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According to [0] the limit in the US is 100Wh, so you could fit a battery that is three times bigger (assuming 3.3V). I don't know what the relevant numbers are

by fheld 7y ago

According to [0] the limit in the US is 100Wh, so you could fit a battery that is three times bigger (assuming 3.3V). I don't know what the relevant numbers are elsewhere. [0] https://www.tsa.gov/travel/security-screening/whatcanibring/items/lithium-batteries-more-100-watt-hours https://www.tsa.gov/travel/security-screening/whatcanibring/...

qubex 7y ago
Thanks, I stand corrected. Apologies for the mistake.
StillBored 7y ago
Actually it doesn't ban them, it just says that you don't need any special approval if you have less than two 100Wh batteries. Which is odd, because most people have more than two batteries if your counting batteries contained in devices like laptops/cellphones/etc. This regulation seems to apply only to standalone batteries. For context 100Wh is only about 2x most normal laptops. A few systems with secondary batteries (Thinkpads for example) come within 10-15Wh of the limit when configured into their max battery configurations (although in my case that is two batteries). I'm betting that is something you could actually walk through security with. I can't imagine the guys running the scanner are making estimates of battery capacity. For sure I've carried more than 200Wh worth of batteries before, considering for a while I was regularly traveling with two fairly high capacity laptops, a tablet, charging battery and cellphone. I'm also not the only odd ball with more than one laptop. Now that i've slimmed it back down to one, I regularly notice other people dragging out more than one.
- nicoburns 7y ago
  The 16 inch MacBook Pro has 99.8Wh battery...
- junar 7y ago
  The link says that only batteries above 100Wh count against the 2 battery limit. There doesn't seem to be any limit to smaller batteries.
  - StillBored 7y ago
    Your right, back to elementary school to work on my reading comprehension.
- skavi 7y ago
  High end 15+” laptops tend to go right up to the limit. The XPS 15 and MBP 16 both have ~100Wh.

by fheld 7y ago

qubex 7y ago

Thanks, I stand corrected. Apologies for the mistake.

StillBored 7y ago

Actually it doesn't ban them, it just says that you don't need any special approval if you have less than two 100Wh batteries. Which is odd, because most people have more than two batteries if your counting batteries contained in devices like laptops/cellphones/etc. This regulation seems to apply only to standalone batteries. For context 100Wh is only about 2x most normal laptops. A few systems with secondary batteries (Thinkpads for example) come within 10-15Wh of the limit when configured into their max battery configurations (although in my case that is two batteries). I'm betting that is something you could actually walk through security with. I can't imagine the guys running the scanner are making estimates of battery capacity. For sure I've carried more than 200Wh worth of batteries before, considering for a while I was regularly traveling with two fairly high capacity laptops, a tablet, charging battery and cellphone. I'm also not the only odd ball with more than one laptop. Now that i've slimmed it back down to one, I regularly notice other people dragging out more than one.

nicoburns 7y ago
The 16 inch MacBook Pro has 99.8Wh battery...
junar 7y ago
The link says that only batteries above 100Wh count against the 2 battery limit. There doesn't seem to be any limit to smaller batteries.
- StillBored 7y ago
  Your right, back to elementary school to work on my reading comprehension.
skavi 7y ago
High end 15+” laptops tend to go right up to the limit. The XPS 15 and MBP 16 both have ~100Wh.