Best Laptop Power Bank: 2026’s Top Picks for Work and Travel

A flat laptop battery can ruin your day fast, especially with a deadline looming. It doesn’t matter if you’re on a train, in a café, or on the move. Without a socket, you’re stuck. The problem is that the power bank you use for your phone usually isn’t built for a laptop. It simply doesn’t have enough muscle.

That’s why finding the best laptop power bank matters. In this guide, you’ll find laptop-ready options that deliver real power, plus clear advice on what actually matters, so you can choose with confidence.

Best Laptop Power Banks 2026 — Top Picks

For laptop charging, the basics are clear: 20,000mAh+ capacity and 60W+ USB-C Power Delivery output. The best power banks for laptops below all deliver that level of performance, with practical features that fit real daily use. Let’s take a closer look at each one:

Best Compact Laptop Power Bank — Anker Prime Power Bank (20K, 220W)

If you want a smaller bag-friendly option that still handles laptop charging properly, this Anker Prime Power Bank (20K, 220W) focuses on high output in a more compact build. You get a 20,100mAh capacity (72.36Wh) and up to 220W total output, with up to 140W max available from USB-C for devices that can take it.

It’s designed for the “charge fast, move on” routine: the power bank itself can recharge at up to 100W max over USB-C, so you’re not stuck waiting ages before heading out again. A smart display lets you keep an eye on the battery percentage and per-port wattage. It also supports app control for real-time monitoring and customised settings.

PowerIQ™ 4.0 helps by adjusting power automatically, sending more energy to the device that needs it most. ActiveShield™ 4.0 keeps track of temperature during heavy use, which is reassuring when you’re charging a laptop at higher wattages.

What’s good:

• 220W max total outputacross 2× USB-C, 1× USB-A ports
• Up to 140W max USB-C output, enough to fast charge a 16” MacBook Pro (M4 Pro) to 50% in about 30 minutes
• Up to 100W max USB-C inputto refill the power bank faster (50% in 25 minutes)
• Airline-approved 20,100mAh (72.36Wh)capacity in a travel-friendly size (44 × 50 × 147 mm, 510 g)
• App control + smart displayfor keeping track of output and status

Best All-Round Laptop Power Bank — Anker Laptop Power Bank (25K)

If you want one power bank that fits into most routines, this Anker Laptop Power Bank (25K) is the most flexible option. It offers a larger 25,000mAh (90Wh) capacity and can charge up to four devices at once. The layout includes three USB-C outputs and one USB-A port, with two of the USB-C connections built directly into the body.

Those built-in cables are the big draw here. One is retractable, and the other doubles as a carry strap, which makes the power bank easier to grab and reduces the chance of leaving a cable behind.

Any USB-C output can deliver up to 100W, which covers a wide range of laptops, while USB-A handles older devices at up to 33W. When multiple devices are connected, the bank balances output to keep charging stable rather than pushing everything to the limit.

What’s good:

• Ports and cables:2 built-in USB-C cables, 1 USB-C port, 1 USB-A port
• Built-in retractable cableplus a strap-style USB-C cable to cut down on extra leads
• 165W total output, up to 100Won USB-C, 33W on USB-A
• Up to 100W inputfor faster refills
• 25,000mAh(90Wh) capacity for longer days away from sockets
• Smart displayshowing battery and charging status

Best High-Power Laptop Power Bank — Anker Prime Power Bank (26K, 300W)

The Anker Prime Power Bank (26K, 300W) is built for demanding setups. It packs a 26,250mAh battery and delivers up to 300W total output through two USB-C ports and one USB-A port.

Each USB-C port can provide up to 140W, even when all three ports are in use. That makes it possible to charge a 16-inch MacBook Pro, a tablet, and a phone at the same time without slowing everything down.

It also recharges quickly. Using both USB-C ports, input can reach 250W, taking the battery to around 80% in just about 40 minutes. A built-in display and app support let you keep track of battery status and power flow when several devices are connected.

What’s good:

• 300W max total outputacross 2× USB-C and 1× USB-A for higher-demand, multi-device charging
• Up to 140W max USB-C outputfor demanding laptops
• Up to 250W max recharging(using both USB-C ports), hitting 80% in just about 40 minutes
• Flight-approved large 26,250mAh(99.75Wh) capacity for longer unplugged stretches
• Smart display + app controlto track status and manage charging
• PowerIQ™ 4.0and ActiveShield™ 4.0 for smarter, safer charging
• Size/weight: 9 × 38 × 62.7 mm, 600 g

Key Factors to Consider Before Buying a Power Bank for a Laptop

Choosing the best power bank for laptop can be tricky. There are many options available on the market, so how do you know which one to buy? Here are the key factors to consider:

Power output that matches your laptop

Start with your laptop’s original charger or spec sheet. It lists the wattage your laptop expects. To charge properly, your laptop power bank should be able to meet or exceed that wattage from a single USB-C port.

For laptop charging, USB-C Power Delivery (PD) is the key standard:

• PD 3.0 (SPR)tops out at 100W (20V/5A). This covers most laptops. Smaller models and Chromebooks, like a 13-inch MacBook Air, often charge comfortably at 45–70W.
• PD 3.1 (EPR)supports much higher power, up to 240W. Larger laptops can benefit here. For example, a 16-inch MacBook Pro (2021 or later) can draw up to 140W, so you’ll want a PD 3.1 power bank that can deliver 140W for full-speed charging.

Capacity in Wh, not just mAh

Capacity is often listed in mAh, but watt-hours (Wh) tell you how much energy you really get. Airlines also care about Wh. You can convert like this: Wh = (mAh × 3.7) ÷ 1000. 3.7V is the standard operating voltage for the lithium-ion cells used inside most power banks.

What that looks like in practice:

• 10,000mAh ≈ 37WhAfter normal conversion losses (around 30%), this is often only half a charge for a small 13-inch laptop. For meaningful laptop top-ups, aim for 20,000mAh or more.
• For flying, up to 100Wh(roughly 27,000mAh at 3.7V) is usually fine in carry-on luggage. 100–160Wh often requires airline approval.

Rough runtime estimates (laptop off or asleep)

Laptop model	Battery size	From a 20K power bank (≈72Wh)	From a 27K power bank (≈99.9Wh)
MacBook Air 13” (M2)	52.6Wh	~1.1 charges	~1.5 charges
MacBook Pro 16”	100Wh	~0.6 charges	~0.8 charges
Dell XPS 13”	52Wh	~1.1 charges	~1.5 charges
ThinkPad X1 Carbon	57Wh	~1.0 charge	~1.4 charges
HP Spectre x360 14”	66Wh	~0.9 charges	~1.2 charges

These figures are estimates, but they give you a realistic sense of what different capacities can deliver.

Ports and power sharing

Day to day, ports matter as much as raw wattage. Look for at least two USB-C ports if you plan to charge a laptop and another device together. USB-A is still useful for older accessories.

Check how power is split when multiple ports are active. A power bank rated at 140W total might deliver 100W to one USB-C port and only 20–45W to the second.

If you need your laptop and phone charging quickly at the same time, look for:

• higher total output
• clear per-port power guarantees
• smart power managementthat can rebalance output dynamically

Recharging time (input matters too)

Don’t forget how fast the power bank itself recharges. Advanced models accept 65–100W or more when recharging, which can refill them in about an hour. Others are limited to 20W and can take most of a day. If you rely on your power bank daily, faster USB-C input makes a big difference.

Smart extras that genuinely help

Not every extra is fluff. A few features can make life easier:

• Built-in USB-C cablesmean one less thing to pack. Retractable or lanyard-style cables are especially practical.
• A smart displayshowing remaining battery percentage and per-port wattage helps you manage charging when time is tight.

Size, weight, and safety

Higher capacity means more weight. Many 20,000mAh power banks weigh around 400–500g, while larger ones can be heavier. Think about how you’ll carry it.

Finally, check for basic safety features against over-voltage, overheating, and short circuits and proper certification (such as CE or UKCA markings). Good protection keeps both your laptop and your bag safe.

Tips for Using & Maintaining Your Laptop Power Bank

Using a laptop power bank is straightforward, but a few simple habits can help it work better and last longer.

Use the right port and cable

Always charge your laptop from a USB-C Power Delivery port. USB-A ports are usually meant for phones and accessories. Make sure your USB-C cable can handle the power your laptop needs. Higher-watt charging works best with 5A-rated USB-C cables.

Don’t trap heat

Laptop charging creates heat, especially at higher wattages.

• Avoid charging inside tightly packed bags.
• Give the power bank some airflow.
• If it feels very hot, unplug it and let it cool before continuing.

Keeping temperatures down helps protect the battery over time.

Avoid running it flat every time

You don’t need to drain a power bank to zero. Regularly running it empty puts extra strain on the battery. Recharging before it’s fully depleted is better for long-term health.

Store it sensibly

If you won’t use the power bank for a while, don’t store it fully charged or completely empty. Around half charge (40-60%) is a good balance. Keep it somewhere cool and dry.

Handle with care and check it occasionally

Don’t drop or crush your power bank carelessly. Physical damage can affect internal components. Stop using the power bank if you notice swelling, damage, or unusual smells. Also check the ports now and then. Dust and lint can affect charging and are easy to miss.

Conclusion

Choosing the best laptop power bank comes down to knowing what your laptop needs and how you plan to use it. Focus on the right wattage, enough capacity, and ports that fit your setup, rather than chasing the biggest numbers. A well-chosen power bank can keep you working through commutes, travel days, and long hours away from a socket. Get the basics right, and you’ll end up with a reliable backup that fits smoothly into your daily routine.

FAQs

What is the best power bank for a laptop?

For most laptop owners, the Anker Laptop Power Bank (25K, 165W) is the best all-round choice: it’s hand-luggage approved, has built-in + retractable USB-C cables, and can deliver up to 100W from any USB-C port, plenty for many USB-C-charging laptops. For a lighter everyday option, go with the Anker Prime Power Bank (20K, 220W). For higher-demand laptops or multi-device charging, the Anker Prime Power Bank (26K, 300W) gives you the most output headroom.

Is a power bank good for a laptop?

Yes, a power bank can work very well for a laptop, provided it’s built for the job. Phone power banks usually fall short on power. A laptop-ready model uses USB-C Power Delivery, supplies enough wattage (often 60–100W or more), and offers at least 20,000mAh. It gives you extra working time when sockets aren’t available.

Is a 65W power bank good for a laptop?

A 65W USB-C PD power bank works well for many thin-and-light laptops that ship with 45W–65W chargers, like the MacBook Air or Dell XPS 13. It’s often enough to charge or maintain battery levels during light to moderate use. For larger laptops that expect 90W–100W+ or for heavy workloads, 65W may charge very slowly or not keep up.

Do I need a 65W or 90W laptop charger?

Start with the wattage printed on your current charger (or listed in your laptop specs) and match it. Going higher is usually fine because the laptop draws only what it needs. A 90W charger can replace a 65W one safely, while a 65W charger on a 90W laptop may charge slowly, limit performance under load, or not charge while you work.