140W USB-C Smart Charger – Auto Disconnect Battery Guard Adapter
140W USB-C Smart Charger – Auto Disconnect Battery Guard Adapter
140W Smart USB-C Charger with Automatic Physical Disconnect & Battery Guard
Keep your devices charged safely and intelligently with this 140W Smart USB-C Quick Charge Adapter. Featuring an automatic physical-disconnect mechanism, the charger cuts power the moment your battery reaches full capacity — eliminating the risk of overcharging and helping to extend battery lifespan. Whether you're charging a laptop, tablet, or smartphone, this adapter delivers fast, reliable power with built-in smart protection.
Key Features
- Auto Physical Disconnect: Physically cuts off the charge circuit when the battery is full — no more trickle overcharge, no wasted energy.
- 140W Maximum Input / 120W Maximum Output: Blazing-fast charging for laptops, tablets, and high-power USB-C devices.
- Qualcomm Quick Charge Compatible: Supports Qualcomm Quick Charge fast-charge protocols for compatible smartphones and devices.
- Battery Guard Technology: Intelligent smart-stop charge system actively monitors charging status to protect battery health over time.
- Universal USB Type-C Port: Works with the latest USB-C laptops, MacBooks, iPads, Android phones, and more.
- Certified Safe: RoHS, CE, and FCC certified for quality and electrical safety compliance.
- AC Power Source: Plugs into any standard AC wall outlet — no batteries required.
- No Charging Cable Included: Compatible with your existing USB-C cables (cable sold separately).
Specifications
| Max Input Power | 140W |
| Max Output Power | 120W |
| Output Interface | USB Type-C |
| Fast Charge Protocol | Qualcomm Quick Charge |
| Smart / Intelligent Charge | Yes |
| Display Screen | No |
| GaN Technology | No |
| Power Source | AC Mains |
| Certifications | RoHS, CE, FCC |
| Cable Included | No |
| Country of Origin | Made in Mainland China |
Why Choose a Smart Auto-Disconnect Charger?
Standard chargers continue to supply a trickle current even after your device hits 100%, which can degrade battery cells over time. This adapter's physical-disconnect battery guard goes a step further than software-based solutions — it mechanically interrupts the power circuit, ensuring zero overcharge current reaches your device. It's the smart, energy-efficient way to charge every time.
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Frequently Asked Questions
Q: What does the automatic physical-disconnect feature actually do?
A: Once your device's battery reaches 100%, the charger's internal mechanism physically breaks the charge circuit — meaning no electrical current continues to flow to your device. This is different from software-based charge limits and provides a hardware-level safeguard against overcharging, helping preserve long-term battery health.
Q: Is a USB-C cable included with this 140W smart charger?
A: No, a USB-C cable is not included. You will need to use your own USB-C cable. For best performance at high wattages, use a high-quality USB-C cable rated for at least 100W (5A / 20V).
Q: Which devices are compatible with this USB-C smart charger?
A: This adapter is compatible with any device that charges via USB-C, including USB-C laptops (e.g. MacBook, Dell XPS, Lenovo ThinkPad), iPads, Android smartphones, tablets, and other USB-C accessories. Qualcomm Quick Charge is supported for compatible Android devices.
Q: Is this charger certified for safety?
A: Yes. This charger is RoHS, CE, and FCC certified, meeting recognized electrical safety and environmental compliance standards.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.