Anker MagGo 10K Slim: Is This Qi2 Power Bank Worth Carrying?

The Anker MagGo 10K Slim (A1664) is worth buying if you want substantial magnetic iPhone backup power in a pack that stays relatively thin. Its main compromise is that “slim” does not mean light: at 7.62 oz, it adds noticeable weight, and it gives up the stand and display available on a thicker magnetic-bank design. Anker specifications Macworld review

Pros and cons

Pros

• Slim 0.58-inch body with a secure magnetic grip in TechRadar’s test.
• Up to 15W Qi2 wireless or 30W USB-C output when either is used alone.
• Enough usable energy for meaningful travel backup, supported by Macworld’s exact-model test.

Cons

• The 7.62 oz pack can make a phone feel heavy in hand.
• No built-in stand or charge display.
• Two-device charging cuts output to 12W wired and 5W wireless.

Anker specifications TechRadar review Macworld review

Is the Slim A1664 actually easier to carry?

Its thinness is most valuable when you want to keep using your phone while the bank is attached. The A1664 measures 0.58 inches thick, and TechRadar reviewer Cesci Angell found its magnetic hold secure and the attached phone comfortable to grip. She also found the pack heavier than expected, however, which matches the listed 7.62 oz weight. Thinness reduces bulk in the hand; it does not remove the heft of a 10,000mAh battery. Anker specifications TechRadar review

That makes the choice straightforward. Pick the Slim if a flatter charging layer and strong magnetic attachment matter more than extra hardware. Pick a thicker stand/display-equipped magnetic bank if you regularly prop up your phone or want charge information visible on the pack. Macworld distinguishes this Slim model from that thicker design; the trade is portability versus those conveniences, not evidence that either format charges every device faster. Macworld review

How much of 10,000mAh reaches your phone?

Treat 10,000mAh as the bank’s cell rating, not the amount your phone will receive. Anker estimates about 5,500–6,500mAh delivered after conversion losses. That range is more useful for planning than the headline number, but it still cannot predict an exact number of recharges because phone batteries and charging conditions differ. Anker specifications

Macworld reviewer Simon Jary recorded cumulative charge equal to 188% of an iPhone 15 Pro battery across repeated drains with his A1664. That result shows the pack can provide substantial backup for that device, not that every compatible iPhone will get the same percentage. Protein Picks has not handled or measured this power bank. Macworld review

Charging one device is the better use case

Use one output at a time when speed matters. Anker rates the A1664 for up to 30W through USB-C alone or 15W through Qi2 alone. When both outputs run together, those ceilings fall to 12W wired and 5W wireless—less than half the solo wired ceiling and one-third of the solo wireless ceiling. In practice, dual output is better suited to keeping two devices going than quickly refilling either one. Actual speed still depends on the phone, cable, charger, temperature and charge level. Anker specifications

In Angell’s TechRadar test, an iPhone 13 Pro recharged in 1 hour 50 minutes. She reported that the A1664 became warm but not uncomfortably hot, again on her unit and device rather than under Protein Picks testing. TechRadar review

Who should skip it?

Skip the A1664 if a built-in stand or display is a priority, if you want the lowest possible carry weight, or if you frequently need to charge two devices at once. Also check that your phone and case support magnetic Qi2 alignment; otherwise the Slim model’s defining convenience is diminished. Anker specifications

Price and bottom line

Anker’s US store showed $79.86 for the black A1664, in stock, on October 1, 2026. This is a dated Anker direct-store price, not the live price at Amazon for ASIN B0D7DKJ75M; verify the merchant, variant and current price before ordering. Anker US store Amazon listing

The Slim earns its name on thickness, not weight. Buy it for a flatter magnetic 10K pack and strong single-device flexibility; choose another format when a stand, display, lighter load or fast two-device charging matters more.