Say goodbye to cumbersome bricks. The Nano MagGo Slim is among the thinnest, strongest energy banks I’ve seen all 12 months!
Now and again, it occurs. I get up to search out my telephone barely hanging on at 2% as a result of I forgot to cost it, or the charger fell out of the socket in a single day. On days like these, I’m scrambling for energy all day lengthy and stressing out (as a result of mothers’ telephones want to remain at 100%, no excuses). That’s why I used to be curious to attempt the Anker Nano Energy Financial institution (5K MagGo Slim) when a evaluation pattern got here my means. On this hands-on Anker Nano Energy Financial institution evaluation, I’ll share what it’s actually like to make use of at dwelling, at work, and on the go.
Anker Nano Energy Financial institution Overview: First Impressions

The Anker 5K Slim got here in a large, flat field that was so mild, I assumed there will need to have been a mix-up. A telephone case, possibly, however definitely not an influence financial institution. I
Inside, the ability financial institution revealed itself: simply 0.34 inches thick, slimmer than my smartphone, and roughly the scale of a bank card. Regardless of the tiny kind issue, it doesn’t really feel fragile—extra like an ultra-thin exterior arduous drive.
The construct high quality impressed me instantly. The matte end feels easy and premium, nearly like velvet, and the machine is simple to grip. There’s a USB-C port, an influence button, and a 4-LED battery indicator, all neatly built-in with out including bulk.
For somebody like me who’s always on the go (faculty drop-offs, ballet classes, observe observe, the complete household shebang), a slim, light-weight charger like that is good.
Anker Nano Energy Financial institution Overview: Charging Efficiency

Regardless of its compact measurement, the Anker 5K Slim has spectacular charging efficiency. With a 5,000 mAh capability, it’s nice for topping up a smartphone throughout the day.
In my checks with a Samsung Galaxy S23:
- 60% → 80% took about half-hour
- 60% → 100% took roughly 1 hour
These outcomes are glorious for such a skinny machine. The charger helps Qi2 wi-fi charging at as much as 15W and is MagSafe appropriate, making wi-fi top-ups fast and handy. It additionally helps 20W USB-C wired charging, which is helpful in the event you favor cables.
When charging the ability financial institution itself from 0%, it takes round 1.5 hours to achieve full capability utilizing a 20W charger. The graphene cooling expertise and twin NTC chips maintain the machine at a cushty temperature.
Anker Nano Energy Financial institution Overview: On a regular basis Use

After 3 days of hands-on testing, I discovered the Anker 5K Slim a delight. It fees my telephone shortly at my desk and actually turns out to be useful on these days when, for no matter motive, my telephone didn’t cost in a single day.
At some point, I left dwelling with solely 30% battery on my telephone. I hooked up the Anker 5K MagGo Slim and arrived at father or mother/trainer evening with 80% battery. It felt like a magic wand: light-weight in my bag, practically invisible, however highly effective sufficient to save lots of my night.
And, sure, it’s trendy. A number of dad and mom seen it in my bag and couldn’t consider such a slim energy financial institution exists. Who knew chargers may get compliments?
Anker Nano Energy Financial institution Overview: Who That is For

The Anker 5K Slim isn’t designed for long-haul adventures or prolonged off-grid use. In case you want a battery to final a number of days with out shops, you’ll need one thing within the 10,000–20,000 mAh vary.
That mentioned, it’s good for:
- Metropolis vacationers & commuters: slim, trendy, and straightforward to hold
- College students: pocket-friendly measurement and cable-free wi-fi charging retains telephones powered by means of courses and research classes
- Content material creators: vloggers and social media followers can movie and publish with out worrying about battery
- Day trippers: good for a full time out when shops are scarce
Principally, if you would like a light-weight, dependable, and stylish every day energy increase, the 5K MagGo Slim has you lined.
Anker Nano Energy Financial institution Overview: Worth and Availability
The Anker 5K Slim is broadly out there now, each by way of official channels and retailers, although its value locations it towards the premium finish of magnetic 5,000 mAh energy banks. On Amazon, it’s at the moment $45.99 (16% off from $54.99).
Comparable merchandise are cheaper and dearer. So, so far as value goes, I’m gonna name it mid-range. And with the present Amazon low cost, you save much more!
Last Ideas
I really like that the Anker Nano Energy Financial institution (5K MagGo Slim) balances portability, efficiency, and magnificence. It’s like few different chargers, in that respect. If you need an extremely compact energy financial institution that has your again throughout on a regular basis life, I can not consider a greater companion. Actually. I’ve seen plenty of energy banks, and this one is nearly the perfect for each day use.
So, in the event you want a discreet, dependable increase throughout the day and don’t need to lug round a brick, this little charger delivers. Mid-range in value, it’s undoubtedly a contender for my favourite energy banks of 2025!