Can you bring spare lithium-ion batteries on Delta Air Lines?
Depends on your item
Short answer: In carry-on bags, it depends on battery capacity; in checked bags, it is not allowed (reviewed 2026-10-27).
Short answer: not available right now. Some of the rules below are being rechecked against their official sources, so we do not sum them up. The rules that are still current are listed below; check the official sources before you travel.
This page puts Delta Air Lines' own rules for spare lithium-ion batteries next to the security screening (TSA) and dangerous goods (FAA) rules for flights departing the United States. All of them apply at once when Delta Air Lines operates the flight, and you need to meet every one. Each rule is listed as its official source states it, with the date we last reviewed it.
Most recent review on this page: 2026-10-27.
What Delta Air Lines adds to the TSA and FAA rules
Delta Air Lines policy
Allowed, with the conditions listed
Spare lithium-ion battery on Delta: carry-on only, at most 160 Wh per battery and 20 spare batteries per person.
- Limits
- Battery capacity: up to 160 Wh
- Number of items: up to 20
Also note
- Batteries must be individually protected to prevent short circuit.
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: Delta Air Lines: Battery or Fuel-Powered Items. Reviewed on 2026-10-27.
Allowed, with the conditions listed
Spare lithium-ion battery between 100 and 160 Wh on Delta: no more than two.
- Applies when
- Battery capacity: at least 100 Wh
- Battery capacity: up to 160 Wh
- Limits
- Number of items: up to 2
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: Delta Air Lines: Battery or Fuel-Powered Items. Reviewed on 2026-10-27.
Other rules for spare lithium-ion battery in a carry-on bag on Delta Air Lines
Security screening (TSA)
Allowed, with the conditions listed
Spare lithium-ion battery rated up to 100 Wh: carry-on bags only.
- Applies when
- Battery capacity: up to 100 Wh
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: TSA: What Can I Bring?. Reviewed on 2026-10-27.
Airline approval required
Spare lithium-ion battery rated 101-160 Wh: carry-on bags only, with airline approval, up to two per person.
- Applies when
- Battery capacity: at least 101 Wh
- Battery capacity: up to 160 Wh
- Limits
- Number of items: up to 2
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: TSA: What Can I Bring?. Reviewed on 2026-10-27.
Dangerous goods (FAA)
Allowed, with the conditions listed
Spare lithium-ion battery rated up to 100 Wh: allowed in carry-on baggage.
- Applies when
- Battery capacity: up to 100 Wh
Also note
- Must be protected from damage and short circuit.
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.
Airline approval required
Spare lithium-ion battery rated 101-160 Wh: carry-on only, with airline approval, up to two per person.
- Applies when
- Battery capacity: at least 101 Wh
- Battery capacity: up to 160 Wh
- Limits
- Number of items: up to 2
Also note
- Must be protected from damage and short circuit.
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.
Not allowed
Spare lithium-ion battery rated over 160 Wh: forbidden.
- Applies when
- Battery capacity: more than 160 Wh
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.
Other rules for spare lithium-ion battery in a checked bag on Delta Air Lines
Delta Air Lines policy
Not allowed
Spare lithium-ion battery on Delta: not allowed in checked baggage.
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: Delta Air Lines: Battery or Fuel-Powered Items. Reviewed on 2026-10-27.
Security screening (TSA)
Not allowed
Spare lithium-ion battery: not allowed in checked bags.
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: TSA: What Can I Bring?. Reviewed on 2026-10-27.
Dangerous goods (FAA)
Not allowed
Spare lithium-ion battery: not allowed in checked baggage.
Being rechecked: we are comparing this rule with its source again, so it is not shown. Check the official source below.
Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.
Check your own spare lithium-ion battery
The item checker combines these rules for the values of your own item and gives a result for a Delta Air Lines flight. Battery rules use watt-hours (Wh): the Wh calculator works it out from the Wh, or the mAh and rated voltage, printed on the battery.
Related pages
- All spare lithium-ion battery rules (TSA, FAA and every airline)
- All Delta Air Lines rules we have reviewed
- Can you bring spare lithium-ion batteries on Allegiant Air?
- Can you bring spare lithium-ion batteries on American Airlines?
- Can you bring spare lithium-ion batteries on Breeze Airways?
- Can you bring spare lithium-ion batteries on JetBlue Airways?
- Can you bring spare lithium-ion batteries on Southwest Airlines?
Official sources
- Delta Air Lines: Battery or Fuel-Powered Items (source checked on 2026-10-01)
- FAA: Airline Passengers and Batteries (source checked on 2026-10-01)
- TSA: What Can I Bring? (source checked on 2026-10-01)
This page lists rules as the official sources state them, for travel departing the United States. It is not a decision about your item: security officers and your airline make the final call, and rules can change after the review dates shown. Destination customs and quarantine rules are not checked. See the terms and disclaimer.