Southwest Airlines allows passengers to bring Chargers on board when they comply with rules for carry-on and checked bags. Understanding how power banks, cables, and battery packs are treated helps travelers move smoothly through security and board without surprises.
This guide highlights key policies, safety considerations, and practical advice so you can keep your devices charged during your flight.
| Item Type | Allowed Location | Capacity Limits | Security Screening Notes |
|---|---|---|---|
| Portable Power Bank | Carry-on only | Up to 100 Wh | No more than 20 per passenger, declared if larger |
| USB-C or Lightning Charger | Carry-on or checked | N/A | No loose batteries, must be protected from damage |
| Laptop Charger | Carry-on or checked | N/A | Allowed in dedicated electronics bin |
| Battery Pack with Cells | Carry-on only | Under 300 Wh | May be restricted if damaged or recalled |
Carry-on Rules for Chargers and Power Banks
Southwest requires all power banks and portable batteries to stay in your carry-on luggage. You cannot place them in checked bags due to fire risk. Keep each power bank under 100 watt-hours or clearly declared between 100–160 Wh with airline approval. Individual passenger limits usually cap at 20 power banks per person.
Size and Declaration Guidance
If your power bank exceeds 100 Wh but is under 160 Wh, inform a gate agent before boarding. Label each unit with its rated capacity, avoid mismatched or no-name brands, and inspect for scratches, swelling, or exposed terminals. Damaged or recalled items will be denied boarding.
Checked Bag Considerations and Safety
While chargers for phones and laptops are allowed in checked bags, never pack loose batteries or unprotected power banks there. Ensure cables are coiled and secured so they do not snag during handling. Use a dedicated electronics organizer to reduce friction and prevent port damage.
Protecting Your Devices
Place chargers in a padded section of your carry-on and wrap cables around power bricks instead of twisting them tightly. Avoid storing items on top of power banks, and keep them at moderate temperatures to preserve battery health over many flights.
In-Flight Usage and Cabin Power
Onboard power sources vary by aircraft, and not every seat has an available outlet. Confirm availability with the crew before using a laptop or plugging in multiple devices. Consider a portable battery bank with a high mAh rating for long flights where outlet access is limited.
Best Practices During Flight
Use airplane mode when charging to speed up top-ups and reduce interference with aircraft systems. Keep cables short and tidy, and avoid daisy-chaining multiple power banks, which can overheat. Turn off or stow devices safely during turbulence to prevent damage.
Final Recommendations for Flying with Chargers
- Always carry power banks and chargers in your carry-on, never in checked bags.
- Keep capacities under 100 Wh or secure approval for 100–160 Wh units.
- Limit the number of power banks per passenger and do not share with other travelers.
- Inspect cables and batteries regularly for wear, and replace damaged items promptly.
- Use protective cases and cable organizers to prevent tangling and port damage.
- Confirm power availability with flight attendants before starting a long charging session.
- Enable battery monitoring on your devices to avoid unexpected shutdowns mid-flight.
FAQ
Reader questions
Can I bring a high-capacity power bank on board if I have airline approval?
Yes, power banks between 100–160 Wh may be allowed with prior airline approval, and they must remain in your carry-on.
Are there limits on how many phone chargers I can pack in my carry-on?
There is no strict count for standard phone chargers, but unusual quantities may draw additional screening questions from security.
What happens if my power bank is swollen or damaged at the checkpoint?
Damaged or swollen power banks will be confiscated at security, and you may not be allowed to board with that item.
Can I charge my device using the USB ports on the airplane seatback?
Use built-in USB ports with caution, verify they are working, and avoid using shared AC outlets without checking compatibility.