Talk · Troubleshooting · Wireless & magnetic faults

Why does a foldable 3-in-1 charger stop charging one device?

Often it's placement, a case, a weak adapter, or power sharing. If one pad never works or cuts out when the panel moves, the hinge wiring or that pad's coil may be faulty.

Wecent Editorial Team Updated 22 Oct 2026 2 min read

The question

Customers say their foldable 3-in-1 charges the phone and earbuds but not the watch, or the reverse. What should we check?

Main answer · Wecent Editorial Team

Short answer: Start with the simple causes: the device isn’t centred on its pad, a case or band is in the way, the panel isn’t fully unfolded, or the adapter is too weak to power all three. For the watch, check model compatibility. If one pad never works with a compatible device, or charging stops when the panel is moved, the coil or hinge wiring for that pad may be faulty; report it with the model and batch code.

Placement and position

Each pad has its own coil. The device must sit centred on it. On foldable models, the panel must be in a supported position, often fully unfolded. A partly folded panel may not power its pad.

Cases and accessories

Thick phone cases, earbud case covers and watch cases block charging. Remove them and retry.

Adapter power

A 3-in-1 needs enough input power to run all three pads. With a weak adapter, the charger may disable one output or charge it slowly. Use the adapter recommended in the manual.

Watch compatibility

Watch modules support specific watch models. A newer watch may not charge on an older module. Check the compatibility list.

Device features

Optimised charging can pause the watch or earbuds when full or at 80%. That looks like “not charging” but is normal.

Hinge and coil faults

On foldable designs, wires to the coils pass through hinges. Repeated folding or forcing the panel can damage them. Signs:

One pad never charges any compatible device.
Charging cuts out when the panel moves.
The pad works only at certain angles.

These point to a hardware fault. Stop using the faulty pad and contact the seller.

Test steps

Unfold fully and place on a flat surface.
Use the recommended adapter.
Remove cases; place each device carefully.
Test the problem pad with another compatible device.
Move the panel gently while charging; does it cut out?

Earbuds

Earbud cases must have wireless charging to work on the earbud pad, and the charging side must face down. Some cases charge only when the lid is closed. Check the earbud maker’s guidance.

Support script

Ask for the device models, adapter, and a short video of the test. Replace units with confirmed pad faults and record the batch.

Where this answer says confirm with Wecent, the detail is not published on the product page and has to come from the datasheet or the factory. General facts come from the standards bodies, regulators or device makers named in the text.

Three more perspectives

Wecent Editorial Team · After-sales perspective

Most single-pad issues are adapters and cases. Hinge faults are less common but need replacement.

Wecent Editorial Team · Compliance/QC perspective

Include a fold-and-charge test on all pads in inspection.

Wecent Editorial Team · Use perspective

Unfolding fully before placing devices avoids most position-related issues.