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When we started working on the Baseus PicoGo AM72, we looked at how people use a foldable phone. The iPhone Duo offers less space for the back when folded, so the size and position of a magnetic power bank are something we had to consider carefully.
We wanted the AM72 to fit right against the phone but still allow for easy charging. That meant a 5,000 mAh battery and fast wireless charging tech in a slim body.
Let’s take a deeper look at how we designed the AM72, inside and out.
How We Designed AM72 Around the Fold
A Close Fit That Leaves Room for the Camera
One of our first considerations was ensuring the AM72 will fit comfortably behind the iPhone Duo. A normal magnetic power bank might hang over the edges of a folded phone or interfere with the camera.
The AM72 has a body of 85.3 × 81 mm, which fits closely against the phone, without extending over the sides or blocking the camera. That means you can leave it there while taking pictures or swapping between the folded and unfolded screens.
A Slim Body That Feels Comfortable to Hold
When adding an accessory to a foldable phone, thickness is an important consideration. To keep the extra bulk down, especially when the phone is folded, we made the AM72 only 7.9 mm thick. It fits tight against the back of the phone, which makes it easier to hold your phone with one hand.
The AM72 features an aluminum alloy body with a titanium finish that complements the phone's appearance. Its compact size means you can easily take it with you in a pocket or bag.
Magnetic Attachment That Keeps Its Position
We wanted the AM72 to stay securely attached to your phone while you use it. Engineered with N54H rare-earth magnets, its magnetic system provides 12N of holding force to keep the power bank firmly in place, even while you're walking.
This magnetic connection also keeps the charging coils properly aligned for more efficient wireless charging. You can move around and use your phone without having to constantly adjust the power bank.
How We Built AM72 for Charging
Fast Charging in a 7.9 mm Body
Fitting a battery into such a thin body meant finding the best size and power ratio. To keep the AM72 small and offer additional power for daily use, we selected a 5,000 mAh battery.
The AM72 supports up to 15W Qi2 magnetic wireless charging and up to 25W USB-C wired charging. To begin wireless charging, simply connect it to a compatible phone. You can continue watching videos or using apps on the unfolded screen without needing to connect a cable.
Keeping Heat Under Control
Wireless charging generates heat as power is transferred between devices, especially at faster charging speeds. As the AM72 sits right against the back of the phone, we were careful to consider heat management as we designed it.
We designed the AM72 with a raised surface that leaves a small gap between the phone and power bank. It also features AI temperature control and Glacier Cooling Structure 2.0 to help manage heat during charging.
Wired Charging and Battery Information
If you prefer a cable, the AM72 also has a USB-C port for wired charging. It supports up to 18W input for recharging the power bank itself.
The AM72 also features PowerSense NFC. Simply tap the NFC area with your iPhone, and the Baseus App will instantly display battery health and key cell-status information.
AM72 at a Glance
| Feature | Specification |
|---|---|
| Product | Baseus PicoGo AM72 |
| Battery capacity | 5,000 mAh |
| Thickness | 7.9 mm |
| Dimensions | 85.3 × 81 × 7.9 mm |
| Charging technology | Qi2 magnetic wireless charging and USB-C wired charging |
| Wired charging output | 25W |
| Wireless charging output | Up to 15W (Qi2) |
| USB-C input | Up to 18W |
| Magnetic force | 12N |
| Material | Aluminum alloy body |
Made for the Duo, Built as One
We wanted to make charging effortless with the PicoGo AM72. Keep the AM72 attached to the back of your phone as you take photos or enjoy the larger screen, with extra power always at your fingertips.
No matter where you go, the AM72 keeps your iPhone Duo charged, whether you're checking the folded screen or watching a movie on the larger display.
FAQ
1. Will the AM72 always charge at 25W?
No. Your phone's charging speed is determined by the battery level, temperature, and charging conditions. Although it can deliver up to 25W, the AM72's charging speed may vary.
2. Can I use the AM72 in hot weather?
Yes, as long as temperatures stay within the recommended operating range. The iPhone 18 Duo may also get warmer during use, especially when running demanding apps. Avoid charging in direct sunlight or leaving the AM72 in a hot car, as excessive heat can affect charging performance.
3. Does the AM72 work with a phone's battery percentage limit?
Yes. If you have a charging limit enabled on your phone, the phone will manage charging in accordance with that setting, even when you are using the AM72.
4. Does the AM72 need to be fully charged before first use?
No. You can use the AM72 straight out of the box if it has enough battery power. However, charging it fully before first use will give you the most available power.
