Picking the right power bank for your iPhone 15 comes down to capacity, charging speed, and how you like to carry it. This guide covers three solid options for iPhone 15 owners, from a compact everyday top-up to a Qi2 magnetic pack that charges without a cable at all.
Top picks
1. Anker Nano Power Bank 10000mAh 30W - Best Overall
SPP Score: 6.5 / 10 - 10000mAh capacity, 30W output. Our all-round pick.
Capability 6/10 - Versatility 5/10 - Build 8/10 - Value 8/10
The Anker Nano Power Bank pairs a 10000mAh capacity with 30W USB-C Power Delivery output, which is enough to fast-charge an iPhone 15. The 10000mAh cell gives you roughly a couple of full iPhone charges in a pocket-sized shell, the 30W PD rating means you're not waiting around for a slow trickle, and the charging cable is built into the pack itself, so there's nothing extra to pack. It's the sweet spot of speed, capacity, and portability for most iPhone 15 owners.
Pros
- ✓ 30W USB-C Power Delivery fast-charges an iPhone 15
- ✓ 10000mAh capacity covers up to two full phone charges
- ✓ Built-in USB-C cable means there's nothing extra to carry
Cons
- ✗ Wired-only, so no MagSafe-style wireless charging
- ✗ Built-in USB-C cable ties you to its fixed length and fitting
Who it's for: iPhone 15 owners who want fast wired charging in a small, travel-friendly unit. Who it's not for: Anyone set on cable-free, snap-on wireless charging - that's the MagGo below.
2. INIU Power Bank 10000mAh 22.5W Slim - Best Budget
SPP Score: 6.8 / 10 - 10000mAh in the slimmest pack here, with 22.5W fast charging. Our value pick.
Capability 6/10 - Versatility 6/10 - Build 8/10 - Value 8/10
The INIU is the bare-basics route to the same 10000mAh: no built-in cable, just a genuinely slim pack that rides in a pocket next to the phone. Its 22.5W PD and QC fast charging keeps an iPhone 15 topping up quickly, and with USB-C in and out plus a USB-A port it works with whichever USB-C cable you already own. If the overall pick's built-in cable is a feature you'd never use, this is the same capacity without the extras.
Pros
- ✓ Ultra-slim build that carries next to the phone without bulking a pocket
- ✓ 22.5W PD and QC fast charging keeps an iPhone 15 topping up quickly
- ✓ USB-C in and out plus USB-A, so it works with the cables you already own
Cons
- ✗ 22.5W trails the 30W of the overall pick, so top-ups run a touch slower
- ✗ No built-in cable, so you supply and carry your own lead
Who it's for: Anyone who already owns good USB-C cables and wants the thinnest, simplest pack. Who it's not for: Buyers who want a built-in cable or the fastest wired top-ups in this guide.
3. Anker MagGo Power Bank 10000mAh Qi2 15W - Best Premium
SPP Score: 7.3 / 10 - 10000mAh with Qi2 15W magnetic wireless, smart display and foldable stand. Our pick for maximum capability.
Capability 6/10 - Versatility 8/10 - Build 9/10 - Value 7/10
The MagGo is the pick that finally answers the wireless question. It's Qi2-certified, so it snaps magnetically onto the back of an iPhone 15 and charges at the standard's full 15W with no cable involved. A foldable stand tilts the phone for a desk or bedside table while it tops up, and the small smart display shows charge status at a glance. When you'd rather plug in, wired USB-C runs at up to 27W by Anker's rating, which still fast-charges an iPhone 15.
Pros
- ✓ Qi2 15W magnetic wireless charging: snap it on, no cable to carry at all
- ✓ Foldable stand props the phone up while it charges, handy for video and calls
- ✓ Smart display shows charge status, and USB-C handles wired top-ups in and out
Cons
- ✗ Wired output is 27W, a shade under the 30W of the wired picks above
- ✗ Wireless charging loses some energy as heat, so a full 10000mAh stretches further over a cable
Who it's for: iPhone 15 owners who want snap-on, cable-free charging with a stand for desk or travel. Who it's not for: Anyone who only ever charges over a cable - the wired picks above are faster over a wire and simpler.
Quick verdict
For most iPhone 15 owners, the Anker Nano Power Bank 10000mAh 30W is the pick to beat, balancing fast 30W wired charging with a pocketable size. As the value pick, the INIU Power Bank 10000mAh 22.5W Slim keeps things thin and simple, while the Anker MagGo Power Bank 10000mAh Qi2 15W is the step up for anyone who wants snap-on magnetic charging with no cable involved at all.
How we chose
An iPhone 15 needs surprisingly little to charge well: enough mAh for a day or two of top-ups, USB-C Power Delivery for fast charging, decent build, and a pack you'll actually carry day to day. We weighed UK everyday-carry practicality and overall value across compact, simple, and feature-rich options. Each link lands on the Amazon UK listing, where you can confirm what's in the box before you buy.
FAQ
Q: How many times will a 10000mAh power bank charge an iPhone 15? A: A 10000mAh pack will typically give an iPhone 15 roughly one and a half to two full charges, depending on real-world efficiency and how you use the phone while charging.
Q: Do I need a 30W power bank to fast-charge an iPhone 15? A: No - the iPhone 15 fast-charges over USB-C Power Delivery without needing the full 30W. Both the 22.5W INIU and the 30W Nano fast-charge it; the Nano's 30W simply adds headroom to spare.
Q: What is Qi2 and is it the same as MagSafe? A: Qi2 is a wireless charging standard that uses magnetic alignment similar to Apple's MagSafe, letting a compatible pack snap onto the back of an iPhone 15 for cable-free charging. Our premium MagGo pick is exactly that: Qi2-certified magnetic wireless. If magnetic charging is the whole point for you, our MagSafe power bank guide compares three across the 15W and 25W classes.
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