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Power Banks Made to Fit the iPhone Duo

Magnetic power banks shaped for the iPhone Duo, from the BMX SolidSafe Duo and thin Baseus AM72 to Momax's upcoming S.Pass² Slate.

4 min readNov 09, 2026By Eric Denby

Quick Take

  • The BMX SolidSafe Duo is the pick if you want a rotating stand, battery display, and attached USB-C cable.
  • The Baseus PicoGo Air AM72 prioritizes a thinner profile. Check Amazon for availability; Baseus's own store lists it as sold out as of November 9, 2026.
  • Momax's upcoming S.Pass² Slate comes in 5,000mAh and 10,000mAh versions; both remain listed for preorder.
  • These packs prioritize the Duo's shape and top out at 15W wirelessly, not the phone's full 25W capability.
BMX SolidSafe Duo and Baseus PicoGo Air AM72 magnetic batteries fitted to iPhone Duo phones

The iPhone Duo needs a different shape of magnetic power bank. A pack can support wireless charging perfectly well and still be too long for the phone, crowd the cameras, or stick out below the bottom edge.

These packs are built around the Duo's shorter, wider back. Start with the BMX SolidSafe Duo if you will use its stand. The Baseus PicoGo Air AM72 is the slimmer alternative if you would rather keep the back of the phone simple. Momax also has a Duo-sized option on the way, covered below.

Best with a stand: BMX SolidSafe Duo 5K

Black BMX SolidSafe Duo attached to iPhone Duo with its ring stand open
BMX SolidSafe Duo 5K
Amazon · Check current price

The SolidSafe Duo measures 77 × 88 × 11mm and weighs 126.7g. Its compact footprint is designed to stay within the Duo's edges, rather than carrying over the tall shape of a conventional iPhone battery pack.

The useful extra is a 360-degree rotating ring stand. It supports portrait or landscape viewing, so the battery also gives the phone somewhere to sit for a video or call. A full-color display shows remaining power and live charging wattage, and the USB-C lanyard cable stays attached.

You get 5,000mAh, up to 15W magnetic wireless charging, and 20W wired output. Recharging the pack tops out at 15W. It is the more useful choice if you want the stand and cable, but its 11mm thickness adds noticeable bulk to a folded phone.

Best slim design: Baseus PicoGo Air AM72

Silver Baseus PicoGo Air AM72 fitted below the iPhone Duo cameras
Baseus PicoGo Air AM72 5K
Amazon · Check current price

The AM72 takes the opposite approach: a simple silver pack without the BMX's display or rotating stand. Its 85.3 × 81mm footprint is designed around the Duo's camera clearance, with a body measuring 7.9mm at its slimmest point.

That thin profile is the reason to choose it. There is also a raised contact platform that leaves a small gap between the pack and phone, so the minimum body thickness is not a measurement of the entire attached setup.

It has a 5,000mAh battery with 15W Qi2 wireless charging and up to 25W USB-C output. The 25W in the product name is the wired rating, not its wireless speed.

Baseus's own store lists the AM72 as sold out as of November 9, 2026. Amazon stock and delivery dates may differ, so check the listing before ordering for a trip.

Upcoming: Momax 1-Power S.Pass² Slate

Momax's S.Pass² Slate is another design made specifically for the Duo, with an 86 × 80mm footprint in two capacities. The 5,000mAh model is 9.8mm thick with up to 20W USB-C output. The 10,000mAh version grows to 16mm and supports up to 45W wired output. Both offer up to 15W magnetic wireless charging.

Silver Momax S.Pass² Slate 5,000mAh Duo-sized magnetic power bank
Momax S.Pass² Slate 5,000mAh — Silver
Momax · Preorder — shipping not confirmed
Thicker silver Momax S.Pass² Slate 10,000mAh Duo-sized magnetic power bank
Momax S.Pass² Slate 10,000mAh — Silver
Momax · Preorder — shipping not confirmed

The smaller one is the more natural everyday fit; the larger one trades thickness for extra capacity. As of November 9, 2026, Momax still lists these for preorder, with November shipping estimates rather than a confirmed delivery date. Treat them as upcoming options, not a ready-to-ship recommendation.

The iPhone Duo is 117.8mm tall and 84.1mm wide when closed. A magnetic pack needs to fit the usable area below the cameras, not merely be smaller than the phone overall. Magnet position matters as much as dimensions.

These designs account for that space. With a case, check that its camera surround and hinge protection leave room for the battery to sit flat. A built-in grip or stand can also get in the way. Manufacturer fit claims do not guarantee compatibility with every case.

The Duo supports up to 25W MagSafe and Qi2 charging, but these packs stop at 15W wirelessly. Choose them for the physical fit, not the fastest possible top-up. A capacity rating is not a guaranteed recharge count; wireless losses and phone use affect what reaches the battery.

For more on capacity, read why watt-hours matter more than mAh alone. If you would rather keep the battery in your bag and use a cable, our Anker travel charging guide covers that approach.