Originally Posted by
bobert24
Whose limit is 1? TSA? Airlines? Your suggestion?
I usually have 2 with me on longer trips (one pocket-sized, one larger capacity). Just curious whose rules I'm breaking.
It's an FAA restriction.
The quantity limit (2 subject to airline approval) applies only to larger lithium ion batteries (101-160 watt hours per battery).
Pack Safe
Lithium ion and lithium metal batteries, spare (uninstalled)
Size limits: Lithium metal (non-rechargeable) batteries are limited to 2 grams of lithium per battery. Lithium ion (rechargeable) batteries are limited to a rating of 100 watt hours (Wh) per battery. These limits allow for nearly all types of lithium batteries used by the average person in their electronic devices. With airline approval, passengers may also carry up to two spare larger lithium ion batteries (101-160 watt hours). This size covers the larger after-market extended-life laptop computer batteries and some larger batteries used in professional audio/visual equipment.
Quantity limits: None for most batteries – but batteries must be for use by the passenger. Batteries carried for further sale or distribution (vendor samples, etc.) are prohibited. There is a limit of two spare batteries per person for the larger lithium ion batteries described above (101-160 watt hours per battery).