The 45W charger used to target the consumer who was looking for a quick boost, a quick top up in 30 min... But now, with only a 6% difference at 30 min, it's not even worth it
@@JupiterGuy1 a lot of laptops already come w/ a USB C charger as standard. my last 3 laptops ive bought myself and spouse over the last ~6 years plus my last 2 work laptops over the past 5-6 years all have USB C chargers. They're pretty common now
Samsung should optimise 45W charging even more better with proper updates n all, technically they can maintain 30-35w without much heating for atleast 70-75% to get faster charging speeds than 25W
It's not the 45W charger that's the problem, it's the phone itself. It's the phone that determines how much mAmps it's drawing. You could see through the whole charging that the phone wasn't drawing a stable mA throughout that it did on the 25W charger. This is done by Samsung to reduce battery temps, since they don't want another LiPo catastrophe on their hands.
Exactly! His testing needs improvement. You could clearly see the 45w charger dips under 15w a lot while the 25w charger was more stable, allowing it to catch up at around 65% battery. My 45w charger charges my s24 0-25% at 45w, 25-65% at 34w, 65-80% 22w, 80-90% 15w, 90-95w at 8w and the last 5% at 3w. This is the reason the slower charger can catch up after the battery is at 80% I charge my phone from 15-80% in 30 mins. That's what the super faster charger is for, a quick 30 min boost. 1hr charge for that last 20% is not worth.
@@paigow66what improvement? Do you want him to root the devices and get rid of the logic gate keeping the battery from overheating? The test is perfect!
@Vordigon1 if you blow cool air on the phone, it will not thermally throttle the charging to what seems to be 35C limit. You might have to remove cases which limit heat dissipation to get best charge. You would hope that PD would vary the charging voltage so that the phone doesn't have to DC-DC convert the voltage to what the pack needs and therefore save heat in the charging circuits. Note also that EVs charge fastest when they are close to empty, and slow down to 1/3 towards the end, even with liquid cooling.
@@paigow66 my 45w charger charges s8plus tablet with 10000 mA battery much faster than 15w charger charges 4000 mA on my samsung galaxy s10plus. So 45w works fine.
I would recommend getting the FNB58 or Power-Z for measuring power consumption. The one you used is decent but not very accurate, at least according to the reviews I've read. Also, my phone supports 25w Max, but it rarely goes that high even when I'm charging from 0%. (I think Samsung likes to play it safe with charging speeds as well as Apple, unlike other brands. Faster charging speeds come at the cost of battery life too) It usually plays at 19-20W up until 60-70%, then it drops to 15-18w. At 90%, it ranges between 7-11w. At 95%, it drops to 5w. This is when I'm using a peltier cooler to keep the phone temperature at 30-33°C. Without the cooler, the wattage drops quicker at about 40-50% because the battery, CPU area, and the charging port area heat up significantly fast. CPU temperature gets to 40°C sometimes
Same as EV's innit...higher wattage is best for short bursts when the battery level is low...but the charging speed lowers towards the end with this battery chemistry. Still, if im at 25% and i need a quick juice up for 20mins or so... ill be going for my 45w over the 25w...
65w would be cool, but I wonder if itd actually be much faster charging. If it would hit 65w for a few seconds before dropping way down like the 45w does, whats the point? Is samsung being overly aggressive on the charge rate to control temperatures? Maybe they need to do a dual cell battery config. Great video nonetheless !
They're playing safe just like apple with higher wattage charging. Pumping more amps into a battery reduces battery life faster in the long term. Only use fast charging if you really have to.
@MZRTMusic254 may be the case to an extent. Though that's playing really safe when competitors are 2-3x faster charging. Some even claim it won't effect longevity anymore than normal at those very fast charges
@Jtwizzle I'm yet to find evidence or research disproving that fast charging doesn't degrade battery life. I doubt the phone companies themselves would do it because they wouldn't make as much money advertising fast charging if it kills their batteries faster. The split battery method over higher charge input is a better choice. The tradeoff, though, is space, and that means you lose features. My sister used fast charging all the time for her Huawei phone. After 1½ years, the battery life reduced noticeably. That's fast degradation for a 5000mah battery. Normally, it would take 2 years, and even so, the degradation wouldn't be that noticeable. Even so I can't be 100% sure because there's too many factors to consider. I hope there's a breakthrough for batteries because that's what's holding back Mobile devices right now. Or at least that's what I think
@MZRTMusic254 Yeah, to many factors. 1.5 years if used heavily, could be near 2 charge cycles a day. That could be a ~15% capacity loss right there. Keeping it at 100% for long periods and discharging it very low often are also not good. They generally claim that after 600-800 cycles, the battery will have 80% capacity left. I usually start to notice a drop in battery life after around a year, averaging 1 cycle a day. Definitely do need a breakthrough battery tech, hopefully soon !
As an A33 5G user that was Charging at 25W, wow that was a shock against 45W but it could help save money and wont need charge for rush time. but in reality 45W was still the best charger to use normally.
For those who wonder, 45w is much better but Samsung don't allow it to use above 30-33w. So it doesn't use it's fullest potential unless samsung allows it to.
@@vladpaloukotis Because the phone is only drawing that much power. Just because a power supply/adapter can supply up to 45 watts doesn’t mean that’s how much the load is. The charger is in the phone, not the power supply. The charging and power management circuitry will determine how much power it can send into the battery and how much it needs to run the phone (say, if you’re using the phone and charging the battery at the same time), and it will only draw that much power from the power supply. You could plug it into a 60W or 90W USB-C laptop power supply and it wouldn’t make a difference.
@@raghib2954 dont post comments without knowing.i asked you to send me the official link that samsung says it doesnt allow more than 30 watts and you talk nonsense
@@vladpaloukotis lmao, it's you who's talking nonsense. I literally have an s22+ which supports 45w. And there's already proof in the comment which i posted.
That's weird. My s24U got to a full charge from zero in an hour and 2 mins using the 5a cable. I got a free 45w charger with cable and pro2 galaxy buds with 512gb green s24U for 600$ after trade-in. However, if i was going to buy a charger, i would just go for the cheaper 25w
Your video just came on time. I was even disappointed when the 45w power adapter went out of stock in Shop Samsung app during the pre-order period. So I was shopping around. I actually noticed that my 25w charger charges my s24U around 70 mins or so. Now, I can delay buying a power adapter that could charge up multiple devices.
@kalyansuman6533 yes I'm sticking with the 25w charger. A difference of around 10 mins of charging time is not big, especially since i only charge my phone about 90% to keep the battery last for years. Might also be one reason why samsung doesn't see the need to give higher charging capacity for their flagships yet, unlike many others offering up to 100+ watts
I actually got the 45w for free when I ordered my s24 ultra. I was trying to get the 25w, but it was out of stock so I opted for the 45w and I'm not disappointed. I'm fine with the 45w as long as I get a quick charge on my phone when its low on battery.
@@Marshmallow-RNG seeing that the 45w charger almost costs more than double the 25w charger its not worth the price difference especially if the 25w is outperforming it in half hr and one hr
Xiaomi 120w, 10min charge 50% to 100%. battery still holds after 2years. But now i bought Samsung 24u, so this feels like going from broadband to 56k modem xD.
@@LoverOfTech If 120 w is possible then why not ? They are pushing the charging speed.Definitely not overkill. This will force other companies to improve charging rates.
I mean I can get myself one 45W to charge it in a pinch, but 25W wall charger and my 15W car charger will be just fine. Thank you!! Cheers from Croatia!!
To enable the Supet Fast Charge 2.0 is necessary a 5A cable, the cable that comes in the box is a 3A cable. We aren't going to see a significant difference in charging speed compared to the 25W if you use a 3A cable for the 45W.
I am using Portronics Adapto 65 with this charger my S23U charges from 0-100 in just 51 minutes. But after the January update it is 5-6 minutes slower now. Also the charger is cheaper than Samsung 45 watts. It comes with two type c ports and 1 usb a combined 65 watt with support of super fast charging 2.0 + super fast charging
Hi Bro, Can you tell me the product name which Portronics charger you are using, as their as 3 with different names, plus, pro and the X. Thanks In advance.
Yep i have long suspected there was little to no difference between the 25w and 45w chargers in actual real world application thats why im still using my old 25w charger from the s9
The 45 Watt only charges up to 20% than it drops the watt low as 15 watt. So it doesn't make much of a difference compared to 25W except you need a quick charge
The S24 Ultra charged to 100% with the 15W charger in about the same time it took the Note 8 to charge to 100% (1hr40mins with Qualcomm QC2.0). Once it's deemed safe, I would like Samsung to introduce faster charging, but the phone tech has clearly improved since the S24 Ultra (5000mAh) is charging in the same time as the Note 8 (3300mAh)
I have a 25W charger from my S21Ultra that I decided to keep for now on my S24Ultra. I started looking into a 45W charger for my S24U, but from everything I've seen there is no real point for me to do so. I'm a casual user of my phone. I don't vlog, I'm not on it 24/7 like many people are nowadays. On an average day I'll be down to 50-60% charge at the end of my day. I plug it when I get home and by bed time it's already charged. I don't get it low enough to need a super fast boost quickly, so it looks like this 25W charger will be keeping it's place on my wall for a while.
Thanks for this great as I just picked up a S24 So the cable you used was from the box, which is classed as a 25w cable? Did you try a 45w cable with the 45w cable? If you did what was the result?
Thanks for the comparison. I pre ordered S24 Ultra and trade it from A54, they have same 5000 mAh battery and I've been using the 25W adapter. Guess I won't need to buy the 45W adapter lol
It's a crime to mention SUPER FAST and Samsung in the same comments. What's fast about 1hr 8, minutes? What more super fast , when you have OnePlus charging 40 minutes wirelessly and 29 minutes from zero to 100. Oppo, Vivo , Relme Xiomi . Those are phone with super fast charging spend not the snail Samsung! That won't include the charger in the box. In fact I was to sell my S24ULTRA and get a vivo or OnePlus.
Great video , This phones has been locked to their designated cables. I have Huawei p30 pro with 65w cable and charger , to my greatest surprise it's slower on my note 20 ultra compared to 25 Watts charger that comes with the phone. So the problem isn't the charger but the cable. If you have higher Watts charger you also need cables that your phone is compatible with.
Cable can be designated? I thought they just handle different wattages, how can they be phone specific. I have a 100W cable, 45w & 25w charger feels about the same to me too
Mine S24 ultra with 45-watt original samsung adapter with 5A cable fully charged my phone under 55 minutes. In 10, 20,30,40,50, 55 minutes charged the phone to 26%, 51%, 72%,88%,96% and 100% respectively. So i think there is some issue with your charger or cable.
@@LoverOfTechis it possible that your measurement device affected the readings or added too much voltage drop (current sense resistor)? If SC2.0 modulated the voltage like latest PD3, that can affect the possibility of the voltage boost circuit kicking in to get the exact pack voltage for best current, causing extra heat in the phone (you were 35C limited on 45W and 25W). Can you try to redo the 45W without the monitor, just to see the time:percentage? I will try as well, with and without monitor, if I can make sure I actually have 5A cables.
Thanks! 45w barely makes sense when just getting some quick boost. But maybe if you tried starting at 20% it would matter if you just need a boost? Dunno what heat limit they have set. 40c internal?
It's not worth buying the 45w charger for the sake of a few minutes quicker than the 25w version. Also you can buy two 25w for the price of one with plenty of change to spare from official sellers! I have a few Samsung chargers up to 25w. I mainly use the chargers that came with my previous Samsung phones and tablets which are fast enough. I only use the 25w if I need a quick top up. This is to preserve the battery long term.
One more, very important, Samsung directive on getting the Superfast Charging to work: “For super-fast charging, you must have a charging cable that supports adaptive fast charging with a capacity of 45W - 45W TA + 5A cable (E-marked),” and: “You will also need a 45W Travel Adapter. Super-fast charging will not function with a standard charger. We recommend using the USB Type-C, 5A charging cable that comes with the 45W charger.” I'll emphasize E-marked cable and theTrave Adapter addition to the charger for it to work. Did you do that? To all those thinking that the full 45 watts is not used, all the conditions above have to be fulfilled for the full 45 watts to be used.
I think samsung know if they make higher W chargers the phone will get too hot and damage the battery in the long term, until samsung figure out to keep the phones at a steady temperature, they won't make the phones higher W compatibility.
If you going all in on samsung(tablet, phone, laptop, watch, earbuds..), just get the new wireless charger with builtin matter bridge and a two port 150w anker device that supports 25/45/65/100w .. that will allow charging 3 samsung devices at once
I want Samsung to add support for something like 80W supervooc charging like Oneplus has. You won't be affected if you don't want to use it. I want charging speed while I'm at work pulling overtime. Thank you.
Wanted to see why my S24 Ultra charged so slowly, and at under 10% battery it charges at 40 watt and dips to 6 watt at 90% something. With a 10w charger it takes 6+ hours to charge, 24w its 2½-3 hours. But with a 45w with fast charge/dp it takes slightly over an hour.
Same story as 5 years ago with the Note 10+ (which I currently replace by an S24U): Almost no difference in charging time when doing a complete charge (I think the diifference was 10 minutes). High Wattage can only be used if it is almost empty. But what I found astonishing were other things: 1. The Note 10+ never came even close to 45W. It maxed out at 35W and struggled to go above 30W. From the video I see that the S24U can go above 40W so this looks good to me 2. Even 25W could only be had with a special charger that can speak PPS. The 45/35W needed an even more rare PD PPS Power supply that can deliver above 3A (4A to be more precise - most Do PPS only below 3A, even if they have PD Profiles with 5A) and this also needs an active cable with an E-Marker Chip. If you use a "normal" PD Charger with fixed Profiles you are limited to 15W. I suspect this is the same with the S24U. So in reality the iphone often charges faster than the Samsung, because it can reach its 20W with any standard PD Charger or PC Port. 3. Fast charging only works with the screen off, so you cannot use it while fast charging. That can be a problem in car use. I wonder if that is the same for S24U. In reality the phone charges fast enough even with 25W - but the above limitations really are annoying (a suitable PPS Charger is hard to come by, for powerbanks it is very hard). EDIT: I have found a charging graph on the very good (though in german language) site: techtest.org/wie-schnell-laedt-das-samsung-galaxy-s24-ultra-und-welche-ladestandards-werden-unterstuetzt/ Here you can see that 45W are only reached for the first 5 minutes. Another 15 minutes at or above 30W and everything below the 23rd minute of charging are below 25W. I suspect that this is not related to the charging time per se but battery State of charge. So most of the time above 25W are never reached. EDIT No 2: Apparently Samsung got it right this time - Even with a standard PD Charger without PPS you can reach charging speeds of almost 25W (23W actually). So for the S24U you do not really need a fancy and rare PPS Charger anymore - that is a good thing and the most important Aspect IMHO. And I the other culprit is also gone now: You can happily charge fast with the screen on! My shiny new S24U currently charges with 32 Watts while the screen is on and using apps like e.g. gmail
Its software based If I use 65 watt or 45 watt and 35 watt charges its always charge in between <a href="#" class="seekto" data-time="67">1:07</a> to <a href="#" class="seekto" data-time="75">1:15</a> Mintues with S23 Ultra and all chargers are different two are from Samsung..
I've been using a 65W apple charger to charge my phone and ive been getting very poor battery backup from my new phone (12% consumption in 28 minutes of browsing only). I made sure no background apps were running. What can I do?
Make sure to cycle your phone from 100 to about 1%. It takes about 6 days for my battery to be good doing that each day. No charging unless it’s around 1%.
One of the best thing in the S24 ultra is the battery life and therefore you don't need this boost charging during the day. I'm usually go to bed with 50% battery.
Charging speed decreases when you reach a high battery percentage. I only charge mine to 80 percent, so I prefer the 45W for a quick boost. But for someone who charges to 100 percent, either the 45W or 25W is good in my opinion.
That 45w charger seemed to be overheating the device or its overheating itself. It kept going down to 15 watts. If it was consistent it would reach the 70s in 30 mins
ESR Glass for 24 Ultra is very strong, maybe I will also try the case. I experienced some throttling with 45W original charger and cable on the 24 Ultra. My 23 Ultra takes 7 minutes more with the 25W.
I set my battery to 80% as full charge and charge it at dinner time or at bed time. I like the slow charge so I can get the longest battery life over the life of the phone. I have the 45w and the cable it comes with and I never use it. Is there any chance that that wattmeter adapter might be throwing something off?
@@LoverOfTech RU-vid is a rough crowd, lol. Your reviews and videos are great, keep it going. You could do the test w/ the 45w rated cable w/ out the adaptor and w/ adaptor just to see if the wattmeter skews results?
I just bought a 45 watt charger for my phone cause it was taking a while to charge at startup. Guess i shouldnt count out my 25 watt charger just yet. Thanks for the video. Was waiting for something like this to come out.
IMO 25W is enough for everything, heck I just charge at 25W when I want a faster charge, most of the time I charge with 15W, don't know what all the hype is about charging with 100+W on phones, that just destroys the battery.
Not these days, Oneplus has 80W charging and they have less battery degradation than iPhone. It's all about heat management and throttling and we've pretty much perfected that now. I could be wrong, but I think Oneplus moved some of their fast charging tech to the brick instead of inside the phone so the brick heats up but the phone can maintain the same 80W charging while using it without heating up... But I feel you, 25W charging is enough for me to shower and get ready and have enough to last a night out and then some
@@LoverOfTech You should disable all network interfaces to reduce delta in power consumption. Or even better, just turn of the phone. This way remove the variables from the equation.
I don't think you're taking into account. The adaptive chip in the individual charger is measuring the heat resistance in the cord. And throttling how many Watts it's actually charging. That could be different depending on the manufacturer
Cannot measure heat in the cord, but maybe just the connector temperature. I don't see that sensor exposed anywhere. For sure the battery temperature is a limiting factor.
Can you please tell me i want to maximize my new s24 uktra’s battery life. Should i use a 25 watt charger or a 45 watt charger i think a 45 watt charger will damage my battery?
is it just me but when i do charge my ultra with a old 10w charger 5v 2amps I See my phone last longer or is it placebo? any one? it does take almsot 2hours to full charge but after regular use i go home at 6PM with 60% battery compared to less than 30% when i do Super fastcharge.
Excellent video. BTW, the usb tester seems reversly connected with the phone. The Input of the tester is connected with the phone. Is this way of connection correct?
Thanks sir ,i have purchased s24 ultra , i was so confused which charger is best 25 w or 45 watt, but i have seen your videos ,confusion is cleared , but for my satisfaction pl seggest me which charger is better battery life 25 w or 45 w .
Samsungs slow down charging so much once it reaches higher percentages. Kinda like Apple. I understand it's to preserve battery health, but it would be nice if there was an option to disable it.
Ya but the when it's not reducing charging speed etc the difference between 45w and 25w is marginally less than 15w - 25w and the difference is smaller. Makes no sense at all. Feel like we are definitely not getting 45w charging. If we were it should be 35-40 min charging from 0-100.
what is that limits the loading speed of the 45w? is the charger or the mobile phone? is it possible to test with another 45w charger like an Anker? thank you and good video.
I have a couple of questions to ask first. When I first got my S24 Ultra (I just upgraded from an S9+, so I didn't know, it didn't come with a charger). So I charged my phone with my old battery pack and charger, which was a Samsung fast charger. I noticed that my battery was dying a lot faster when I charged it that way. So, it would be great to test the battery runtime between all three phones. I also have a question: does it matter if I'm using an extension cord with my 45W charger? I bought a 45W charger, and it doesn't say "Super Fast Charging 2.0"; it only says "fast charging." It says it takes an hour and 45 minutes to fully charge, but it seems to charge much faster than that. Also, I'm using text-to-speech on my Samsung S24 Ultra, and man, this is accurate! Also generated my spelling and grammar through the ai option. Im in love with this phone
I still use the s22 ultra (2 years ago). I bought the EP-T4510 and the charging speed is very fast around 56 Minutes for full charge. But its a feature i use only a few times. Normally i charge the phone between 20% till 85% on very slow charge setting.
4 or 5 years ago when my mom got the S10+ I bought her an ESR case with the kick stand and it was pretty good ngl. My S9+ charges faster even with a 15w 😎(because batter degraded to like 60% health)
