4 ай бұрын

Also important is to plug the power supply into the device first and then into the wall outlet to avoid a surge that could damage your device. When your done unplug the power supply from the wall outlet and then unplug from the device being used.

@timharig 4 ай бұрын

I have to disagree with that. Power supplies, whether linear or switching contain reactive elements (coils and capacitors). When the power supply first turns on, those devices go through a transient period while they reach a steady state. It is during that transient period that anything bad could happen such as inductive voltage spikes that could potentially damage a device. Likewise, when the device loses power, it again goes from a steady state to a transient state while the reactive devices discharge. Once it has reached a steady state, it will regulate the voltage normally. The WORST that could happen while it is running steady state is that the device attempts to draw to much instantaneous power as might happen during the transient while the device is first plugged in. When that happens, the output capacitor buffering the voltage (present on any kind of related power supply) will be drained too quickly causing drop in voltage -- if the power supply isn't designed to be able to handle the power. A drop in voltage might disrupt the device for a moment; but, it will not damage the device the way that a voltage spike could. So in theory, to be as safe as possible, you should always plug the power supply in first and then plug the device into the power supply once it has reached steady state. Likewise, disconnect the device and then unplug the power supply so that it is not subject to any during shutdown transients. In reality, none of this should be important. A well engineered power supply should be designed to effectively filter the transients or to inhibit voltage output until the transients have subsided. That is why some higher power supplies with large active components may take take a few seconds to power on. When they do, you will hear the click of a relay enabling the power output. That relay is timed based on the length of time that the circuit transient needs to subside. So as long as you purchase power supplies from reputable brands, you shouldn't have any trouble. After all, what would happen during a power glitch? Your power supply and device would have to through power down and then power up transients. If you buy a cheap chinesium power supply from EBay, the engineers might not have spent enough time designing around the transients.

@cars654 4 ай бұрын

Jumble of B.S. I have been working in electronics for over 50 years. Worked on everything from radar, ICP, GCMS,ICPMS and have seen many devices powered by the beloved WALL WART destroyed by not proper plug in sequence. But this is what you can expect form a theory guy who has never worked in the real world. I guess I was not specific enough ! Have you ever seen a circuit board loaded with CMOS chips get destroyed by static electricity. Switching power supplies cannot handle transient spikes. It may be better now but in the 80s and 90s. We had to replace 5 power supplies in GCMS units because of power surge. Go online and see all of the power line conditioners on the market as well as C.V.T. units for 120, 220 and 440 volt three phase ! Equipment costing 100k or more with power supplies from CHINA that are amazing if the last 5 years !@@timharig

@Packhorse-bh8qn 3 ай бұрын

@@timharig Exactly right, sir.

@Packhorse-bh8qn 3 ай бұрын

"Also important is to plug the power supply into the device first and then into the wall outlet to avoid a surge " Electrical engineer here. You have it exactly backwards. Plug it into the wall first.

@marvingutierrez1232 8 ай бұрын

Thank you for making it clear. 👍

@davebautista 2 жыл бұрын

Thank you so much for this video.

@ourmundo Жыл бұрын

Wow! This was an amazing answer!

@sagebadger9800 2 жыл бұрын

Thank you so much!

@reynaldofigueroa7881 2 жыл бұрын

You answer my question!! Thank you

@sunny100bd 8 ай бұрын

Thank Leo. I'm helped, got my answer

@bastianagi7778 8 ай бұрын

Really good explanation

@aantayagiri2976 Жыл бұрын

Thank you very much for this video’ Now i am clear about the A..

@zaneaguilar5274 2 жыл бұрын

Thanks Leo!

@ganeshv5580 2 жыл бұрын

Thank you very much!

@preciousjames 2 жыл бұрын

Answered. Thank you!

@PaoloVarquez Жыл бұрын

Super helpful

@6969Noman6969 2 жыл бұрын

Thanks was helpful

@justojus8376 2 жыл бұрын

Good explanation

@drkfuture1305 Жыл бұрын

wow a lot of info. thanks a lot

@jimty2140 2 жыл бұрын

you are an absolute life saver

@TheZolja007 8 ай бұрын

Thanks, nicely explaind for us how are new in this 🙂

@josele479102003 Жыл бұрын

thank you very helpful.

@maxjvl 3 ай бұрын

thanks for the knowledge

@aymenzidane7130 2 жыл бұрын

Thank you so much.

@ChaoticMuchX Жыл бұрын

thank you leo, very informative

@dansanger5340 Жыл бұрын

At the risk of confusing things further, it might help some people with an analogy to demystify what voltage and current (amps) are. The analogy isn't perfect, but helpful in some situations. The analogy is with water in pipes and hoses. Voltage is analogous to water pressure (PSI or Pascals). Current is analogous to flow of water (gallons per minute or liters per minute). The computer is analogous to an "appliance," such as a lawn sprinkler, that you attach to a faucet with a garden hose. And, the power supply is analogous to the faucet connected to the garden hose, limiting the flow of water (current) that goes to the sprinkler. That's why the water pressure (voltage) has to match what the lawn sprinkler can handle. If the water pressure is extremely high, then it might blow out the sprinkler, damaging it. If the water pressure is lower than the sprinkler is designed for, then the sprinkler doesn't operate correctly, dribbling water out and probably not rotating as designed. The results are similar if the flow of water supplied is less than what the sprinkler needs and is designed for.

@quebrandomitos5910 Жыл бұрын

this analogy just explain the voltage part of the thing not amperage. And actually I believe you are referring to wats and not volts in this analogy.

@joefranks4457 Жыл бұрын

Thanks a lot. A big help. I have a device that requires only 100ma but my power charger is 2amps. I feel safe now to use my power supply charger.

@ahmadbakrizubir 5 ай бұрын

Thank you!😊

@abhishekhyadav7795 Жыл бұрын

Very helpful 👌 ☺️

@judegarcia8633 Жыл бұрын

It's helpfull Leo!!!!!

@Drew-yx1rc Жыл бұрын

THANK YOU

@G1SUNPLANT Жыл бұрын

Thank you my friend!

@RaefLaabidi Жыл бұрын

Thank u very much !😍

@danishsarwar6066 Жыл бұрын

Very good and helpful video👍👍👍❤️

@prozied3170 2 жыл бұрын

Thanks a lot

@mauriciochapelle Жыл бұрын

Thanks 🙏

@Pequenosmotores 2 ай бұрын

good explication

@Acegram Ай бұрын

Thanks 👏👏👏👏 Voltage Must Match 💥amps only drawn not pushed 🎉🎉🎉🎉

@zingrinmakang8420 5 ай бұрын

Thank you sir .

@mail06513 3 ай бұрын

Thank you! Very clear and helpful explanation.

@RoastedSaltedPeanut 7 ай бұрын

This was so helpful! I went through a bunch of videos but couldn't make it past rhe 5 minute mark. I just wanted ti know if i can use my laptop charger to charge my phone. Thank you 🙏🙏

@hectorheath9742 Жыл бұрын

Thankyou.

@jonesen7792 7 ай бұрын

I fucking love this video. It answers the question so clearly I'm unlikely to ever need to watch it again. But I will be subscribing. Thank you!

@vishnuvichus1230 11 ай бұрын

Thank you soo much

@Poweradapter2023 10 ай бұрын

very cool, we make the interchangeable style 5W-65W .

@elektron2kim666 10 ай бұрын

I make a lot of USB DIY for myself and I decided to measure polarity more than once and maybe test it with a disposable light thing and a not so important power bank. I can lose some, but the expensive device is sad to kill and it happens quickly.

@jasserbaguio1981 Жыл бұрын

thanks man

@MechanizedFnnFntr 2 жыл бұрын

Great vid

@A4Avner 8 ай бұрын

Thanks, great explanation! clear & comprehensive. Question though, about 6:15 into your video you delve into polarity. What is the standard? center positive or negative & why would a vendor not use the standard, other than sheer hubris?

@askleonotenboom 8 ай бұрын

In my experience there's no real standard. Center positive seems the most common, BUT it's not something you can count on.