This User Manual covers setup, features, compatibility, and specifications for the Satechi OntheGo™ Qi2 2-in-1 Wireless Charger (ST-QTG21K / ST-QTG21W / ST-QTG21R).
What's In The Box
OntheGo™ Qi2 2-in-1 Wireless Charger, USB-C cable, User Manual.
Product Overview
The OntheGo™ Qi2 2-in-1 Wireless Charger charges an iPhone and an Apple Watch at the same time from one USB-C input, then folds in half and closes on its own magnets so it travels flat in a pocket. Opened up it becomes an adjustable stand: landscape, StandBy, or flat for the phone, flat or Nightstand for the watch. The Qi2 pad delivers up to 15W to a compatible iPhone, and the magnetic puck fast charges an Apple Watch Series 7 or newer at up to 5W.
Setup
Note: A power adapter is not included. You need a USB-C power adapter rated at 30W or higher, ideally a single-port adapter.
- Unfold the charger: Open it to expose the Qi2 iPhone pad and the magnetic Apple Watch module.
- Connect the USB-C cable: Plug the included cable into the USB-C port on the charger.
- Connect the power adapter: Plug the other end into a USB-C power adapter rated at 30W or higher, then into a wall outlet.
- Place your iPhone on the Qi2 pad: A magnetic click confirms alignment.
- Place your Apple Watch on the module: Rest the back of the watch against the magnetic puck. Flip the puck up for Nightstand mode.
Functions
Parts labeled diagram of the OntheGo™ Qi2 2-in-1 Wireless Charger with 3 labeled components.
1. Qi2 Magnetic Wireless Charger (15W Max): The main charging pad. Delivers up to 15W of Qi2 wireless charging to compatible iPhones. Built-in magnets align the phone automatically. This surface also charges any Qi-compatible earbuds case.
2. Foldable Apple Watch Charger (5W) (Fast-Charging): The magnetic Apple Watch puck. Folds flat for travel and flips up for Nightstand mode. Fast charging up to 5W is available on Apple Watch Series 7 and newer. Apple Watch SE models are not supported for fast charging, but still charge at the standard rate. Certified under Apple's Made for iPhone (MFi) accessory program.
3. USB-C Port: Power input. Connect the included USB-C cable here, then plug the other end into a USB-C power adapter rated at 30W or higher. A power adapter is not included.
Features
- Charges an iPhone and an Apple Watch at the same time
- Up to 15W of Qi2 wireless charging for the phone, up to 5W fast charging for the watch
- Folds in half for travel, held closed by internal magnets
- Folds open into an adjustable hands-free stand: landscape, StandBy, or flat for iPhone, flat or Nightstand for Apple Watch
- Qi pad also charges Qi-compatible earbuds cases
- Foreign Object Detection stops charging if something unexpected is on the pad
Important Limitations
A power adapter is not included, and 30W is the minimum: The charger ships with a USB-C to USB-C cable but no power adapter. You need to supply a USB-C power adapter rated at 30W or higher. A single-port adapter is recommended. A lower wattage adapter will charge more slowly or not at all.
Do not power the charger from a laptop USB-C port: Laptop ports are not designed to deliver the steady power this charger needs. Use a dedicated 30W or higher USB-C power adapter.
Charging only one device does not make it faster: Each side has a fixed speed. The iPhone pad delivers up to 15W and the Apple Watch module up to 5W, whether one device or both are charging.
15W requires a Qi2 or MagSafe compatible phone: iPhone 13 and later with built-in MagSafe or Qi2 magnets attach directly. Other Qi-enabled devices need a magnetic case or magnetic adapter ring to align with the coil and hold on. Without magnetic alignment, charging is slower or will not start.
Apple Watch fast charging is limited to Series 7 and newer: All Apple Watch series charge on the module, but 5W fast charging is only available on Series 7 and newer. It is not supported on Apple Watch SE models.
Charging stops if a foreign object is detected: The charger will not charge if it detects an unexpected object on the Qi2 pad. Remove any metal objects, cards, or debris from the surface.
Keep magnetic-sensitive items away from the charging surface: Do not place credit cards, hotel keys, or key fobs on or near the pad.
Keep away from water or other liquids: Do not use the charger with damaged cables or adapters, and keep liquids away from it.
Specifications
Models: ST-QTG21K (Black), ST-QTG21W (White), ST-QTG21R (Rose Gold)
Qi2 Wireless Output: Up to 15W
Apple Watch Output: Up to 5W fast charging, Series 7 and newer
Power Input: USB-C, 30W minimum, power adapter not included
Included Cable: USB-C to USB-C, about 1 m (3.3 ft)
Design: Foldable, magnetically held closed
Certifications
FCC, IC, CE, WEEE, ETL, MFi
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