Power Bank in Flight Rules India: mAh Limits, Cabin Only and No In-Flight Use

Short answer: yes, you can carry a power bank on an Indian flight, but only in your cabin bag, never in check-in luggage. A power bank up to 100 Wh (about 27,000 mAh) is allowed without permission. 100–160 Wh needs the airline's approval, and above 160 Wh is not allowed at all. Since the DGCA advisory of November 2025, you also cannot use the power bank during the flight: no charging your phone from it, and no charging it from the seat USB port. Most people carry 10,000 or 20,000 mAh power banks, and both are well within the limit.

Below is the full rule set, how to convert the mAh on your power bank into Wh, and what to check before you leave for the airport.

The rules in one table

Power bank rating	Approx. mAh (at 3.7 V)	Cabin bag	Check-in bag
Up to 100 Wh	Up to ~27,000 mAh	Allowed	Not allowed
100–160 Wh	~27,000–43,000 mAh	Only with airline approval	Not allowed
Above 160 Wh	Above ~43,000 mAh	Not allowed	Not allowed

Other limits:

• Number: usually no more than 2 spare power banks per passenger.
• No use on board: no charging from or to the power bank during the flight.
• Where to keep it: in the seat pocket or the bag under the seat in front of you, so the crew can reach it fast if it overheats. Do not put it in the overhead bin.
• Airline rules can be stricter. Some airlines refuse 100–160 Wh power banks completely. Check your airline's dangerous-goods page before you fly.

Why power banks are cabin-only

A power bank is a pack of lithium-ion cells. If a cell is damaged, badly made or short-circuited, it can overheat quickly and catch fire (this is called thermal runaway). In the cabin, crew can see the smoke and put the fire out with an extinguisher and containment bag. In the cargo hold, nobody can see or reach it. That is why security (BCAS) screening removes power banks from check-in bags. If one is found in your check-in bag, expect to be called back to open the bag, or to have the power bank taken out.

The in-flight use ban came after several power bank fires on planes around the world. Charging puts the most stress on a battery, so regulators chose to stop charging on board completely instead of trying to judge each device.

How to read your power bank: mAh vs Wh

Indian power banks print mAh in large type, but airline rules use Wh (watt-hours). The conversion is simple:

Wh = mAh × voltage ÷ 1,000

Lithium-ion cells are rated at 3.7 V, so use 3.7 unless the label prints a Wh figure, which takes priority.

Capacity on the box	Wh at 3.7 V	Allowed in cabin?
5,000 mAh	18.5 Wh	Yes
10,000 mAh	37 Wh	Yes
20,000 mAh	74 Wh	Yes
27,000 mAh	~100 Wh	Yes, right at the limit
30,000 mAh	111 Wh	Only with airline approval
50,000 mAh	185 Wh	No

Two common mistakes:

1. Using the output voltage. A fast-charging power bank may deliver 9 V or 12 V over USB-C PD, but the Wh rating is based on the cell voltage (3.7 V). Do not multiply by 9 or 12.
2. Confusing watts with watt-hours. "22.5W", "35W" or "65W" on the box is the charging speed, not the capacity. A 20,000 mAh 65W power bank is still about 74 Wh and is allowed in the cabin.

If the label shows no capacity at all, or the print has worn off, security can refuse the power bank because they cannot tell whether it is within the limit. Unbranded power banks with no markings are the ones most often taken away.

What exactly is banned on board

Under the current Indian rules:

• No charging your phone, earbuds or tablet from a power bank during the flight.
• No charging the power bank from the seat's USB or power outlet.
• Carrying it is fine. Using it is not, until you land.

If you need your phone charged for a long flight, charge it fully before boarding. On aircraft that have seat USB ports, airlines generally allow charging your phone directly from the port. Check what the crew announces.

Pre-airport checklist

1. Find the label. Make sure capacity (mAh and/or Wh) is printed and readable.
2. Do the maths. Up to ~27,000 mAh is fine. Anything bigger needs the airline's approval, or it should stay at home.
3. Pack it in the cabin bag, never in the suitcase you check in. This applies to power banks inside "smart" luggage too. Remove the battery before check-in.
4. Count them. Two spares at most.
5. Protect the ports. Keep it in a pouch or separate pocket so keys and coins cannot short-circuit it.
6. Leave a damaged one at home. If it is swollen, dented, unusually hot when charging or has a cracked case, do not fly with it. Recycle it.
7. Flying international? Many foreign airlines now also ban in-flight use, and some have their own limits on the number of power banks. Check the rules for every airline on your route.

Which power bank size is best for travel

For flights, a power bank between 10,000 and 20,000 mAh is the most practical choice:

• 10,000 mAh (37 Wh): small and light. It gives most phones roughly one to two full charges and fits a jeans pocket. Good for short trips.
• 20,000 mAh (74 Wh): two or more phone charges, or a partial laptop top-up if it supports USB-C PD at 45W or more. It is still comfortably under 100 Wh. Here is why a 20,000 mAh power bank charges a phone only about twice instead of four times.
• Above 27,000 mAh: avoid it for air travel. You may need airline approval, and many airlines now refuse.

Buy from a known brand with the capacity printed clearly. Check for BIS certification (the R-number on the label), which is required for power banks sold in India.

Travel-friendly power bank deals live on RichDeals

These price-verified deals are live on our site now. All of them are 20,000 mAh or below, so all are cabin-legal. Prices change often, so open each deal page for the current price.

• Lapcare Pacer 10000mAh 22.5W fast-charging power bank: ₹589 (M.R.P. ₹2,199)
• Portronics Aero 10 10000mAh 20W mini power bank: ₹899 (M.R.P. ₹2,499)
• EVM EnTurbo 20000mAh 22.5W power bank: ₹1,099 (M.R.P. ₹2,999)
• Zebronics 20000mAh 35W slim power bank: ₹1,199 (M.R.P. ₹4,499)
• URBN 20000mAh 70W nano power bank: ₹1,899 (M.R.P. ₹5,999)

See all current gadget discounts on our offers page. Packing for a trip? Read our cabin trolley bag size vs airline weight limit guide, and the travel adapter guide for Indians going abroad.