**Temperature Test: iPhone 15 Pro Max Charging with Various Adapters**

I recently had the opportunity to test the temperature of an iPhone 15 Pro Max charging with various adapters, including a stock iPhone charger and a MagSafe adapter. The goal of this experiment was to see how the phone's temperature would affect its charging speed.

Initially, I placed the iPhone 15 Pro Max on the charger and allowed it to charge for 30 minutes. The charger was set to about 29-30 degrees Fahrenheit or 86-85-86 degrees Fahrenheit around the outside of the adapter. To my surprise, the phone's temperature remained relatively cool, with a temperature reading of 92°F after 14 minutes of charging.

However, as the charging continued, the phone began to heat up, and the charger's temperature also increased. At the 30-minute mark, the phone was still feeling warm, but not unbearably so. The temperature sensors in the phone had likely kicked in to regulate its internal temperature.

One notable point of interest is that the phone's charging speed slowed down significantly as it heated up. After 14 minutes of charging, the phone had only gained 22% charge at a rate of about 6-7 watts. This suggests that the phone's thermal management system may be limiting its charging speed to prevent overheating.

To further investigate this phenomenon, I decided to take some measurements using a thermometer. The back of the phone was found to be quite hot, with a temperature reading of approximately 99.5°F (37.4°C). This is not uncommon for high-performance smartphones like the iPhone 15 Pro Max, but it's still worth noting.

Next, I switched to an older-style MagSafe charger that could deliver up to 18.5 watts of power. To my surprise, this adapter was able to charge the phone more quickly than the stock adapter, especially after it had cooled down slightly. The charging speed increased to around 10-12 watts once the charger's temperature had stabilized.

However, I did notice that when using the new MagSafe adapter with a braided cable and the same power source, the charging speed was still limited by the phone's thermal management system. After plugging in the new adapter, I saw the typical ramp-up period of about 14 minutes before reaching its maximum charging capacity. Interestingly, this charger was able to deliver the same results as the original MagSafe adapter with a braided cable.

**Charging AirPods and Apple Watch**

Finally, I decided to test the adapter's ability to charge smaller accessories like AirPods and an Apple Watch. Using the new MagSafe adapter with the braided cable, I was able to deliver up to 18.5 watts of power to the phone and still manage to charge my AirPods Pro case at a rate of around 1.1 watt.

However, when attempting to charge my Apple Watch Ultra 2 using the same adapter, I didn't see any noticeable increase in charging speed. It's likely that this charger is not designed for charging Apple Watches, as they require specialized chargers with specific power ratings.

**Conclusion**

In conclusion, it appears that even with a MagSafe adapter and a braided cable, the iPhone 15 Pro Max's thermal management system can still limit its charging speed due to overheating concerns. While the new charger was able to deliver slightly faster charging speeds than the stock adapter once it had cooled down, there is still room for improvement.

If you're looking to charge your iPhone at slower speeds or want to avoid the risks associated with excessive heat buildup, I would recommend sticking with a 20-watt charger like the original MagSafe adapter. The trade-off may be slightly reduced charging speed, but it's worth avoiding potential thermal damage to your device.

"WEBVTTKind: captionsLanguage: enhi everyone Aaron here for zolot and with the introduction of the iPhone 16 Series this past week Apple introduced an allnew magsafe compatible charger this new Charger looks very similar to what we had before but it offers not only ch2 compatibility but offers 25 watt charging on specific phones so I thought we'd take a look at it compare it with the original charger that I have here and see what it's capable of now this comes in at $39 for 1 M that we have here or $49 for a 2 m version let's go ahead and open it up the packaging looks pretty much the exact same and also Apple no longer sells the original version so if we open this up we'll take a quick look here see what it looks like we've got some product information in here so a couple different information Regulatory Compliance and limited warranty nothing else inside the box and then the charger itself this time around is actually braided oh we also have safety and handling as well but we have a braided charger and that's how you can tell the difference so you'll see this one on the left here is the previous one where it's not braided the new one has a braided cable so let's go ahead and remove this so it's all paper packaging this comes out like this there we go and then we have the new cable let me set the packaging aside so everything else is the same but we have an all new cable on it braided just like we have with different cables Apple has offered in the past so they're USBC to USBC cable now what makes this different is it actually is capable of up to 25 watts now you will need a 30 W adapter or higher so I have one here Apple's official 35 watt adapter that you can see here and also if you charge it at a slower 20 watts it's capable of doing the same thing the previous adapter was so basically 15 watts on iPhone 12 and newer or 7.5 wats on iPhone 8 and later using a 20 watt adapter so if you have a 20 WT adapter still around whether that's from homepod or something else you can still use it with the latest charger so let's go ahead and plug this in now I've run my iPhone 15 Pro Max down to 133% we'll go ahead and plug it in and see how long it takes to charge see if it makes a ton of heat and see what it's like so I don't think it will charge this one at 25 watts but I thought we'd test it out as if you do have an iPhone 16 with 25 watts you can actually charge it to 50% in 30 minutes now I also have a meter I'm going to put in line to see what kind of speeds we get or power we get I've plugged this side into my 35 watt adapter we'll plug the other side into the meter here it should turn on and then we'll place this under the iPhone and begin charging so let's go ahead and connect the mag safe adapter we'll go ahead and charge it for about 30 minutes we're at 14% currently and let's see what we get so we should climb to 15 watts we shouldn't be able to reach 25 watts with the latest adapter except on the iPhone 16 models so you'll see it's climbing to 10 watts and you can see the actual wattage here it should hit maybe 15 at the most but it's going to depend on the overall battery and there's temperature sensors as well so we're just about at 15 watts now and it looks like it's still climbing a little bit going up and down so you'll see it hits 17 Watts 18 Watts so maybe we can charge at 25 on this device let's go ahead and see what it does here so we're currently charging at 18.5 Watts so that's actually coming from this meter here it's passing through it letting us know the wattage so we're getting higher than 15 watts on here which is a little bit unexpected but again let's give it a few minutes see if it actually increases at all now after 5 minutes of charging we're still at 18.5 Watts so it's still pushing a faster speed than expected let's see if the iPhone's any hotter or anything so we'll flip it over here it's still connected and we'll take a look at the overall heat so on the back here we're at about 85° fah or 31° C in certain places around the outside of the charger right around 29 to30 or about 86 to 85 to 86° fah so it's surprisingly cool still it's still staying nice and nice and cool just sitting here it's just a stock iPhone 15 Pro Max running iOS 18 so again we'll continue to let it charge we'll let it charge for 30 minutes and see if this actually drops down at all at about 14 minutes we've dropped down to about 14 watts so there's temperature sensors in here from what I understand and the phone definitely feels a bit warm now so if we take a look with the temperature here we're now at about 92° F and the charger itself is 97° fah or 37.2 de F between 35 and 37 so definitely much much warmer I would expect it to slow down maybe it will increase again but again let's give it 15 more minutes and see what it does at the 30 minute Mark we're at about 6 to 7 Watts or so we've only gained 36% charge from 14 so 22% and the back of the phone is very hot so let me go ahead and measure that just one more time here you'll see we're at about in the middle about 37.4 de C or 99.5 de fah the charger itself is quite warm so the charger is 99° or 37.2 de C so very warm overall and whether or not it's worth using such a large adapter for this I'm not sure so just using this adapter is what I have here you'll see it's just the 35 watt I probably would stick with the 20 watt if you just want to charge at slower speeds that might save your battery on the older devices as they get really hot but we did hit 18.5 Watts now that that this is cooled down let's remove this here and let's switch over quickly to the older style that's capable of 15 watts and see if we get anything higher as everything sort of cooled down so we'll go ahead and connect this here give it just a moment to ramp up and start charging and let's see if we get any higher speeds since everything's sort of cooled down we should be able to deliver a little bit better speeds but not better than 15 watts I would think at this point so at this point we're staying right under 10 wats with this adapter now I've plugged this back in let's go ahead and try out airpods now my airpods Pro are at a higher state of charge at 100% these are currently 84% with the case so if we place them on the charger we should be able to charge the airpods case itself and we're at about ramping up to 1.1 watt so I would not expect this to go very fast as we're close to a high state of charge but in general you can charge airpods with it I don't think you can charge an Apple Watch with it this is an Apple Watch Ultra 2 let's try it out though I doubt that you can charge it but I figur we'll try it and with the Apple watch I would not expect this to charge though you'll need an Apple Watch specific charger for it but you can charge the airpods on an Apple Watch charger again with the old adapter I'm at 12.5 watts or so so let's go ahead and disconnect this one we'll plug in the new adapter with the braided cable same power source and let's see if we can get the same thing so see if we can bump right back up to 18 so we'll give it just a moment here and see if we get the same results and you'll see just after a few moments we're right back up to 18.5 Watts or so so the new one is definitely a little bit faster on the same charger so that's pretty much all there is with the latest mag safe of course we have the braided cable as a way to sort of determine which version you have but if you have the old charger I'd probably stick with it especially on the older devices as you won't actually want to charge much faster due to Thermal issues on the newer iPhone 16 models they supposedly solved some of this with a new thermal design and we'll have to test that out let me know if there's anything else you'd like me to test with the charging or anything else different adapters I'd love to hear from you in the comments below of course I'll link this wallpaper in the description like I normally do and if you haven't subscribed already please subscribe and if you enjoyed the video please give it a like as always thanks for watching this is Aaron I'll see you next timehi everyone Aaron here for zolot and with the introduction of the iPhone 16 Series this past week Apple introduced an allnew magsafe compatible charger this new Charger looks very similar to what we had before but it offers not only ch2 compatibility but offers 25 watt charging on specific phones so I thought we'd take a look at it compare it with the original charger that I have here and see what it's capable of now this comes in at $39 for 1 M that we have here or $49 for a 2 m version let's go ahead and open it up the packaging looks pretty much the exact same and also Apple no longer sells the original version so if we open this up we'll take a quick look here see what it looks like we've got some product information in here so a couple different information Regulatory Compliance and limited warranty nothing else inside the box and then the charger itself this time around is actually braided oh we also have safety and handling as well but we have a braided charger and that's how you can tell the difference so you'll see this one on the left here is the previous one where it's not braided the new one has a braided cable so let's go ahead and remove this so it's all paper packaging this comes out like this there we go and then we have the new cable let me set the packaging aside so everything else is the same but we have an all new cable on it braided just like we have with different cables Apple has offered in the past so they're USBC to USBC cable now what makes this different is it actually is capable of up to 25 watts now you will need a 30 W adapter or higher so I have one here Apple's official 35 watt adapter that you can see here and also if you charge it at a slower 20 watts it's capable of doing the same thing the previous adapter was so basically 15 watts on iPhone 12 and newer or 7.5 wats on iPhone 8 and later using a 20 watt adapter so if you have a 20 WT adapter still around whether that's from homepod or something else you can still use it with the latest charger so let's go ahead and plug this in now I've run my iPhone 15 Pro Max down to 133% we'll go ahead and plug it in and see how long it takes to charge see if it makes a ton of heat and see what it's like so I don't think it will charge this one at 25 watts but I thought we'd test it out as if you do have an iPhone 16 with 25 watts you can actually charge it to 50% in 30 minutes now I also have a meter I'm going to put in line to see what kind of speeds we get or power we get I've plugged this side into my 35 watt adapter we'll plug the other side into the meter here it should turn on and then we'll place this under the iPhone and begin charging so let's go ahead and connect the mag safe adapter we'll go ahead and charge it for about 30 minutes we're at 14% currently and let's see what we get so we should climb to 15 watts we shouldn't be able to reach 25 watts with the latest adapter except on the iPhone 16 models so you'll see it's climbing to 10 watts and you can see the actual wattage here it should hit maybe 15 at the most but it's going to depend on the overall battery and there's temperature sensors as well so we're just about at 15 watts now and it looks like it's still climbing a little bit going up and down so you'll see it hits 17 Watts 18 Watts so maybe we can charge at 25 on this device let's go ahead and see what it does here so we're currently charging at 18.5 Watts so that's actually coming from this meter here it's passing through it letting us know the wattage so we're getting higher than 15 watts on here which is a little bit unexpected but again let's give it a few minutes see if it actually increases at all now after 5 minutes of charging we're still at 18.5 Watts so it's still pushing a faster speed than expected let's see if the iPhone's any hotter or anything so we'll flip it over here it's still connected and we'll take a look at the overall heat so on the back here we're at about 85° fah or 31° C in certain places around the outside of the charger right around 29 to30 or about 86 to 85 to 86° fah so it's surprisingly cool still it's still staying nice and nice and cool just sitting here it's just a stock iPhone 15 Pro Max running iOS 18 so again we'll continue to let it charge we'll let it charge for 30 minutes and see if this actually drops down at all at about 14 minutes we've dropped down to about 14 watts so there's temperature sensors in here from what I understand and the phone definitely feels a bit warm now so if we take a look with the temperature here we're now at about 92° F and the charger itself is 97° fah or 37.2 de F between 35 and 37 so definitely much much warmer I would expect it to slow down maybe it will increase again but again let's give it 15 more minutes and see what it does at the 30 minute Mark we're at about 6 to 7 Watts or so we've only gained 36% charge from 14 so 22% and the back of the phone is very hot so let me go ahead and measure that just one more time here you'll see we're at about in the middle about 37.4 de C or 99.5 de fah the charger itself is quite warm so the charger is 99° or 37.2 de C so very warm overall and whether or not it's worth using such a large adapter for this I'm not sure so just using this adapter is what I have here you'll see it's just the 35 watt I probably would stick with the 20 watt if you just want to charge at slower speeds that might save your battery on the older devices as they get really hot but we did hit 18.5 Watts now that that this is cooled down let's remove this here and let's switch over quickly to the older style that's capable of 15 watts and see if we get anything higher as everything sort of cooled down so we'll go ahead and connect this here give it just a moment to ramp up and start charging and let's see if we get any higher speeds since everything's sort of cooled down we should be able to deliver a little bit better speeds but not better than 15 watts I would think at this point so at this point we're staying right under 10 wats with this adapter now I've plugged this back in let's go ahead and try out airpods now my airpods Pro are at a higher state of charge at 100% these are currently 84% with the case so if we place them on the charger we should be able to charge the airpods case itself and we're at about ramping up to 1.1 watt so I would not expect this to go very fast as we're close to a high state of charge but in general you can charge airpods with it I don't think you can charge an Apple Watch with it this is an Apple Watch Ultra 2 let's try it out though I doubt that you can charge it but I figur we'll try it and with the Apple watch I would not expect this to charge though you'll need an Apple Watch specific charger for it but you can charge the airpods on an Apple Watch charger again with the old adapter I'm at 12.5 watts or so so let's go ahead and disconnect this one we'll plug in the new adapter with the braided cable same power source and let's see if we can get the same thing so see if we can bump right back up to 18 so we'll give it just a moment here and see if we get the same results and you'll see just after a few moments we're right back up to 18.5 Watts or so so the new one is definitely a little bit faster on the same charger so that's pretty much all there is with the latest mag safe of course we have the braided cable as a way to sort of determine which version you have but if you have the old charger I'd probably stick with it especially on the older devices as you won't actually want to charge much faster due to Thermal issues on the newer iPhone 16 models they supposedly solved some of this with a new thermal design and we'll have to test that out let me know if there's anything else you'd like me to test with the charging or anything else different adapters I'd love to hear from you in the comments below of course I'll link this wallpaper in the description like I normally do and if you haven't subscribed already please subscribe and if you enjoyed the video please give it a like as always thanks for watching this is Aaron I'll see you next time\n"