Short answer: Yes — you can carry a power bank on a flight in India, but only in your cabin bag, never in checked luggage. Power banks up to 100Wh (roughly 20,000mAh) are allowed without approval. Between 100Wh and 160Wh you need airline permission, usually limited to two units. Anything above 160Wh is banned outright. Most Indian airlines now also ask you to keep the power bank stowed and switched off during the flight rather than using it at your seat.
Why are power banks treated differently from other gadgets?
A power bank is a lithium-ion battery in a plastic shell. Lithium cells store a lot of energy in a small space, and in the rare event of a manufacturing defect or physical damage they can enter "thermal runaway" — a self-sustaining reaction that produces heat, smoke and sometimes fire.
That is the entire logic behind every rule you are about to read. A fire in the cabin can be seen and put out by the crew within seconds. A fire in the cargo hold cannot. That single distinction explains why your power bank must travel with you and not under the plane.
How many mAh is allowed in a flight in India?
Here is the detail most travellers miss: aviation rules are written in watt-hours (Wh), not mAh. Airlines and the DGCA care about total energy, and mAh on its own does not tell you that — you also need the voltage.
The conversion is straightforward. Most power bank cells run at a nominal 3.7 volts:
Wh = (mAh ÷ 1000) × 3.7
So a 10,000mAh power bank is (10 ÷ 1) × 3.7 = 37Wh. Comfortably inside every limit.
Power bank size vs. flight rules
| Capacity (mAh) | Watt-hours | Cabin bag | Approval needed? |
|---|---|---|---|
| 5,000mAh | 18.5Wh | Allowed | No |
| 10,000mAh | 37Wh | Allowed | No |
| 20,000mAh | 74Wh | Allowed | No |
| 27,000mAh | ~100Wh | Allowed (at the limit) | No |
| 30,000mAh | 111Wh | Conditional | Yes — max 2 units |
| 45,000mAh+ | 166Wh+ | Not allowed | Banned |
The practical takeaway: if your power bank is 20,000mAh or smaller, you will never have a conversation about it at security. The trouble starts at 30,000mAh and above, which is where "high-capacity" laptop power banks sit.
Can a power bank go in checked baggage?
No. Never. This is the one rule with no exceptions and no airline variation. Spare lithium batteries — power banks, camera batteries, loose laptop batteries — are prohibited in the cargo hold on every commercial flight worldwide.
If security finds one during checked-bag screening, the bag gets pulled, you get paged, and in the best case you lose the power bank. In the worst case you miss the flight. Pack it in your cabin bag every time.
Can you use a power bank during the flight?
This is where the rules changed recently, and where a lot of outdated advice online will get you a firm word from the cabin crew.
Following a series of in-flight battery incidents, airlines across Asia — including major Indian carriers — tightened their policies through 2025 and 2026. The current direction of travel is:
- Do not use or charge a power bank in flight. Charging generates the most heat, and that is when failures happen.
- Do not stow it in the overhead bin. Keep it in the seat pocket or your under-seat bag, where crew can reach it fast.
- Keep it visible and accessible, not buried inside a packed cabin bag.
Policies differ by airline and continue to evolve, so check your carrier's dangerous goods page before you fly. The safe habit: charge your phone fully in the lounge, then stow the power bank for the flight.
How many power banks can you carry?
For units under 100Wh, there is no hard numerical cap in the regulations — but there is a "reasonable personal use" test. Two or three power banks for a family is normal. Fifteen identical units in retail packaging looks like commercial cargo, and will be treated as such.
Each battery should also be protected against short circuits: keep it in its own pouch or the original box, with the terminals covered and nothing metal (keys, coins) loose in the same pocket.
What should you look for in a travel power bank?
Given the rules above, the ideal flying power bank is not the biggest one you can find. It is the smallest one that still gets you through the day.
- Capacity printed on the casing. If the mAh or Wh rating is not visible on the unit, security can refuse it. Unmarked batteries are the single most common reason a power bank gets confiscated.
- 5,000–10,000mAh for a phone-only trip. That is one to two full phone charges — enough for a travel day — with zero paperwork.
- USB-C input and output. One cable for the power bank, the phone and most modern earbuds.
- Magnetic wireless charging if you have a compatible phone. It snaps on and charges while you walk, with no cable dangling out of your pocket in a crowded terminal.
- Built-in protection circuitry — over-current, over-temperature and short-circuit cut-offs. This is the part you cannot see and should not skip.
The NEWDRU MagCharge Duo was built around exactly this brief: 5,000mAh (18.5Wh), magnetic wireless attachment, 18W fast wired output and USB-C input, with full safety protection. At well under a fifth of the 100Wh limit, it is the kind of power bank you simply drop in your bag and forget about.
If you want the longer technical breakdown of how magnetic charging works and what efficiency to expect, read our magnetic wireless power bank buying guide. Planning a trip by road instead? Our car travel accessories guide covers the gear that actually earns its space.
Key takeaways
- Power banks are cabin bag only — never in checked luggage, on any airline.
- Under 100Wh (~20,000mAh): allowed, no approval needed.
- 100–160Wh: airline approval required, usually two units maximum.
- Over 160Wh: not permitted on passenger aircraft.
- Indian airlines increasingly ask you not to use or charge a power bank in flight — stow it in the seat pocket.
- Make sure the capacity is printed on the casing, or security may refuse it.
Buy it or rent it — your call
Buy the MagCharge Duo
5,000mAh magnetic wireless power bank, 18W output, flight-friendly at 18.5Wh. Yours to keep.
Rent a power bank instead
Travelling once this year? Rent the PowerSnap power bank from ₹55/day (2-day minimum). Refundable deposit, free delivery on rentals over ₹2,000, free pickup.
Frequently asked questions
Can I carry a 20000mAh power bank in a flight in India?
Yes. A 20,000mAh power bank is about 74Wh, well under the 100Wh threshold, so it is allowed in your cabin bag with no airline approval needed. Keep it in hand baggage only.
Can I carry two power banks in a flight?
Yes. Multiple power banks under 100Wh are allowed as long as the quantity is consistent with personal use. Each one should be individually protected against short circuits — in its own pouch or the original packaging.
Will security confiscate my power bank?
Only if it exceeds the limits, has no visible capacity rating, is visibly damaged or swollen, or is found in checked baggage. A clearly marked power bank under 100Wh in your cabin bag passes without issue.
Do the rules differ for international flights from India?
The core limits — 100Wh free, 100–160Wh with approval, above 160Wh banned, cabin bag only — follow international IATA guidance and apply on essentially every commercial airline worldwide. Individual carriers can add stricter conditions on top, such as no in-flight use.
Can I charge my phone from a power bank at the airport?
Yes. All of the in-flight restrictions apply once you are on the aircraft. Inside the terminal you can use a power bank freely — and the lounge is the best place to top everything up before you stow it for the flight.