Hybrid working has a quiet failure point, and it is almost always a flat battery. The office has sockets, the home office has sockets, but the train, the café and the client’s meeting room often do not, and a laptop that dies mid-presentation is a far bigger problem than a phone that does. A good power bank turns those awkward in-between places into workable ones. The trick is choosing one that can genuinely feed a laptop, not just top up a phone, without weighing as much as the laptop itself.
What actually matters when choosing a power bank for a laptop
- USB-C Power Delivery output that matches your laptop. Many ultraportables charge happily from 45W to 65W, while larger machines want 100W or more. A bank that cannot supply enough power will still help, but it may only slow the battery drain rather than reverse it.
- Capacity measured in milliamp-hours. A 20,000mAh bank typically gives a typical thin-and-light laptop one reasonable top-up, and a 25,000mAh bank gives a little more, but real-world capacity is always lower than the label because of conversion losses.
- Weight and size. Anything much above 25,000mAh becomes a brick in a bag, and most airlines cap cabin power banks at 100Wh, which is why 25,000mAh is the practical ceiling for travel.
- Multiple ports. Being able to charge a laptop and a phone at the same time is the difference between a gadget you use once and one you carry every day.
- A built-in cable or display. These are small conveniences, but a cable you cannot leave at home and a readout that shows the remaining charge both make a bank easier to live with.
- Pass-through charging, so you can plug the bank in at a desk while it powers your devices, and recharge it overnight instead of juggling plugs.
Best portable power banks for hybrid working
All four options below were checked live on Amazon UK for stock, price and review standing before being included, and each suits a slightly different kind of hybrid worker.
Best overall for laptops: UGREEN Nexode 140W 25,000mAh Power Bank
UGREEN’s Nexode 140W is the strongest all-round pick for anyone who wants one bank to keep a laptop alive. The 25,000mAh capacity sits right at the airline-friendly limit, the three USB-C ports mean a laptop, a phone and a pair of earbuds can all charge in one go, and the 140W ceiling comfortably covers the power requirements of most work laptops. With thousands of buyers rating it well, it has a track record that smaller brands cannot match.
It is a substantial lump, so it earns its place in a backpack rather than a jacket pocket. If you carry a laptop most days, though, that weight is a fair trade for not hunting for a socket.
- 140W Powerful Charge: Thanks to the latest PD 3.1 and QC 3.0 technologies, this Laptop power bank fast charging powers up devices at lightning speed (USB C1 140W+ USB C2 65W). MacBook Pro 16'' can be charged to 56% in just 30Mins. With 3 USB ports (2 USB C and 1 USB A), this USB C power bank can fast charge 3 devices simultaneously. No more queuing when charging
- Massive 25,000mAh Capacity: UGREEN 25000mAh power bank can fully charge MacBook Pro 16" up to 1.3 times, Galaxy S23 Ultra up to 3.6 times and iPhone 15 up to 5.2 times. The ultra-high capacity portable charger can meet 5-7 days of battery life, is suitable for travel, business trips, or other outdoor activities and doesn't worry about sudden power off anymore
- Smart & Powerful Design: Advanced technology shrinks size to 160*80.8*26.7mm. Weighing 513g, lighter than other high-power portable chargers of the same capacity, reducing the burden on your journey. Airplane-friendly material, stylish appearance, and simple and portable design ensure your trip around the world with the power
- Powerful 65W Input, Always Standby: UGREEN power bank fast charging can be fully recharged in just 2 hours by a 65W power adapter, 5 times faster than ordinary power banks. You don’t have to wait all night. The digital LED screen shows the remaining battery level, no more guessing based on a few little LEDs
- One for all: This powerful battery pack can meet various charging needs in daily life, compatible with almost all devices like MacBook Pro M3/16", MacBook Air 13", iPad Pro 2022/Air 5, iPhone Air/17/16 Plus/Pro/Pro Max, Galaxy S25/S24 Ultra, Steam Deck, Switch, and heated gilet. Also supports your smaller devices like AirPods, fitness trackers, smart watches, etc
Best for power users: Anker 25,000mAh Power Bank with 165W Total Output
Anker’s 25,000mAh bank trades a higher price for a higher total output of 165W across its ports, which is what you want if you regularly charge a laptop and a tablet at the same time. It is the pick for the person who works from trains and airports, runs a bigger machine, or simply wants the most headroom before power becomes a problem.
Anker has one of the longest and best-reviewed track records in portable charging, and this model has been rated by well over twelve thousand buyers, which is reassuring for a product you will be trusting with expensive devices.
- Triple 100W USB-C Ports for Multi-Device: Designed for multitaskers, featuring three USB-C ports each delivering up to 100W, allowing you to power a MacBook and other devices simultaneously without losing charging speed.
- 25,000mAh for Long-Haul Power: Set off on extended journeys with a huge 25,000mAh capacity that supports your devices through multiple uses, complete with 100W ultra-fast recharging that fuels the power bank to 30% in just 20 minutes.
- Dual Built-In Cables for On-the-Go Use: Equipped with two USB-C cables, one extendable up to 2.3 ft for over 20,000 retractions, and another at 0.98 ft that acts as a durable carrying strap capable of enduring more than 20,000 bends.
- Charge 4 Devices at Once: Never run out of power, whether you're charging smartphones, tablets, or other USB-enabled devices. Connect up to four at once thanks to dual USB-C Cables, a USB-A port, and a USB-C port.
- What You Get: Anker Power Bank (25K, 165W, Built-In and Retractable Cables), user manual, 18-month warranty, and our friendly customer service.
Best budget laptop pick: INIU Laptop Power Bank, 20,000mAh 65W
If your laptop is a lighter, 65W-class machine, the INIU makes far more sense than paying for output you will not use. It delivers 65W of fast charging from a compact 20,000mAh pack and costs well under the premium options, which makes it an easy bank to buy as a spare for the office bag.
It will not charge a power-hungry laptop at full speed, so check your charger’s wattage first, but for an ultraportable it is excellent value.
- From INIU—the SAFE Fast Charge Pro: Experience the safest charging with over 38 million global users. At INIU, we use only the highest-quality materials, so we do have the confidence to provide the industry-leading 3-year warranty and lifetime technical support.
- Fuel MacBook Pro 14" at Full Speed: Unleash the full power of your MacBook Pro 14" with ultra-rapid 65W charging. Say farewell to hours of waiting for your laptop to recharge. Get back to work or entertainment in no time.
- Fast Charging for All Handheld Devices: Not just for the latest iPhone 17 and Samsung superphones. This charger delivers lightning-fast replenishment to a vast array of devices. Whether you're gaming on your SteamDeck, watching movies on a tablet, or juggling your essential gadgets, they'll be ready when you are.
- Charge 3 at Once: With 3 charging ports, including a blazing-fast PD 65W USB-C out port, a PD 36W USB-C fast charging port, and a trusty USB-A port, this power bank is your all-in-one charging solution. It works seamlessly with various cable types, ensuring rapid charging for all your devices.
- Universal Compatibility: Whether it's a high-power device or one with lower current requirements, our charger accommodates them all. Smartphones, tablets, SteamDeck, wireless earbuds, smartwatches, drones - it works with them all.
Best for everyday carry: Anker 20,000mAh Power Bank with Built-in USB-C Cable
Not every hybrid worker needs to run a laptop from a bank. If your main need is keeping a phone, earbuds and a tablet topped up on the commute, the Anker 20,000mAh with its built-in USB-C cable is the simplest option: there is no cable to forget, and the capacity gives a phone several full charges.
It also works for the occasional emergency top-up of a laptop that charges over USB-C, which makes it a good fit for a mixed bag of devices.
- 87W Power to Share: Distribute 87W across three devices, with a single device receiving up to 65W, to rapidly charge iPhones, Samsung phones. Quickly charge a 14" MacBook Pro to 50% in under 40 minutes.
- Speedy Cable Charging: Utilize the built-in cable to elevate your iPhone 15 Pro to 58% or a MacBook Air to 52% in 30 minutes. You can also fully recharge this power bank in 1.5 hours with a 65W charger.
- 20,000mAh for Extended Use: Eliminate concerns about battery depletion with a 20,000mAh power bank that ensures consistent, reliable charging for all your devices, also approved for airline travel.
- Lasts Longer, Charges Faster: The integrated USB-C cable is designed to endure, withstanding over 10,000 bends for dependable charging and convenient storage.
- What You Get: Anker Power Bank (20K, 87W, Built-In USB-C Cable), 157.5 × 73.7 × 25.4 mm (439.4g), welcome guide, 18-month warranty, and friendly customer service.
Comparison at a glance
| Model | Capacity | Output | Best for | Approx. price |
| UGREEN Nexode 140W | 25,000mAh | Up to 140W | Laptop and phone together | £48–£55 |
| Anker 165W | 25,000mAh | Up to 165W total | Heavy travel and larger laptops | £62–£70 |
| INIU 65W | 20,000mAh | Up to 65W | Ultraportable laptops on a budget | £32–£38 |
| Anker 20,000mAh built-in cable | 20,000mAh | Built-in USB-C cable | Phones, tablets and earbuds | £36–£42 |
How much laptop battery will a power bank really give you?
The label capacity is the headline number, but it is not what reaches your laptop. Every conversion between the bank’s internal cells and the voltage your laptop wants loses some energy as heat, so a 25,000mAh bank typically delivers around two-thirds of its rated capacity to a laptop. That is still a meaningful amount: for a typical thin-and-light machine it is roughly one full charge, or an extra half-day of work if you use the laptop modestly.
Charging also takes longer than at a wall socket, and a laptop that is working hard while it charges may gain very little. If you want the bank to genuinely refill the laptop, close heavy applications, drop the screen brightness and let it charge for a while.
Taking a power bank on a train, plane or to a client
Power banks must travel in cabin baggage rather than the hold, and most airlines allow banks up to 100Wh without special approval, which is why 25,000mAh is the usual ceiling. It is worth checking your airline’s own rules before a trip, but the banks above are all within the sort of limit airlines expect.
On a train or at a client’s office, a power bank also saves you from awkward conversations about borrowing sockets. Keeping the bank charged at the end of each working day is a habit worth building, alongside charging your phone and laptop, so it is ready when you need it.
Getting the most from your cables
A power bank is only as capable as the cable you connect it with. A cheap cable that is rated for a few watts will quietly cap the speed, so use a proper USB-C cable that is rated for the wattage of your laptop. Keep a short, good cable permanently in the bank’s pouch so the whole kit lives together in your bag.
Looking after a power bank so it lasts
Lithium batteries are happiest when they are treated gently. Avoid leaving the bank in a hot car or a bag next to a radiator, because heat is the quickest way to shorten its life, and try not to run it completely flat every time. Topping it up a little and often is kinder to the cells than draining it to nothing and then recharging from zero.
It is also worth giving the bank a regular outing rather than leaving it in a drawer for months. A bank that has been sitting empty for a long stretch can lose capacity, so charging it fully every month or two keeps it ready for the day you actually need it.
Do you need a power bank at all?
If you work mostly from a desk with a socket within reach, probably not every day. But hybrid working is exactly the pattern where a bank earns its place: the days you travel, the days the café has no free sockets, and the days a meeting overruns and you are about to lose your screen. A good bank is cheap insurance against all three, and once you have one in the bag it tends to become a habit rather than an afterthought.
A bank also pairs well with the rest of a portable kit. A compact USB-C hub, a good set of earbuds and a decent cable pouch together mean you can plug in and work almost anywhere without hunting for the right adapter or the nearest wall socket.
Which power bank should you buy?
For most hybrid workers who carry a laptop, the UGREEN Nexode 140W is the one to buy: it has the capacity, the ports and the output to keep a work laptop going, at a price that stays sensible. If you work from trains and airports with a bigger machine, the Anker 165W is worth the extra spend.
On a tighter budget with a lighter laptop, the INIU 65W does the job for much less, and if all you ever charge is a phone and earbuds, the Anker 20,000mAh with the built-in cable is the simple, no-fuss choice.
