Best Portable Charger Under £30 in 2026 (UK Reviews)
Quick Summary
- Best Overall: Anker PowerCore 10000 — outstanding capacity, fast charging, and rock-solid build quality at a brilliant price.
- Best Budget: iMuto 6700mAh Compact Power Bank — ultra-affordable, pocket-sized, and dependable for everyday top-ups.
- Best Premium Pick Under £30: INIU 22.5W 10000mAh Power Bank — rapid 22.5W fast charging and a slim profile for power users on the go.
Running out of battery when you need your phone most is genuinely frustrating — whether you’re commuting into London, hiking in the Lake District, or travelling through Europe. The good news is that you don’t need to spend a fortune to stay charged. In 2026, the portable charger market has matured brilliantly, meaning you can get a high-capacity, fast-charging power bank for well under £30. This guide cuts through the noise to highlight the very best options available in the UK right now, with honest pros and cons to help you find the perfect match for your lifestyle and budget.
What to Look For in a Portable Charger Under £30
- Battery Capacity (mAh): Measured in milliamp hours, capacity tells you how many charges you’ll get. A 10,000mAh bank will charge a typical smartphone roughly 2–2.5 times, while 6,000–7,000mAh is enough for a reliable top-up or two throughout the day.
- Charging Speed: Look for power banks that support fast-charging standards such as Power Delivery (PD) or Quick Charge (QC 3.0). These can charge your device up to four times faster than a standard 5W output — invaluable when you’re short on time.
- Number of Ports: If you carry multiple devices — a phone, earbuds, and a smartwatch, for example — choose a bank with at least two USB-A outputs or a combination of USB-A and USB-C ports so you can charge everything simultaneously.
- Size and Weight: A power bank is only useful if you actually carry it. Compact models under 200g slip easily into a jacket pocket or handbag, whilst larger 20,000mAh slabs are better suited to a rucksack for longer trips.
Comparison at a Glance
| Product | Price | Best For | Rating |
|---|---|---|---|
| Anker PowerCore 10000 | £26 | Everyday all-rounder | ★★★★★ |
| iMuto 6700mAh Compact | £12 | Budget-conscious buyers | ★★★★☆ |
| INIU 22.5W 10000mAh | £28 | Fast-charging power users | ★★★★☆ |
Our Top Picks
Anker PowerCore 10000
Anker has long been the gold standard for affordable portable chargers, and the PowerCore 10000 remains their flagship budget model in 2026. It packs a genuine 10,000mAh of capacity into a palm-sized, matt-finish casing that genuinely feels premium. With Anker’s proprietary PowerIQ technology, it automatically detects and delivers the optimal charging current for whatever device you plug in — up to 12W output per port. It’s TSA and airline carry-on approved, and Anker’s reputation for reliability means this is a power bank you’ll still be using in three years’ time.
Pros
- Compact and lightweight at just 180g
- Reliable PowerIQ adaptive charging
- Excellent build quality and brand reputation
- Charges a standard smartphone 2–2.5 times
Cons
- No USB-C Power Delivery on the base model
- Charges itself relatively slowly via Micro-USB
iMuto 6700mAh Compact Power Bank
If you want to spend as little as possible without sacrificing reliability, the iMuto 6700mAh is a standout option. It’s barely bigger than a lipstick case, weighing in at just 130g, which means it practically disappears into a pocket or bag. The single USB-A output delivers a steady 2.4A, which is perfectly adequate for topping up a smartphone during a commute or lunch break. The LED indicator shows remaining charge in four stages, and the build quality is surprisingly solid for the price. It won’t replace your phone’s battery twice over, but for a daily emergency top-up on a tight budget, it’s hard to fault.
Pros
- Exceptionally affordable at around £12
- Ultra-compact and lightweight at 130g
- Solid 2.4A output for standard devices
Cons
- Only one charging port
- No fast-charging support
- Lower capacity limits it to roughly one full charge
INIU 22.5W 10000mAh Power Bank
The INIU 22.5W pushes what’s possible for under £30 by offering genuine fast charging that rivals power banks costing twice the price. Its USB-C port supports 20W PD output, whilst the USB-A port handles 22.5W Quick Charge — meaning a compatible phone like a Samsung Galaxy or iPhone can go from flat to 50% in as little as 25 minutes. It has a bright, clear LED percentage display (rather than vague indicator dots), three output ports in total, and a slim 13mm profile. If speed is your priority, this is the one to buy.
Pros
- Exceptional 22.5W fast charging
- Precise LED percentage display
- Three output ports (USB-C + 2× USB-A)
- Slim, stylish design at just 13mm thick
Cons
- Slightly heavier than the Anker at 210g
- Fast charging only works with compatible devices
Who Should Buy a Portable Charger Under £30?
A portable charger under £30 is ideal for the vast majority of smartphone users in the UK. If you rely on your phone for navigation, contactless payments, or staying in touch during a long day out — whether that’s a city break, a festival, a hiking trip, or simply a busy day of back-to-back meetings — a compact power bank is one of the most practical purchases you can make. Students heading to university will especially benefit, as will commuters on long train or coach journeys where power sockets are unreliable or unavailable.
These chargers are also excellent gifts for parents, grandparents, or anyone less tech-savvy who simply needs the reassurance of a backup battery without the complexity of premium features. At this price point, you’re not making any meaningful sacrifice in quality — the three options above are all genuinely reliable devices that will serve you well for years. If you regularly charge multiple devices simultaneously or need to top up a laptop, you may want to consider stepping up to a 20,000mAh or 65W+ model, but for phone users, under £30 is the sweet spot.
Final Verdict
The portable charger market in 2026 offers genuinely impressive value at the sub-£30 price point. Our top recommendation remains the Anker PowerCore 10000 — its blend of capacity, reliability, and compact dimensions makes it the safest, most versatile choice for most people. If budget is your absolute priority, the iMuto 6700mAh is a trustworthy and tiny option that won’t let you down. And if you want the fastest charging speeds the budget allows, the INIU 22.5W is nothing short of remarkable for the money. Whichever you choose, you’ll be covered.
Frequently Asked Questions
Is a portable charger under £30 any good?
Absolutely — at this price point in 2026 you can buy a power bank from reputable brands like Anker and INIU with genuine 10,000mAh capacity and fast-charging support. Budget no longer means poor quality in the portable charger market. The three options in this guide all have thousands of positive UK reviews and are backed by solid warranties.
How many times will a 10,000mAh power bank charge my phone?
A 10,000mAh power bank will typically charge a modern smartphone (with a 4,000–5,000mAh battery) approximately two full times. In practice, you’ll get slightly less due to energy lost during conversion, so expect around 1.8–2.3 full charges depending on your phone model. Older phones with smaller batteries will charge even more times.
Can I take a portable charger on a plane in the UK?
Yes, but only in your hand luggage — power banks must never go in checked baggage. UK and EU aviation rules permit power banks up to 100Wh in carry-on bags without special approval. A 10,000mAh bank at 3.7V works out to around 37Wh, well within the limit. Always check with your specific airline before travelling to be certain.
What is the difference between Power Delivery and Quick Charge?
Power Delivery (PD) is a universal fast-charging standard that works over USB-C and is supported by iPhones, iPads, MacBooks, and many Android devices. Quick Charge (QC) is a Qualcomm technology found primarily in Android smartphones via USB-A ports. Both dramatically reduce charging times — the INIU 22.5W in this guide supports both standards, making it highly versatile.
How long does it take to recharge a portable charger itself?
Recharge time varies significantly depending on the bank’s capacity and its input charging speed. A 10,000mAh bank charged via a standard 5W USB plug can take 5–7 hours to fully recharge. Models that support 18W or 20W input via USB-C — such as the INIU 22.5W — can refill in under 3 hours. Always use a quality wall adaptor for the fastest recharge times.