Stay under 100Wh
Roughly 27,000mAh. Above that, most airlines refuse it or require written approval. Always pack it in hand luggage.
Buying guide
Best power bank for travel from the UK
A travel power bank has to clear airline rules, fit a carry-on and still push enough watts to charge a laptop. Here is how to choose, plus the models we track for UK and European trips.
The three rules that matter
Match watts to your laptop
65W covers ultrabooks, 100W covers most 16-inch machines. Capacity in mAh says nothing about charging speed.
Bring a 5A cable
Anything over 60W needs an e-marked USB-C cable, or the power bank silently throttles to a slower rate.
Laptop-capable power banks (60W and above)
AnkerLuxury
Anker Prime 27,650mAh (250W)
250W · 3 ports · ~₹13,500–₹16,200
AnkerLuxury
Anker Laptop Power Bank 25,000mAh 165W Built-in Cables
165W · 4 ports · ~₹8,100–₹10,800
AnkerLuxury
Anker 737 Power Bank (PowerCore 24K)
140W · 3 ports · ~₹9,900–₹12,600
UgreenPremium
Ugreen Nexode 20,000mAh 130W
130W · 3 ports · ~₹6,300–₹8,100
BaseusPremium
Baseus Blade 100W Laptop Power Bank
100W · 4 ports · ~₹5,400–₹7,200
ShargeLuxury
Shargeek 100 Storm2 Power Bank
100W · 4 ports · ~₹16,200–₹19,800
AnkerLuxury
Anker Laptop Power Bank 25,000mAh 100W
100W · 3 ports · ~₹7,200–₹9,900
INIUBudget
INIU 25,000mAh 100W Power Bank
100W · 3 ports · ~₹4,500–₹6,300
BaseusPremium
Baseus 20,000mAh 100W Laptop Power Bank
100W · 2 ports · ~₹4,950–₹6,750
Pocket and phone-first power banks
BaseusBudget
Baseus Magnetic Power Bank 30W 10K
30W · 2 ports · ~₹2,700–₹3,600
BaseusBudget
Baseus Let's Go Cord Power Bank (20K 30W)
30W · 3 ports · ~₹3,150–₹4,300
AnkerBudget
Anker Zolo Power Bank 20,000mAh 30W Built-in Cable
30W · 3 ports · ~₹2,250–₹3,150
BaseusBudget
Baseus EnerGeek 10,000mAh Power Bank with Retractable Cable
30W · 3 ports · ~₹2,250–₹3,150
AnkerBudget
Anker Nano Power Bank with Built-in USB-C
22.5W · 1 ports · ~₹2,250–₹3,150
INIUBudget
INIU 10,000mAh Slim Power Bank
22.5W · 3 ports · ~₹1,350–₹2,000
AnkerBudget
Anker Portable Charger 10,000mAh 22.5W (PowerCore)
22W · 2 ports · ~₹1,600–₹2,250
INIUBudget
INIU Portable Charger 10,000mAh 22.5W Slim Power Bank
22W · 3 ports · ~₹1,350–₹2,000
XiaomiBudget
Xiaomi Mi Power Bank 10,000mAh 22.5W Fast Charging
22W · 3 ports · ~₹1,350–₹1,800
AmbraneBudget
Ambrane 20,000mAh 22.5W Fast Charging Power Bank
22W · 3 ports · ~₹1,600–₹2,250
URBNBudget
URBN 10,000mAh 22.5W Compact Power Bank
22W · 2 ports · ~₹1,100–₹1,600
BaseusBudget
Baseus 10,000mAh 22.5W Power Bank with Digital Display
22W · 3 ports · ~₹1,450–₹2,150
ShargePremium
Sharge Capsule Gravity Power Bank
20W · 2 ports · ~₹3,600–₹4,500
ShargePremium
Sharge Flow Portable Power Bank (10K)
20W · 2 ports · ~₹3,600–₹4,500
BaseusBudget
Baseus Magnetic Magsafe Power Bank 5,000mAh Slim
20W · 1 ports · ~₹1,800–₹2,700
AnkerPremium
Anker MagGo Power Bank 10K (Qi2)
15W · 2 ports · ~₹5,400–₹7,650
AnkerPremium
Anker MagGo Magsafe Power Bank 10,000mAh Qi2 15W
15W · 2 ports · ~₹4,950–₹6,300
AnkerBudget
Anker Nano Power Bank with Built-in Lightning
12W · 1 ports · ~₹1,800–₹2,700
AnkerBudget
Anker PowerCore Slim 10,000mAh Portable Charger
12W · 2 ports · ~₹1,600–₹2,350
AnkerBudget
Anker 521 Magnetic Battery (PowerCore 5K)
7.5W · 1 ports · ~₹3,150–₹4,050
Travel power bank questions
What size power bank can I take on a plane?
Airlines follow the IATA rule of 100Wh per battery in hand luggage, which is roughly 27,000mAh at 3.7V. Power banks must travel in the cabin, never in checked baggage. Some carriers allow up to 160Wh with prior approval, so check before flying with anything larger.
What wattage do I need to charge a laptop?
A 13-inch ultrabook charges comfortably from 45–65W, a 14-inch MacBook Pro wants 65–96W, and a 16-inch or gaming laptop needs 100W or more. Look at the USB-C Power Delivery output of the power bank, not just its capacity in mAh.
Do I need a special cable for fast charging?
Yes above 60W. Charging at 100W or 140W requires a 5A e-marked USB-C cable. Most bundled cables are rated 60W, which quietly caps your charging speed even when the power bank can do more.
Is a slim power bank better for travel?
For carry-on travel, yes. Flat, slim-profile power banks slide into laptop sleeves and seat pockets, spread weight better in a backpack, and still deliver high wattage thanks to modern GaN circuitry.
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