At a glance

Expert’s Rating

Pros

• Super slim
• Super small
• Super colors
• 10K is 15W QI2

Our Verdict

The compact PicoGo is somewhere in between its nearest competitors in quite a sweet spot of size and performance—the 5K model equals the record for lightest power bank we have tested.

Price When Reviewed

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Best Pricing Today

Price When Reviewed

$35.99

Best Prices Today: Baseus PicoGo Ultra-Slim 5K Magnetic Power Bank

$35.99

Lithium-ion scientists must have been busy lately, with magnetic power banks getting slimmer and smaller but just as powerful.

Power banks are useful tools to carry around with you, and the smaller they get the easier they are to carry with you in a handbag, backpack compartment or in your jacket pocket.

Baseus has made some of our favorite battery packs in the past and we’re fans of its latest range, the PicoGo AM41 Ultra-Slim Power Banks.

While neither the very slimmest, lightest or smallest, the PicoGo AM41 hits a sweet spot somewhere in the middle of its nearest rivals.

Skinny models

The Baseus PicoGo AM41 Ultra-Slim is available in the two standard phone power bank battery capacities: 5000mAh (5K) and 10000mAh (10K).

The smaller of the two, the 5K PicoGo measures 3.9 x 2.6 x 0.36 inches (10 x 6.7 x 0.9cm) and weighs a mere 3.9oz (111g).

The smallest magnetic power bank we have tested is the $39 Infinacore M3 Mini Wireless 5K Power Bank, which is shorter and less wide than the 5K PicoGo but a little fatter; see our photo below.

The slimmest we have got our hands on is the Vonmählen Evergreen Mag 5000mAh Power Bank, also $39, which is longer and wider than the Infinacore but a smidgen thinner.

The Baseus PicoGo 5K is a tiny bit shorter and less wide than the Vonmählen but almost exactly the same slim depth and is 13g lighter. It is precisely the same weight (111g) as the Infinacore. That’s why we think it’s the sweet spot between the three.

The differences might appear minor but if you are seeking the smallest lightest and thinnest magnetic power bank, the fine margins still matter.

The larger capacity 10K Baseus PicoGo measures 4 x 2.7 x 0.6 inches (10.2 x 6.8 x 1.5cm) and weighs 6.2oz (175g). It’s about the same credit-card length and width but noticeably thicker in depth than the 5K, as you’d expect from a much more powerful battery pack.

Charge of the light brigade

Vital statistics for power banks don’t end on the measurements. Maybe most important of all is charging performance. The three rival power banks above are rated at 5000mAh battery capacity, but in our tests some perform better than others.

We let our test unit iPhone 16 Pro‘s battery run right down to zero, clamp on the magnetic power bank, and wait until the battery pack runs out and take note of the iPhone’s new battery percentage.

The Infinacore is cute but was let down by its recharge credentials, recharging the faded iPhone to 56%—enough to get you to the next charging station but lower than both the Vonmählen (70%) and Baseus (71%). That’s an extra quarter’s worth of charging power in the slightly larger but slimmer power banks.

Opt for the fatter 10K PicoGo and you’ll get exactly twice the charging performance (142%). Usually, 10K power banks aren’t as much as twice as powerful as their 5K equivalents so we were surprised that this was the case with the PicoGo range.

The 10K has another charging benefit: its wireless charging uses the Qi2 standard, giving it a speed of 15W compared to the merely MagSafe-compatible 7.5W wireless charging of the 5K model. For comparison, the 5K Infinacore is also rated at 7.5W while the Vonmählen 5K reaches 15W. The 10K’s 15W speed means the power bank will power up your phone faster when charging wirelessly.

For even faster charging you can attach the included braided USB-C cable and wire-charge the 5K PicoGo at 20W and the 10K PicoGo at 27W.

Power looks

The Baseus PicoGo has a sandblasted silicone finish to its aluminum alloy shell, making it quite strokable. The 5K and 10K models are each available in four colors: Space Grey, Nebula Pink, Natural Titanium, Cosmic Black.

Baseus is planning a version of the 5K PicoGo Power Bank with a kickstand, but this wasn’t available to us at the time of testing.

When you must recharge the power bank itself, input charging speed is 15W for the 5K and 20W for the 10K.

Combining wireless charging and wired to power two devices at the same time brings down the total speed to just 12W for each power bank.

Price

Prices for the 5K Baseus PicoGo Power Bank start at $34.99 / £34.99, and $45.99 / £47.99 for the 10K model. These prices are what we’d expect for a quality magnetic power bank and very reasonable for ones of this quality.

Compare the prices and test results of competing magnetic power banks in our roundup of the best MagSafe and magnetic power banks.

Should you buy the Baseus PicoGo AM41 Ultra-Slim Power Bank?

While it’s not the very slimmest or smallest, the compact PicoGo is somewhere in between its nearest competitors in quite a sweet spot and the 5K model equals the record for lightest power bank we have tested.

Both compare well on performance in our recharging tests, and look and feel great in hand. As such we would be happy to keep the PicoGo to hand when out and about to rescue us from a fading battery emergency.

Baseus is slowly but steadily building momentum globally — the brand makes some of my favorite charging accessories. I use its retractable 100W USB-C cable to charge my daily driver, and it’s the only cable I have on my desk. The Blade 2 is a sleek power bank with good charging potential, and the new Nomos charging station is an easy recommendation thanks to its integrated Qi 2 charging pad.

While Baseus is no stranger to power banks, its latest are easily its best yet. The PicoGo Magnetic series is aimed at travel, and it contains the thinnest power banks I’ve used yet. Baseus has two models available; a 5,000mAh power bank that’s just 7.6mm thick, and a 10,000mAh model. The 5,000mAh power bank costs just $26 on Amazon, and it’s understandable why it is one of the best-selling power banks on the retailer over the last few months.

The 10,000mAh model is even more interesting, and it comes in at $39 on Amazon. Both power banks have magnetic connectors as standard, and the 10,000mAh model gets Qi 2 integration, giving it an edge in this regard. I’ve been using both the 5,000mAh and 10,000mAh PicoGo power banks over the course of the last two months, and I like them so much that they’re now my go-to choice in everyday use.

Let’s start with the 5,000mAh PicoGo, as its ultra-thin design allows it to be portable like no other power bank. It’s thinner than most phones, and at 107g, it is the lightest power bank I used. Baseus sent the grey and pink models, and both designs have aluminum shells that are built to last.

The design is elegant thanks to smoothly curved sides, and the power bank has strong magnets. It had no issues staying connected to my iPhone 16 Pro Max, and even wiggling the phone vigorously didn’t dislodge the power bank. There’s an LED indicator at the back that shows remaining battery level, and you get a USB-C port at the bottom that lets you charge a secondary device.

It charges at 15W via MagSafe and 20W with the USB-C port, but as the power budget is 20W, that’s what you get in total when charging two devices simultaneously. And because of the energy transfer, you get about 2,800mAh of usable power out of the 5,000mAh model — that’s in line with every other power bank I tested recently.

While the 5,000mAh model isn’t enough to charge an Android phone fully — it managed to deliver up to 50% to my Vivo X200 Pro — it is a great choice if you’re out and about and need a sleek power bank that doesn’t add much heft or bulk to your phone. Combine that with the great design and build quality, and attractive color options, and it is about as straightforward a recommendation as I can make with any charging tech.

If you need more power, then the PicoGo 10,000mAh model is a better choice. It has the same design as its smaller sibling, but it’s thicker at 12.7mm, and weighs 221g. It’s still a manageable heft and size, and the added bonus is that you get Qi 2 charging, going up to 15W. The 10,000mAh model has the same great set of magnets, and although it is heavier, it manages to stay attached to any phone with a magnetic case.

It has the same design, you can pick it up in the same color options, and it also gets a USB-C port, this time going up to 27W over the PD standard. The only difference between the two models is that the 10,000mAh variant gets Qi 2, and it has double the battery size.

It even has a similar charging efficiency, so you’ll get around 5,600mAh to 5,700mAh of usable power — more than enough to charge most phones fully. While I tend to use bigger power banks, I found the 5,000mAh model to be better-suited to my needs, and even though it doesn’t have enough power to fully charge a phone, it gets most devices to at least 60%, and that’s enough to last a good chunk of the day.

Given the ultra-thin design and lightweight body, I’d suggest getting the 5,000mAh model; it’s just convenient to be able to charge your phone if it’s running low. And if you need Qi 2, the 10,000mAh PicoGo is a good option to consider. Basically, these are the two best power banks around if you need a thin-and-light design and reliable power delivery.