Originally Posted by

**juliep**
Hmmm...I didn't realize there was a limit of amp hours. That is unfortunate. Maybe I can appeal to TSA as this is medically necessary. Thanks also for the calling them in advance part.

Well, I might have hope then, as this is not a car battery, but a leak-proof AGM battery. And it is also for a medical device. Thank you. I might call them or try to reason with them at the airport.

You still far exceed the 100 watt hours limit.

https://www.tsa.gov/travel/security-...-wet-batteries
*Non-Spillable Wet Batteries*

Carry On Bags: Yes (Special Instructions)

Checked Bags: Yes

No more than two spare non-spillable wet batteries are allowed as long as each battery does not exceed 12 volts and 100 watt hours.
How do I determine the watt hours (Wh) rating of a battery?

A3. To determine watt hours (Wh), multiply the volts (V) by the ampere hours (Ah). Example: A 12-volt battery rated to 8 Amp hours is rated at 96 watt hours (12 x 8 = 96). For milliamp hours (mAh), divide by 1000 (to get to Ah) and then multiply by the volts.