Wuben X4 Mini: iPhone charges the flashlight — it doesn’t work as an emergency power bank

Many readers wondered if the compact Wuben X4 Mini flashlight could double as an emergency power bank for an iPhone — after all, it uses a removable 18650 cell and charges over USB‑C. In practice, the X4 Mini behaves differently: its USB‑C port is for charging the lamp (power in), not for providing power out to charge phones.

That means plugging your iPhone into the X4 Mini won’t top up your phone. In fact, the connection can go the other way in some cases — the phone may supply power to the lamp. A red status LED and the lamp’s behavior indicate power flow, so don’t assume the flashlight will rescue a drained phone unless the manufacturer explicitly lists power‑out (PD or USB‑OTG) capability.

Key facts

• Wuben X4 Mini is USB‑C rechargeable and uses a removable 18650 battery.
• Its USB‑C port is primarily designed for charging the flashlight (power in), not for powering other devices.
• Some users reported that connecting a phone can charge the lamp rather than the phone charging from the lamp.

What to do if you need emergency phone power

• Check the product specs or manual for explicit “power‑out” or USB‑PD/OTG support before relying on a flashlight as a power bank.
• Carry a dedicated power bank with USB‑PD output if you want reliable phone charging in the field.
• If you already own the X4 Mini, test it at home: try charging another device and observe LED indicators to confirm power direction.
• Keep spare charged batteries and a USB‑C cable handy for the fastest recovery options.

For purchase options and specs, search for the Wuben X4 Mini: Wuben X4 Mini on Amazon, or visit the maker’s site for official documentation.

Discussion: Do you expect multi‑tool gadgets like flashlights to double as power banks — or do you prefer carrying separate devices for lighting and charging?