We’ve all been there. You’re about to book that Grab, snap that perfect #OOTD shot for the ‘Gram, or reply to a critical work message, and… poof. Black screen.
For years, the solution has been as clunky as it is necessary: the humble power bank. But let’s be honest, most of them are absolute bricks. They’re heavy, ugly, and create a tangled mess of cables that ruins the clean, minimalist aesthetic we all crave. You bought that sleek, S$2,000 iPhone, only to have it tethered to a chunky, S$50 brick that weighs down your pocket or your micro-bag.
It’s a functional solution, but it’s far from an elegant one.
Enter Anker, with what looks, on paper, to be the perfect answer. The one we’ve all been waiting for. It’s the new Anker Nano Wireless Power Bank (A1665). The brand promises a “credit card” sized, “ultra-slim” profile that delivers next-gen Qi2 wireless charging.
It’s the dream, right? A power bank so thin, so light, and so seamless that you actually want to carry it. One that complements your tech, rather than clashing with it.
But as we all know, in the world of tech, if something seems too good to be true, it often is. We got our hands on one, and after putting it through its paces, the question we’re asking is: Is the Anker A1665 truly the iPhone’s perfect partner, or is it just a very, very pretty face?
The 8.6mm Illusion: Design & Feel
Getting this power bank in your hand is… an experience. The first thing you’ll notice isn’t the tech; it’s the feel. Anker has absolutely nailed the industrial design here. At just 8.6mm, it is unbelievably thin and barely thicker than a modern iPhone in a slim case. The “credit card” comparison isn’t just marketing fluff; it’s genuinely that compact.
It feels less like a piece of utility tech and more like a premium, high-end accessory. The soft-touch, velvety-matte finish is gorgeous. It resists fingerprints, feels comfortable and warm in the hand, and just looks expensive.
This is, without a doubt, the first power bank we’ve seen that you wouldn’t be embarrassed to snap onto your phone at a nice café or a business meeting. For the Gen Z and Gen Alpha crowd, where aesthetic is just as important as function, Anker has passed the “vibe check” with flying colours. It slides into a jeans pocket, a wallet, or a clutch with zero bulk.
From a purely design-first perspective, it’s a 10/10.
The Qi2 Promise: Power On Paper
Okay, so it’s pretty. But can it perform? On paper, this thing is a beast for its size!
This isn’t your old, first-gen “MagSafe compatible” charger that trickles power at a snail’s pace. The A1665 is officially Qi2 certified. This is the new universal standard that basically incorporates Apple’s MagSafe technology, meaning it’s supposed to deliver up to 15W of wireless charging power. That’s the full-speed, official Apple MagSafe speed, which is double the 7.5W most third-party wireless chargers were stuck at for years.
If you’re in a real hurry, it also has a 20W USB-C port for high-speed wired charging (and for recharging the power bank itself).
Inside this wafer-thin chassis is a 5,000mAh battery. On paper, that’s enough to give a dead iPhone 15 Pro a full charge, or get an iPhone 15 Pro Max from near-empty to full.
This is the spec sheet we’ve all been waiting for. A slim, 15W wireless, 5,000mAh pack. The holy trinity. But… this is where we get to the “reality” part of the review.
The On-The-Go Reality: A Tale of Heat, Haste, and Expectations
This is where the “too good to be true” asterisk starts to appear. After using this as our daily driver, we found that the A1665 is a product of brilliant, but significant, compromises.
A Small Hiccup in the ‘Seamless’ Dream
The first thing you’ll notice, especially if you’ve ever used Apple’s official MagSafe Battery Pack, is that snapping the A1665 onto your phone does… well, nothing.
To start the wireless charging, you have to manually press a small button on the side.
For Apple purists used to that “snap-and-go” magic, this feels like an extra step. A minor, one-second-long papercut in an otherwise seamless experience. It’s a small quirk, but it’s one that breaks the “it just works” illusion. It’s likely a choice to conserve battery (so it’s not always “on”), but it’s a manual step you have to remember.
Let’s Talk About ‘5,000mAh’ – A Quick Physics Lesson
The next thing you have to manage is your own expectations of that 5,000mAh capacity. If you think you’re getting a full 0-100% charge for your Pro Max phone, you’re going to be disappointed.
This is not a con; it’s physics. No 5,000mAh power bank on earth will give you 5,000mAh of deliverable charge. Energy is always lost during voltage conversion and, especially with wireless charging, as heat. The research documentation confirms this, stating the real-world deliverable capacity is closer to 2,750-3,250mAh.
So, what does that mean for you?
It means you should re-frame what this device is for. This is not a full 0-100% charger. This is your “Get Me Through The Night” emergency pack. This is your “I’m at 20% and I have two more hours at this event” lifesaver. It will comfortably give an iPhone 15/16 Pro Max a 60-70% boost, which, let’s be honest, is more than enough to save you from any low-battery anxiety. It’s a top-up, not a full-up.
The 15W ‘Asterisk’ and The 40°C Safety Net
This is the most critical point of the review. Does it actually deliver that 15W Qi2 speed?
Yes… and no.
When you first snap it on and press the button, it can and does ramp up to 15W. But as anyone who has ever fast-charged anything knows, wireless charging creates heat. A lot of heat. And in a chassis this thin, there’s not a lot of room for that heat to go.
This is where Anker’s “Smart Temperature Control” (what their internal docs call ActiveShield technology) kicks in aggressively. The press release boasts that it keeps the back shell below 40°C. And it does! But to achieve that, it has to do something: it throttles the charging speed.
In our testing, and as confirmed by the research, the A1665 will hold 15W for a short burst, but as the temperature (of both the phone and the pack) rises, it intentionally throttles its speed down. Way down. Often, it settles at the old 7.5W Qi speed.
This is the product’s biggest compromise. You are buying a 15W charger that, for the sake of thermal safety, will spend a lot of its time charging at 7.5W.
Now, is this a “failure”? We’d argue it’s not. It’s a feature, not a bug. Anker has made a deliberate, conscious choice: they have prioritised long-term battery health (for your S$2,000 iPhone) and user comfort over raw, sustained speed. A device that gets alarmingly hot is a liability. This device gets warm, as expected, but never “panini press” hot. Anker is playing the long game, even if it means sacrificing the headline-grabbing 15W spec in real-world endurance.
The Final Verdict: Who Is This Actually For?
So, after all that, is the Anker Nano Wireless Power Bank (A1665) a ‘buy’ at S$89.99?
If you are a hardcore power user who needs to charge a laptop, a Steam Deck, and a phone from 0-100% while editing a 4K video… this is absolutely not for you. You need a 25,000mAh “brick,” and you know it.
But if you are what the Anker research doc calls the “iPhone Minimalist,” then this might be the best S$90 you can spend.
This power bank is for a specific person:
- You care about aesthetics, a lot.
- You hate carrying cables and bulky items.
- You are a student, a professional, or a socialite who is rarely that far from a wall plug, but needs to survive the commute, the lecture, the meeting, or the night out.
- You see a power bank as an emergency top-up, not an off-grid survival tool.
For this person, the A1665 is a triumph. Its slim, premium design is the primary feature. The fact that it throttles its speed for safety is a bonus, as it protects your expensive phone. And the 60-70% capacity boost is more than enough to get you home.
The DANAMIC Take
The Anker Nano Wireless Power Bank (A1665) is a product of beautiful, intelligent compromises. It’s one of the best-looking, best-feeling emergency power banks we’ve ever tested.
It doesn’t quite live up to the marketing dream of a “5,000mAh, 15W-all-the-time” powerhouse, because physics simply won’t allow it in a body this thin.
In exchange, it delivers something arguably more important: a safe, comfortable, and impossibly stylish charge that solves the real problem of battery anxiety, without the bulk. For the Gen Z or Gen Alpha user who values form and feel, the A1665 isn’t just a power bank; it’s a fully-fledged tech accessory.
The Anker Nano Wireless Power Bank (A1665) is available in Singapore now at their official website, Shopee, and Lazada!
For more information, visit https://anker.com.sg/ or follow Anker Singapore on:
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