Southwest Airlines Carry-On Restrictions: New Rules For Portable Chargers

Kenji Nakamura

4 min read

Post on May 24, 2025

4.6

Share

Southwest Airlines Carry-On Baggage Allowance

Before we get into the specifics of portable chargers, let's review Southwest's general carry-on baggage allowance. Understanding these overall limits is essential before packing your electronic devices.

Size and Weight Limits

Southwest Airlines generally maintains consistent size and weight restrictions for carry-on bags, regardless of the aircraft type. However, it’s always advisable to double-check before your flight.

• Dimensions: The maximum size for a carry-on bag is generally 24 inches x 16 inches x 10 inches (length x width x height). Remember to measure your bag carefully!
• Weight: Southwest doesn't specify a weight limit for carry-on bags, but they strongly recommend keeping your bag lightweight for easy handling. Overly heavy bags might be subject to gate checking.
• Exceptions: Passengers with disabilities or special needs may be granted exceptions to these size and weight restrictions. Contact Southwest Airlines customer service in advance to discuss your specific needs.

Number of Carry-on Bags Allowed

Southwest Airlines allows one carry-on bag per passenger, plus one personal item. Understanding the difference between these two is vital.

• Carry-on Bag: This is your standard roller bag or duffel bag within the size limitations described above.
• Personal Item: This is a smaller item like a purse, briefcase, laptop bag, or small backpack that fits under the seat in front of you. Size restrictions for personal items are generally less stringent but should still be reasonably sized.

Specific Rules for Portable Chargers and Lithium Batteries

Now, let's address the specifics of carrying portable chargers and lithium batteries on Southwest Airlines. These items require special attention due to safety regulations.

Allowed Battery Types and Sizes

Southwest Airlines, in line with TSA regulations, permits lithium-ion batteries in carry-on baggage. However, there are limits on their size.

• Watt-hour Rating: The maximum allowed Watt-hour (Wh) rating for portable chargers and spare batteries is generally 100Wh. Batteries exceeding this limit are typically prohibited in carry-on luggage. Always check the rating printed on your battery.
• Spare Batteries: Spare lithium-ion batteries should also be carried in carry-on luggage, never in checked baggage. They should be individually protected to prevent short circuits.

Proper Packing of Portable Chargers

Proper packing is essential to ensure the safety and longevity of your portable chargers.

• Original Packaging: If possible, keep your portable chargers in their original packaging. This provides extra protection.
• Protective Case: If you don't have the original packaging, consider using a protective case to prevent accidental damage or short circuits.
• Prevent Accidental Activation: Ensure the power switch is turned off to prevent accidental activation during transit.

Regulations Regarding Power Banks

Power banks fall under the same regulations as portable chargers. There's no distinction in Southwest's policy.

• Size and Wattage Limits: The same 100Wh limit applies to power banks as it does to other portable chargers.
• Checked Baggage: Power banks, like other spare batteries, should never be placed in checked baggage due to the risk of fire or damage.

What Happens if You Violate Carry-On Restrictions?

Failing to adhere to Southwest's carry-on restrictions can lead to several issues.

Consequences of Non-Compliance

Non-compliance with baggage regulations can result in:

• Fees: You might be charged fees for oversized or overweight carry-on bags.
• Gate Checking: Your bag might be gate-checked, meaning it will travel in the cargo hold and you won't have access to it during the flight.
• Security Delays: Prohibited items could lead to delays at security checkpoints. Be prepared for potential delays and extra scrutiny.

Conclusion

This guide summarized Southwest Airlines' carry-on restrictions, focusing on portable chargers and lithium batteries. Understanding these rules ensures a smoother, stress-free travel experience. Remember to check the Southwest Airlines website for the most up-to-date information before your flight, as regulations can change.

Call to Action: Before your next flight with Southwest Airlines, double-check their carry-on restrictions for portable chargers and other electronic devices to avoid any surprises at the airport. Plan ahead and travel smart!