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Folks, keep in mind that you're doing this to something containing a lithium battery. If it explodes, your hot case is going to get far hotter. Please be cautio

Folks, keep in mind that you're doing this to something containing a lithium battery. If it explodes, your hot case is going to get far hotter. Please be cautious. A brief FAQ list to address the predictable replies: Q: But it hasn't burned anyone! Yet. Q: It won't, obviously! And yet, it might. Q: Nonsense! You're thermally overclocking a physical object that happens to contain enough charged lithium to kill a small household. Q: I know what I'm doing! Then you put a "heat warning" sticker on the top cover, right? Q: Of course not, that would make it ugly. And anyways I don't have one. So you're consciously choosing not to take appropriate safety precautions? Q: They're not appropriate. You don't know what you're doing. Q: Safety precautions aren't that big of a deal, it's just a few degrees warmer! Are you familiar with the phrase "served as a lesson to us all"? Q: A comment on the Internet said that it's safe to use my bare legs as heatsinks. "Served as a warning to others". Q: But I know how to apply thermal paste properly! All the better to injure yourself and your property with. Q: I have the right to modify my own objects! And, in return, you grant those objects the right to harm you if your modifications introduce drawbacks. Q: That's impossible! Nothing's impossible when it comes to people modifying things while thinking they know better. Q: It's so low of a likelihood that I'm willing to take my chances. That's your right, as long as the object isn't in the vicinity of other human beings at any point in its modified life.

soganess 6y ago
While you are right and I applauded your caution. It is also fair to note that no (electronically non-conductive) heat dissipation mod is likely going to cause a runaway thermal event hot enough put the kind of stress you are talking about on a battery, at least not on an M1 Air. If you were using liquid metal and it caused a short, sure, but that is a regularly occurring issue with liquid metal. This is an electronically non-conductive thermal pad with, what do you figure, a 5w/mK thermal conductivity? On a device that probably never cracks 15w peak. And you can bet if it does, it would only sustains that output on the order of seconds. That said, I'm all for stopping unskilled people from attempting unsafe things. But then again, doing those sorts of things would sum up my hobbies neatly.
- floatingatoll 6y ago
  Your comment gives me hope that this is safe. I wish I’d seen one like it sooner, or I might have been less cynical about this out of the gate. It just stresses me out to see people going in blind. You’re not. Thank you.
rowanG077 6y ago
This comment greatly depresses me. You are pretending as if batteries are volatile bombs. They are not. They can generally handle temps of upto 55 degrees fine. And guess what. They include thermal sensors. This mod is so low risk for the battery it might as well be almost 0.
eqvinox 6y ago
You're vastly overestimating the temperature sensitivity of lithium batteries. They explode due to short circuits (allowing the stored energy to be quickly converted into heat, also heating the battery itself in the discharge process), not a simple warm-up to 60°C. For comparison, leaving your laptop (or cellphone) on a car's dashboard on a sunny day is more dangerous than this; with very bad luck (and dark colors) you can almost get water boiling there. (Quick googling says 90-95°C.) FWIW though the higher temperatures will degrade the battery quicker. . For reference: (tested at 130°C, safety limit at 100°C, operational up to 60°C) https://www.orbtronic.com/content/samsung-35e-datasheet-inr18650-35e.pdf https://www.orbtronic.com/content/samsung-35e-datasheet-inr1... 9.4 Heating Test Test method: To heat the standard charged cell at heating rate of 5°C per minute up to 130°C and keep the cell in oven for 10 minutes. Criteria: No fire, and no explosion. ... 8.7. Caution - The Battery used in this device may present a risk of fire or chemical burn if mistreated. Do not disassemble, heat above 100°C or incinerate. ... The battery can be used within the following temperature ranges. Don't exceed these ranges. Charge temperature ranges: 0°C ~ 45°C Discharge Temperature ranges: -10°C ~ 60°C Store the battery at temperature below 60°C

soganess 6y ago

While you are right and I applauded your caution. It is also fair to note that no (electronically non-conductive) heat dissipation mod is likely going to cause a runaway thermal event hot enough put the kind of stress you are talking about on a battery, at least not on an M1 Air. If you were using liquid metal and it caused a short, sure, but that is a regularly occurring issue with liquid metal. This is an electronically non-conductive thermal pad with, what do you figure, a 5w/mK thermal conductivity? On a device that probably never cracks 15w peak. And you can bet if it does, it would only sustains that output on the order of seconds. That said, I'm all for stopping unskilled people from attempting unsafe things. But then again, doing those sorts of things would sum up my hobbies neatly.

floatingatoll 6y ago
Your comment gives me hope that this is safe. I wish I’d seen one like it sooner, or I might have been less cynical about this out of the gate. It just stresses me out to see people going in blind. You’re not. Thank you.

rowanG077 6y ago

This comment greatly depresses me. You are pretending as if batteries are volatile bombs. They are not. They can generally handle temps of upto 55 degrees fine. And guess what. They include thermal sensors. This mod is so low risk for the battery it might as well be almost 0.

eqvinox 6y ago

You're vastly overestimating the temperature sensitivity of lithium batteries. They explode due to short circuits (allowing the stored energy to be quickly converted into heat, also heating the battery itself in the discharge process), not a simple warm-up to 60°C. For comparison, leaving your laptop (or cellphone) on a car's dashboard on a sunny day is more dangerous than this; with very bad luck (and dark colors) you can almost get water boiling there. (Quick googling says 90-95°C.) FWIW though the higher temperatures will degrade the battery quicker. . For reference: (tested at 130°C, safety limit at 100°C, operational up to 60°C) https://www.orbtronic.com/content/samsung-35e-datasheet-inr18650-35e.pdf https://www.orbtronic.com/content/samsung-35e-datasheet-inr1... 9.4 Heating Test Test method: To heat the standard charged cell at heating rate of 5°C per minute up to 130°C and keep the cell in oven for 10 minutes. Criteria: No fire, and no explosion. ... 8.7. Caution - The Battery used in this device may present a risk of fire or chemical burn if mistreated. Do not disassemble, heat above 100°C or incinerate. ... The battery can be used within the following temperature ranges. Don't exceed these ranges. Charge temperature ranges: 0°C ~ 45°C Discharge Temperature ranges: -10°C ~ 60°C Store the battery at temperature below 60°C