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📥 Download User Manual — OntheGo™ 2-in-1 Wireless Charger · PDF · 2.4 MB

This User Manual covers setup, charging modes, and troubleshooting for the Satechi OntheGo™ Qi2 2-in-1 Wireless Charger (ST-QTG21K / ST-QTG21W / ST-QTG21R). The OntheGo™ Qi2 2-in-1 Wireless Charger is a foldable travel charger featuring a Qi2 wireless charging pad for iPhone and a magnetic Apple Watch charging module.

What's in the Box

• OntheGo™ Qi2 2-in-1 Wireless Charger (ST-QTG21K, ST-QTG21W, or ST-QTG21R)
• USB-C cable
• User Manual

Setup

1. Unfold the OntheGo™ 2-in-1 Charger to access the Qi2 iPhone charging pad and the Apple Watch magnetic charging module.
2. Connect the included USB-C cable to the USB-C input port on the charger.
3. Connect the other end to a USB-C power adapter (not included) with a minimum output of 25W for optimal Qi2 15W charging.
4. Place your iPhone face-up on the Qi2 charging pad. A magnetic click confirms correct alignment.
5. Drape your Apple Watch band over the magnetic Apple Watch charging module to begin charging.

Charging Your Devices

• iPhone (Qi2 pad) — Up to 15W wireless charging with MagSafe-compatible iPhones (iPhone 12 and later). Requires a 25W+ USB-C power adapter for full 15W speed.
• Apple Watch (magnetic module) — Compatible with all Apple Watch models that support magnetic charging.

Folding and Travel

When not in use, fold the OntheGo™ 2-in-1 Charger flat for compact storage. It is designed to fit in pockets, pouches, and travel bags. The USB-C cable can be stowed alongside the folded charger.

Troubleshooting

• iPhone not charging wirelessly — Ensure iPhone is centered on the Qi2 pad. Remove thick cases that may block wireless charging. Verify the power adapter provides at least 5W.
• Apple Watch not charging — Confirm the Watch is aligned with the magnetic module and the back of the Watch contacts the charger surface.
• Charging speed is lower than 15W — Qi2 15W requires a 25W or higher USB-C power adapter. Lower-wattage adapters will charge at reduced speeds.

Safety Notes

• Do not place credit cards, key fobs, or other magnetic-sensitive items near the charging surface.
• Keep liquids away from the charger.
• Do not use with damaged cables or adapters.

Specifications

• Models: ST-QTG21K (Black), ST-QTG21W (White), ST-QTG21R (Rose Gold)
• Qi2 Output: Up to 15W (requires 25W+ adapter)
• Apple Watch: Magnetic charging, all generations
• Input: USB-C, minimum 25W recommended
• Design: Foldable for travel