EOENKK 140W Type-C Smart Auto-Stop Battery Guard Adapter
EOENKK 140W Type-C Smart Auto-Stop Battery Guard — Charge Smarter, Not Longer
Stop worrying about leaving your devices plugged in overnight. The EOENKK 140W Type-C Battery Guard Adapter automatically disconnects power once your device reaches a full charge, helping to preserve your battery's long-term health and keeping your devices safe while you sleep. Made in Mainland China.
Why You'll Love It
- ⚡ Ultra-Fast 140W Charging: Supports up to 140W fast charging for smartphones, laptops, tablets, and other USB-C devices — dramatically cutting down time spent tethered to the wall.
- 🛡️ Smart Auto-Disconnect Technology: Intelligent battery detection monitors your device's charge level. When it hits 100%, the adapter automatically cuts power within 10–50 minutes, helping extend battery longevity and enabling worry-free overnight charging.
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🤖 Two Selectable Function Modes (Type-C):
- White Light Mode: Optimized for screen-on devices like smartphones and tablets.
- Blue Light Mode: Designed for non-screen devices such as Bluetooth headsets, power banks, electric shavers, and some laptops.
- Lightning Mode: Single-mode operation for Lightning-connected devices.
- 🧲 Port-Friendly Silicone Cushion Design: Soft silicone surrounds the charging interface so plugging and unplugging won't scratch or wear down your device's charging port.
- 📦 Ultra-Compact & Travel-Ready: Measuring just 4.2 × 3.3 × 2 cm and weighing only 25.5 g, this adapter slips into any pocket, bag, or carry-on with ease.
- 🔗 Wide Compatibility: Works with virtually all USB-C devices — iPhone, iPad, MacBook, Android smartphones, Samsung devices, and more. Also includes Lightning support.
Technical Specifications
| Type-C DC Range | 5V–28V, 0A–5A (up to 140W) |
| Lightning DC Range | 5V–28V, 0A–5A |
| Housing Material | Fire-Resistant PC |
| Dimensions | 4.2 × 3.3 × 2 cm |
| Weight | 25.5 g |
| Country of Origin | Made in Mainland China |
Stay Informed: Battery Health & Safe Charging
For more information on best practices for lithium battery safety and device care, visit the U.S. Consumer Product Safety Commission – Lithium-Ion Battery Safety.
Learn more: AC adapter
Frequently Asked Questions
Q: How does the EOENKK Battery Guard auto-stop feature work?
A: The adapter uses intelligent battery detection circuitry to monitor current draw. When your device reaches a full charge, power consumption drops close to zero. The adapter recognizes this and physically disconnects power within 10–50 minutes, preventing continuous trickle charging and helping to maintain long-term battery health.
Q: Which devices are compatible with the 140W Type-C Battery Guard?
A: It is compatible with virtually all USB-C enabled devices, including iPhones, iPads, MacBooks, Android smartphones, Samsung Galaxy series, tablets, Bluetooth headsets, power banks, and laptops that support USB-C charging. A Lightning output option is also available for older Apple devices.
Q: What is the difference between White Light Mode and Blue Light Mode?
A: White Light Mode is best suited for screen-equipped devices (like phones and tablets) that remain powered on during charging. Blue Light Mode is optimized for screenless or background-charging devices like Bluetooth earbuds, power banks, electric shavers, and certain laptops. Toggle between modes with a single press of the button.
Q: Is the 140W Battery Guard safe to use overnight?
A: Yes. Its core purpose is to enable safe overnight charging. The physical auto-disconnect feature ensures the charger is no longer delivering current once your battery is full, reducing heat buildup and the risk of prolonged overcharging that can degrade battery capacity over time.