7 Best Portable Power Banks UK 2026: Top Picks Under £100

Finding the best portable power banks UK 2026 has to offer comes down to what you actually plug into them. A phone-only charger needs different specs to something powering a Steam Deck or a MacBook Air on a train from King’s Cross to Edinburgh.

I’ve spent the past two months testing a dozen power banks, from pocket-sized keyring chargers to the hefty 25,000 mAh bricks that keep you running through a long weekend camping trip. Here are the seven I’d actually recommend in 2026, ranked by who they’ll suit best. If you want a quick shortlist of the best portable power banks UK 2026 has on the shelves right now, this is it.

Prices in this guide were checked on 15 April 2026 against Amazon UK, Currys, and manufacturer websites. Where features have improved or pricing has shifted, I’ve noted it. If you’re after cheaper gear more broadly, our 10 best budget tech gadgets under £50 round-up is a useful companion piece.

What to Look for in the Best Portable Power Banks UK 2026

Capacity (measured in mAh) is the headline number, but it isn’t the whole story. A 10,000 mAh bank will typically give you two full iPhone charges, while 20,000 mAh handles a laptop top-up with juice to spare.

When ranking the best portable power banks UK 2026 can supply, output speed matters more than ever. Look for USB-C Power Delivery (PD) of at least 30W for phones, 65W if you’re charging a laptop, and 100W if you want to run something serious like a MacBook Pro. PPS support is the flag to look for on Samsung phones and recent Pixels.

Check how many devices can charge at once too. Most decent banks now have at least two USB-C ports plus a USB-A, but pass-through charging (charging the bank while it charges your devices) is still inconsistent between brands.

1. Anker 733 Power Bank (GaNPrime) – Best Overall (~£89)

Anker’s hybrid charger is the one I keep coming back to. It doubles as a 65W wall charger and a 10,000 mAh battery, so when you plug it into the mains it tops up your devices first, then itself. Unbeatable for travel.

Output is consistent under load: 65W from USB-C 1, plus 18W from the second USB-C and an older 22.5W USB-A. It’ll happily run a MacBook Air at something close to full speed.

Pros: Dual duty as wall charger and power bank, solid 65W PD, UK plug folds away.
Cons: Heavier than a standalone 10k bank, wider than some competitors.
Where to buy: Amazon UK, Anker.com.

2. Cuktech 10 Ultra – Best High-Output Under £50 (~£45)

Cuktech is Xiaomi’s offshoot power accessory brand, and the 10 Ultra is the kind of thing that embarrasses more established rivals. 20,000 mAh, 150W peak output, a tidy little display on the side, and a price that undercuts the big names by a wide margin.

Output is split across two USB-C ports (one at 100W, one at 45W) plus a 30W USB-A. It powered a gaming laptop during a cross-country train ride without fuss.

Pros: Huge output for the price, useful capacity display, fast self-recharge.
Cons: Short cable included, brand less familiar than Anker or Belkin.
Where to buy: Amazon UK.

3. Nimble Champ Pro – Best Eco Choice (~£79)

If sustainability is on your list, Nimble’s power banks are made from recycled plastics and come in plastic-free packaging. The Champ Pro has 20,000 mAh, two USB-C ports (one at 65W), and a matte, grippy finish that doesn’t attract fingerprints.

Charge times are a little slower than the Cuktech, but Nimble’s build quality and one-to-one recycling scheme (send in any old power bank and they’ll recycle it) are unmatched at this price.

Pros: Recycled materials, proper 65W PD, solid build.
Cons: Slower to refill than competitors, not widely stocked on the high street.
Where to buy: Nimble.com, Amazon UK.

4. Baseus Blade 2 – Best for Laptops (~£95)

Laptop users who want something that slides into a slim bag rather than lumping around a brick should look at the Baseus Blade 2. It’s only 18mm thick, holds 20,000 mAh, and pushes out 140W from its primary USB-C port.

The flat form factor makes it ideal for sliding between a laptop and a paperback in a rucksack. Airline-safe too – it stays just under the 100Wh limit for hand luggage.

Pros: Slim design, 140W laptop output, airline-friendly.
Cons: Flat shape means all ports are on one edge, which can be awkward.
Where to buy: Amazon UK.

5. INIU P63 – Best Budget Portable Power Bank (~£29)

If you just want a reliable 10,000 mAh bank that’ll top up a phone twice without costing much, INIU’s P63 is tough to beat. It’s credit-card sized, has a proper 22.5W output, and comes with a three-year warranty that’s longer than most competitors’.

It won’t charge a laptop, and don’t expect fancy displays or pass-through perks. But for £29, it’s the one I’d buy for a backpack or glove box.

Pros: Tiny size, long warranty, genuinely cheap.
Cons: Only 22.5W max output, not suitable for laptops.
Where to buy: Amazon UK.

6. Belkin BoostCharge Pro 10K (MagSafe) – Best for iPhone Users (~£59)

Apple’s own MagSafe power bank was quietly discontinued two years ago, which made the Belkin BoostCharge Pro 10K the default recommendation for iPhone users. The updated 2026 version upgrades MagSafe wireless charging to 15W and adds a kickstand.

The 10,000 mAh cell will give you around 1.8 full iPhone 16 charges, and the magnet grip is strong enough that your phone stays attached when you’re moving around.

Pros: Proper MagSafe 15W, kickstand, premium feel.
Cons: Capacity is modest for the price, heavier than pure wireless pads.
Where to buy: Amazon UK, Currys, Apple.com.

7. RAVPower PD Pioneer 30,000mAh – Best for Camping and Long Trips (~£85)

When you genuinely need a lot of capacity – a festival, a long camping weekend, filming a weekend documentary – the RAVPower Pioneer 30K is my pick. It packs enough juice to charge a phone six times, or run a portable router for a couple of days.

Output sits at a respectable 100W via USB-C PD, and there are two USB-A ports for older gadgets. It’s not light, but for the capacity it’s reasonable.

Pros: Huge capacity, solid 100W output, good build quality.
Cons: Heavy (around 620g), too big for everyday carry.
Where to buy: Amazon UK.

Is a More Expensive Power Bank Worth It?

The best portable power banks UK 2026 has to offer cover a huge range of prices. If you only ever charge a phone, spending over £50 is probably overkill. The INIU P63 or a similar 10k bank from Anker will do almost everything you need.

With the best portable power banks UK 2026 retailers stock, it starts to make sense to pay more is when you’re charging a laptop, running multiple devices at once, or travelling regularly. USB-C Power Delivery at 65W and above pulls the price up, but it also means you can leave the laptop brick at home.

The best portable power banks UK 2026 buyers can get hold of are nearly all airline safe, but the capacity creep in the past year means it’s worth a check. Watch for airline restrictions too. Anything over 100Wh (roughly 27,000 mAh) is generally not allowed in hand luggage on UK flights, and even some 20k banks get close to that limit. The UK Civil Aviation Authority’s guidance on lithium batteries is worth a read before any long-haul trip.

Final Verdict on the Best Portable Power Banks UK 2026

For most people, the Anker 733 is the best portable power banks UK 2026 recommendation full stop – it’s the one you grab when you can only own one charger. If budget’s tight, the INIU P63 punches massively above its price tag. And for anyone with a laptop they actually use on trains, the Baseus Blade 2 is the most sensible shape on the market.

Whichever you pick, check the printed mAh and watt-hour rating before flying, and look for a two-year warranty minimum. Buying from Amazon UK or a high-street retailer like Currys also makes returns easier if the bank turns out to be dud.

For more tech buying guides, have a look at our round-up of the best headphones 2026 in the UK or our picks for the travel gadgets worth packing before your next holiday. Both pair well with any of the power banks above.