Integrating magnetic wireless charging and an attachable cooling fan into the ultra‑thin OnePlus 15T

The upcoming OnePlus 15T promises a 1 cm‑thin frame while packing a massive battery, high‑speed charging, and a novel magnetic cooling accessory. This creates a design puzzle: how to keep the phone slim, safe, and performant when adding power‑dense components.

Technical Solution

Addressing the challenge requires a layered approach that separates power delivery, magnetic alignment, and heat extraction without inflating the chassis. The plan hinges on a proprietary magnetic coil array, a low‑profile fan module, and a tightly integrated power‑management IC.

Magnetic wireless charging architecture

Embedding a dual‑coil resonant system beneath the display lets the device snap to any Qi‑compatible pad, while a secondary magnetically locked coil aligns with Apple’s MagSafe ring, enabling cross‑ecosystem charging. The coils are fabricated on a flexible substrate that conforms to the sub‑6 mm back glass, preserving the sleek silhouette.

Detachable cooling fan mechanics

The external fan uses a 1 cm‑thin, high‑speed graphite blade that clicks onto a magnetic rail integrated into the phone’s frame. When attached, a dedicated thermal sensor triggers the fan at 2 kRPM, moving heat away from the Snapdragon 8 Elite Gen 5 SoC during intensive workloads.

Power‑management and battery integration

A custom Power Delivery controller balances 100 W wired input with 30 W magnetic wireless input, routing excess energy to a 7,500 mAh graphene‑enhanced cell. The controller also communicates with the fan module to throttle performance if thermal limits approach 45 °C.

Manufacturing considerations

All magnetic components are produced using a stamp‑and‑laser process that aligns tolerances to ±0.1 mm, ensuring a secure snap‑fit while keeping material costs low. For further reading on magnetic accessories, see our Pixel‑9 quick‑share analysis and the Google I/O 2026 trends.