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Laptop power banks
price per 100 Wh How we compare Buying guide ↓
- Output that matters
- 65–140 W on one port
- Cable above 60 W
- 5 A e-marked; EPR at 140 W
- Carry-on without approval
- Up to 100 Wh · 27,000 mAh
- Charges, 74–100 Wh bank
- One 13-inch, half a 16-inch
Filters (1)
| Product | ₹ / 100 Wh ▲ | Max output (W) | Package | Capacity | Kind | Rating · Reviews |
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| Product | ₹ / 100 Wh ▲ | Max output (W) | Package | Capacity | Kind | Rating · Reviews | |
|---|---|---|---|---|---|---|---|
| ZEBRONICS 27000 mAh Power Bank | 65W PD3.0 | Fast Charging | Dual Type C & USB A | For iPhone, Android, Laptop,Tab, Earbuds | Flight Friendly | Metal Body | Circuit Protection | EnergiPOD 27R2 (Black) 27,000 mAh · 99.9 Wh · 3.3 / 5 Max output (W): 65 Capacity, output & details
| ₹1,900.90per 100 WhBest value | 65 | ₹1,899.00Package price | 27,000 mAh · 99.9 Wh | Laptop (65 W+) | 3.3 (202) | |
| Amazon Basics 27000 mAh Power Bank, 65W Fast Charging, Outputs (2 Type C & 1 USB) PD3.0, for iPhone, Android, Laptop, Tablets, Earbuds, Flight Friendly, Metallic Body (Black) 27,000 mAh · 99.9 Wh · 2.7 / 5 Max output (W): 65 Capacity, output & details
| ₹2,225.23per 100 Wh | 65 | ₹2,223.00Package price | 27,000 mAh · 99.9 Wh | Laptop (65 W+) | 2.7 (11) | |
| Portronics 65W Ignis 65 20000mAh Fast Charging Powerbank with in-Built Type C Cable for Android Smartphones, iPhones, ipads, Tablets & Macbooks, Type C PD Port, LED Display, Strong Lanyard (Black) 20,000 mAh · 74 Wh · 4 / 5 Max output (W): 65 Capacity, output & details
| ₹2,701.35per 100 Wh | 65 | ₹1,999.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4 (633) | |
| boAt EnergyShroom PB665 Turbo X, 30000mAh Laptop Powerbank w/ 65W Turbo Fast Charging, 100W high-Speed Cable. Compact, for MacBooks, laptops, iPhones, Android, Smartphones, Tablets (Navy Blue) 30,000 mAh · 111 Wh · 4.1 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹3,152.25per 100 Wh | 100Most powerful | ₹3,499.00Package price | 30,000 mAh · 111 Wh | Laptop (65 W+) | 4.1 (296) | |
| boAt EnergyShroom PB665 Turbo X, 30000mAh Laptop Powerbank w/ 65W Turbo Fast Charging, 100W high-Speed Cable. Compact, for MacBooks, laptops, iPhones, Android, Smartphones, Tablets (Onyx Black) 30,000 mAh · 111 Wh · 4.1 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹3,152.25per 100 Wh | 100Most powerful | ₹3,499.00Package price | 30,000 mAh · 111 Wh | Laptop (65 W+) | 4.1 (296) | |
| Ambrane Semi Solid Battery Powerbank 40000mAh, New Battery Technology - Extremely Safe with Negligible Fire Risk, 65W Fast Charging - Macbook, Type C Laptop, Mobiles, Other Devices (Stellar 40K, Blue) 40,000 mAh · 148 Wh · 4.4 / 5 Max output (W): 65 Capacity, output & details
| ₹3,377.70per 100 Wh | 65 | ₹4,999.00Package price | 40,000 mAh · 148 Wh | Laptop (65 W+) | 4.4 (36) | |
| Ambrane Semi Solid Battery Powerbank 40000mAh, New Battery Technology - Extremely Safe with Negligible Fire Risk, 65W Fast Charging - Macbook, Type C Laptop, Mobiles, Other Devices (Stellar 40K,Green) 40,000 mAh · 148 Wh · 4.2 / 5 Max output (W): 65 Capacity, output & details
| ₹3,377.70per 100 Wh | 65 | ₹4,999.00Package price | 40,000 mAh · 148 Wh | Laptop (65 W+) | 4.2 (58) | |
| Stuffcool Major Ultra 65W PD Super Fast USB Charging 20000Mah Laptop Powerbank Supports Super Fast Charging 2.0, Charges Macbooks, Laptops, Dslrs and Gaming Console, Silver 20,000 mAh · 74 Wh · 3.8 / 5 Max output (W): 65 Capacity, output & details
| ₹3,444.59per 100 Wh | 65 | ₹2,549.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 3.8 (731) | |
| Amazon Basics 20000mAh 100W Fast Charging Power Bank | 2 USB-C PD 3.0 + 1 USB-A QC 3.0 | Laptop, Tablet & Phone Charging | Digital Display | Black 20,000 mAh · 74 Wh · 2.3 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹3,485.14per 100 Wh | 100Most powerful | ₹2,579.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 2.3 (47) | |
| ZEBRONICS EnergiPOD 27R3 Power Bank, 27000 mAh, 100W, PD 3.0 Type C, Rapid Charging, Outputs - Dual Type C | USB A, LED Display, Auto Protections, Flight Friendly, Made in India (Black+Grey) 27,000 mAh · 99.9 Wh · 3.7 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹3,502.50per 100 Wh | 100Most powerful | ₹3,499.00Package price | 27,000 mAh · 99.9 Wh | Laptop (65 W+) | 3.7 (1.4K) | |
| Toreto Power Storm 20000mAh 65W Laptop Power Bank with Built-in Cable 20,000 mAh · 74 Wh · 4 / 5 Max output (W): 65 Capacity, output & details
| ₹3,670.27per 100 Wh | 65 | ₹2,716.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4 (33) | |
| URBN 27000 mAh 100W Super Fast Charging Compact Power Bank with Quick Charge & Power Delivery, Type C Input/Output, Made in India, Type C Cable Included (Blue) 27,000 mAh · 99.9 Wh · 3.7 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹3,702.70per 100 Wh | 100Most powerful | ₹3,699.00Package price | 27,000 mAh · 99.9 Wh | Laptop (65 W+) | 3.7 (127) | |
| Amazon Basics 100W Fast Charging Power Bank for Type C Laptop & Mobile Charging, USB-A Output 27000mAh Battery, Fast Charging, Triple Output, Power Delivery & Quick Charge, Black 27,000 mAh · 99.9 Wh · 3.9 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹3,702.70per 100 Wh | 100Most powerful | ₹3,699.00Package price | 27,000 mAh · 99.9 Wh | Laptop (65 W+) | 3.9 (139) | |
| Noise 65W Compact Power Bank 20000mAh Fast Charging PD 3.0 with PPS: Built-in Type-C Cable, Digital Battery%, Advanced Safety, Triple Output | for MacBook, Laptop, iPhone, Android, Tablet (Silver) 20,000 mAh · 74 Wh Max output (W): 65 Capacity, output & details
| ₹4,052.70per 100 Wh | 65 | ₹2,999.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | — | |
| Noise 65W Compact Power Bank 20000mAh Fast Charging PD 3.0 with PPS: Built-in Type-C Cable, Digital Battery%, Advanced Safety, Triple Output | for MacBook, Laptop, iPhone, Android, Tablet (Blue) 20,000 mAh · 74 Wh Max output (W): 65 Capacity, output & details
| ₹4,052.70per 100 Wh | 65 | ₹2,999.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | — | |
| Xiaomi Power Bank 5i 20000mAh 67W Turbo Charging PD 3.0 & PPS|in-Built Cable|12 Layer Protection|Digital Display|Triple Output Ports|Supports Laptop, Tablet, Phone, Earbud (Jet Black)- 2026 New Launch 20,000 mAh · 74 Wh · 4.3 / 5 Max output (W): 67 Capacity, output & details
| ₹4,322.97per 100 Wh | 67 | ₹3,199.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4.3 (547) | |
| Xiaomi Power Bank 5i 20000mAh 67W Turbo Charging PD 3.0 & PPS|in-Built Cable|12 Layer Protection|Digital Display|Triple Output Ports|Supports Laptop, Tablet, Phone, Earbud (Ice Blue)- 2026 New Launch 20,000 mAh · 74 Wh · 4.3 / 5 Max output (W): 67 Capacity, output & details
| ₹4,322.97per 100 Wh | 67 | ₹3,199.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4.3 (547) | |
| AGARO Sonic Power Bank 20000 mAh 65W 4-in-1 Power Bank (Type-C & Lightning Cable, USB-A & Type-C Port),65W PD & 60W QC Output, Fast Charging for Laptop, Mobile, Tablet, iPad, smartwatch, earpods. 20,000 mAh · 74 Wh · 3.8 / 5 Max output (W): 65 Capacity, output & details
| ₹4,324.32per 100 Wh | 65 | ₹3,200.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 3.8 (40) | |
| URBN 20000 mAh 70W Ultra Volt Power Bank | Dual Output | PD + QC Compatible | LED Display | Two-Way Fast Charge | Pass-Through Charging | for MacBook Air, iPhone, Samsung, Android & More (Grey) 20,000 mAh · 74 Wh · 4 / 5 Max output (W): 70 Capacity, output & details
| ₹4,458.11per 100 Wh | 70 | ₹3,299.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4 (122) | |
| Ambrane 100W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, USB-A Output 25,000mAh Battery, Triple Output, Power Delivery & Quick Charge (Powerlit Ultra, Black) 25,000 mAh · 92.5 Wh · 3.6 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹4,669.19per 100 Wh | 100Most powerful | ₹4,319.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | 3.6 (1.3K) | |
| Energizer 20000mAh 65W Ultra Fast Charging Power Bank with Built-in USB-C Cable, Two-Way Fast Charge, 1-Year Warranty, Digital Display, PD Portable Charger for iPhone, Samsung & More | Grey 20,000 mAh · 74 Wh · 4.2 / 5 Max output (W): 65 Capacity, output & details
| ₹4,728.38per 100 Wh | 65 | ₹3,499.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4.2 (73) | |
| Ambrane 100W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, 25,000mAh Battery with 3in1 Cable 25,000 mAh · 92.5 Wh Max output (W): 100Most powerful Capacity, output & details
| ₹4,970.81per 100 Wh | 100Most powerful | ₹4,598.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | — | |
| Lifelong 100W 27000 mAh 4-in-1 Fast Charging Laptop Power Bank with 2 Type C PD Output Ports & 2 USB Output Ports Compatible with Laptop, Android Smartphones, iPhones, iPad, Tablet (Metallic Blue) 27,000 mAh · 99.9 Wh · 2.9 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,195.20per 100 Wh | 100Most powerful | ₹5,190.00Package price | 27,000 mAh · 99.9 Wh | Laptop (65 W+) | 2.9 (19) | |
| Tempt Maestro 20000mAh 67W GaN3 Power Bank for Laptop & Mobile (Blue) 20,000 mAh · 74 Wh · 3.4 / 5 Max output (W): 67 Capacity, output & details
| ₹5,268.92per 100 Wh | 67 | ₹3,899.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 3.4 (4) | |
| Stuffcool GIGA II Smallest 65W 20000mAh Laptop Powerbank with Built in 100W 5A Type C Cable,Charges MacBook air 0-100%,MacBook pro laptops 0-90%,Supports SFC 2.0,fastcharges iPhone,Pixels 20,000 mAh · 74 Wh · 4 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,404.05per 100 Wh | 100Most powerful | ₹3,999.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4 (700) | |
| AGARO Impulse Power Bank 20000 mAh 100W 3-in-1 Power Bank with 100W PD & 33W QC Output, Fast Charge up to 3 Devices simultaneously, Compatible with Laptop, Mobile, Tablet, iPad, Smartwatch, Earbuds 20,000 mAh · 74 Wh · 3.8 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,404.05per 100 Wh | 100Most powerful | ₹3,999.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 3.8 (8) | |
| Stuffcool Giga Max Smallest 25000mAh 100W Power Bank, Built-in Type-C Cable, Charges MacBook Pros, laptops, supports Samsung Super Fast Charging 2.0; Smart TFT Display, Made in India, CE ROHS Approved 25,000 mAh · 92.5 Wh · 4 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,404.32per 100 Wh | 100Most powerful | ₹4,999.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | 4 (700) | |
| URBN MegaStack 25000mAh 100W Power Bank | Fast Charging Laptop Charger 25,000 mAh · 92.5 Wh · 4.8 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,404.32per 100 Wh | 100Most powerful | ₹4,999.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | 4.8 (7) | |
| URBN MegaStack 25000mAh 100W Power Bank | Fast Charging Laptop Charger 25,000 mAh · 92.5 Wh · 4.8 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,404.32per 100 Wh | 100Most powerful | ₹4,999.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | 4.8 (7) | |
| Ambrane 100W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, 25,000mAh Battery with 30w Gan Charger 25,000 mAh · 92.5 Wh · 4 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹5,424.86per 100 Wh | 100Most powerful | ₹5,018.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | 4 (1) | |
| GRAVL Axis 67 Laptop Power Bank 20000mAh 67W Fast Charging 4-Year Warranty | For Laptop iPhone Android, Flight Safe, Multi-Device Charging, Built-in Type-C Cable, Smart Display 20,000 mAh · 74 Wh · 3.9 / 5 Max output (W): 67 Capacity, output & details
| ₹5,490.54per 100 Wh | 67 | ₹4,063.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 3.9 (11) | |
| Ambrane 85W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, 20,000mAh Battery,with 3in1 Cable 20,000 mAh · 74 Wh Max output (W): 85 Capacity, output & details
| ₹5,848.65per 100 Wh | 85 | ₹4,328.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | — | |
| Ambrane 85W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, 20,000mAh Battery,with 30w Gan Charger 20,000 mAh · 74 Wh Max output (W): 85 Capacity, output & details
| ₹6,416.22per 100 Wh | 85 | ₹4,748.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | — | |
| CALLMATE Vanguard 100W Fast Charging 20000mAh Power Bank for MacBook, Type C Laptop & Mobile Charging (2X USB-C PD3.0, 1x USB-A QC) Power Delivery & Quick Charge (Black, Lithium Ion) 20,000 mAh · 74 Wh · 3.2 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹7,441.57per 100 Wh | 100Most powerful | ₹5,506.76Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 3.2 (29) | |
| Ambrane 100W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, 25,000mAh Battery with 100w Gan Charger 25,000 mAh · 92.5 Wh · 5 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹8,451.89per 100 Wh | 100Most powerful | ₹7,818.00Package price | 25,000 mAh · 92.5 Wh | Laptop (65 W+) | 5 (1) | |
| Belkin Power Bank 65W 20000 mAh | Mobile & Laptop Power Bank | 2 USB-C PD Port | Compatible for Lenovo,HP,Dell,Microsoft,MacBook,iPhone 17,iPad,Samsung Galaxy S25,Google Pixel 10 | 2 Years Warranty 20,000 mAh · 74 Wh · 4.1 / 5 Max output (W): 65 Capacity, output & details
| ₹10,133.78per 100 Wh | 65 | ₹7,499.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 4.1 (331) | |
| Ambrane 85W Fast Charging Powerbank for MacBook, Type C Laptop & Mobile Charging, 20,000mAh Battery, with 100w Gan Charger 20,000 mAh · 74 Wh · 1 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹10,200.00per 100 Wh | 100Most powerful | ₹7,548.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 1 (1) | |
| iGear Hardy PD100W Power Bank, 20000mAh, Fast & Safe Charging, for Laptop, Mobile & Camera, Travel-Ready Design, Compatible with laptops, MacBooks, Smartphones. 20,000 mAh · 74 Wh · 5 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹10,809.46per 100 Wh | 100Most powerful | ₹7,999.00Package price | 20,000 mAh · 74 Wh | Laptop (65 W+) | 5 (1) | |
| Bequest Power Bank with 100W AC Outlet, 31200mAh Portable Laptop Power Bank, 12W USB Output & 15W Type-C Output Ultra-High Capacity, Battery Backup Power Supply, Compatible with Phone, Drone, Camera 31,200 mAh · 115.4 Wh · 4.7 / 5 Max output (W): 100Most powerful Capacity, output & details
| ₹12,906.27per 100 Wh | 100Most powerful | ₹14,899.00Package price | 31,200 mAh · 115.4 Wh | Laptop (65 W+) | 4.7 (4) |
₹5,004.00 per 100 Wh median of 54 in-stock listings.
Per 100 Wh of nominal cell energy: mAh × 3.7 V, or the stated Wh where it agrees within 20 %; power stations by their stated Wh. ~ marks a stated Wh set aside, or a title that names several capacities.
Laptop power banks: what to know before you buy
A 20,000–27,000 mAh bank with at least one USB-C port that negotiates USB Power Delivery at 65 W or more; 100 W and 140 W are the common ceilings, and 250–300 W models exist. Buyers get three things wrong: a 74–100 Wh bank is about one charge of a 13-inch laptop and half a charge of a 16-inch one; the laptop’s port, the cable and the bank each cap the speed, so “140 W” on the box rarely reaches the laptop; and the bank’s own input speed decides whether it refills over lunch or overnight.
Specs and terms that matter
Output per port and combined
65, 100 or 140 W on the main USB-C port is the figure that matters; a combined figure such as “165 W” is often 100 W on one port plus 65 W on another, never 165 W to one laptop. Most banks drop the laptop port to a lower profile when a phone is plugged in too.
PD 3.0 vs PD 3.1 EPR
USB PD 3.0 tops out at 100 W (20 V, 5 A). PD 3.1 Extended Power Range adds 28, 36 and 48 V for up to 240 W; 140 W needs the 28 V EPR profile on bank, cable and laptop alike. PPS and AVS are the adjustable-voltage modes for phones and newer laptops.
Cable rating
Any USB-C cable carries 3 A, 60 W at 20 V. Above 60 W the cable must be 5 A e-marked (sold as “100 W”); 140–240 W needs an EPR-marked 5 A cable. A 100 W bank with a thin cable charges a laptop at 60 W, and users with a USB tester often find half their cables are the slow kind.
Input watts (recharge)
65 W input refills a 100 Wh bank in about 2 h, 100–140 W in about 1 h; some banks take two chargers at once. The input rating needs a wall charger and cable that can supply it. A crowd-sourced test of ten laptop banks found a 20-minute lunch recharge returns about 45 Wh at best, because most throttle after 20 minutes at 140 W.
Energy
20,000 mAh is 74 Wh, 24,000–26,000 mAh 86–96 Wh, 27,000 mAh about 100 Wh. Above 100 Wh airline approval is needed, which is why laptop banks cluster at 24,000–27,000 mAh.
Sustained vs peak output
Some banks hold the top figure for five minutes, then throttle on heat; reviews that log the curve show it. Voltage ripple and noise under load separate good electronics from poor ones.
Weight
500–700 g is normal for 25,000 mAh at 140–165 W; the lightest 20,000 mAh banks are about 325 g but at lower watts. A 300 W 27,000 mAh bank is 600–700 g.
Display and ports
A live watts-in and watts-out display is standard here; it shows whether the laptop negotiated 65 or 100 W. Two USB-C and one USB-A is the norm, a third USB-C on 25,000 mAh and up; Bluetooth telemetry on premium models.
Before you buy
- Find the laptop’s draw: a MacBook Air or 13-inch ultrabook 30–65 W, a 14-inch MacBook Pro 70–96 W, a 16-inch MacBook Pro 140 W over its MagSafe 3 cable; most gaming laptops charge from USB-C slowly or not at all.
- Decide between 65 and 100 W: in forum consensus 65 W keeps a MacBook Pro working under normal load and 100 W keeps it charging under load.
- Check the cable in the box: 5 A e-marked for anything above 60 W, EPR-marked for 140 W; buy one if the box does not say.
- Read the input watts and whether the wall charger at home can supply them; 140 W input needs a 140 W charger and an EPR cable.
- Keep the Wh under 100 if the bank will fly: 24,000–27,000 mAh is the usual ceiling, and 30,000 mAh laptop banks need airline approval.
- Weigh it against the charger: a bank that weighs more than the laptop’s charger loses to a charger plus a 10,000 mAh bank in most travel threads.
- Check whether the laptop port holds its output when a phone is plugged in; the per-port figures under load are in the fine print.
- Check the model number against the maker’s recall page and read the warranty term, 12–24 months on this class.
Myths and mistakes
- A 140 W bank does not charge a 16-inch MacBook Pro at 140 W over USB-C: that speed uses the MagSafe 3 cable, USB-C stays at the 100 W PD 3.0 ceiling, and the Mac’s own curve falls below 100 W after about 22 minutes anyway.
- A 100 Wh bank does not fully recharge every laptop: about 85 Wh arrives, roughly 1.2 charges of a MacBook Air and 0.8 of a 16-inch Pro.
- A charger that is also a power bank at 140 W and 20,000 mAh does not exist; the hybrids are 65 W and 10,000 mAh, and bulky in a wall socket.
- “165 W” in a title is a combined figure: 100 W on one port and 65 W on another, never 165 W to a laptop.
- Gaming laptops are not laptop-bank territory: most need 180–240 W from a barrel charger, and a 100 W USB-C bank only slows the drain.
- A 3C mark, not a UL mark, is what China’s Civil Aviation Administration has required on domestic flights since 28 June 2025; travellers transiting China report banks without it being confiscated.
Questions people ask
How many watts does my laptop need from a power bank?
30–65 W for thin laptops and a MacBook Air, 96–100 W for 14- and 16-inch pro models, 140 W only for the 16-inch MacBook Pro over its MagSafe 3 cable. A laptop draws what it needs; a 100 W bank on a 45 W laptop runs at 45 W.
Will a 65 W power bank charge a 100 W laptop?
Yes, more slowly; under heavy load the battery may still drain, but the runtime is extended. In forum consensus 65 W keeps a MacBook Pro working under normal load, and 100 W keeps it charging while working.
Which cable do I need for a 100 W or 140 W power bank?
A 5 A e-marked cable (sold as “100 W”) for 65–100 W; a 240 W EPR-marked cable for 140 W. A plain USB-C cable carries 60 W, whatever the bank says.
How much laptop runtime does a 20,000 mAh bank give?
Roughly one full charge of a 13-inch laptop (50–70 Wh battery) and half a charge of a 16-inch one (100 Wh), after 10–15 % losses. A 27,000 mAh bank at about 100 Wh gives about 1.2 charges of a MacBook Air.
Can I fly with a 24,000 or 26,800 mAh laptop power bank?
Yes, in carry-on: both are under 100 Wh (86–99 Wh). A 30,000 mAh bank at 111 Wh needs the airline’s approval, two at most, under the ICAO tiers the FAA and EASA follow. Since 27 March 2026 ICAO’s addendum says the bank should not be used or recharged on board; airlines differ, and the airline’s current rule applies.
How fast does a laptop power bank recharge itself?
About the Wh divided by the input watts: 100 Wh at 65 W in about 2 h, at 140 W in about 1 h, plus the taper at the end. Only with a charger and cable that can supply the input rating.
Does a laptop power bank charge a phone too?
Yes, from its second USB-C or USB-A port. Check whether the laptop port drops its output when both are used; most banks split the total between ports.
Sources: USB Power Delivery: profiles, cables and EPR (reference), ChargerLAB: MacBook Pro 16-inch M4 Pro charging review, FAA PackSafe: lithium batteries, ICAO Technical Instructions 2025–2026, Addendum No. 1 (27 March 2026), CAAC 3C requirement for power banks on domestic flights (Hangzhou government portal). Reviewed 19 Oct 2026. General information compiled from public sources, not safety or legal advice. Airline rules change often; your airline’s current rule is the one that applies.
Work out a price per Wh: free power bank calculators · mAh to Wh calculator