USB-C Auto Battery Cutoff Adapter | Overcharge Protection

Stop Overcharging Before It Starts

The Automatic Battery Cutoff Disconnect Adapter is the smart, simple way to protect your USB-C devices from the wear and tear of overnight or unattended charging. When your device hits 100%, this compact adapter physically ejects the connector — completely cutting power — so your battery stays healthier for longer and your mind stays at ease.

Key Features

• Overnight Protection: Automatically disconnects power the moment your device reaches full capacity. No more waking up to an overcharged phone on the bedside table.
• Physical Auto-Eject Mechanism: Uses a precision dual-lever system to physically push the USB-C connector away from the port — delivering true, 100% disconnection, not just a software signal.
• Fireproof PC Material: Constructed from premium flame-resistant polycarbonate for added safety and durability during every charge cycle.
• Ultra-Compact & Travel-Ready: Measures just 4.2 × 3.5 × 2 cm (1.65" × 1.38" × 0.79") — small enough to slip into any travel bag, laptop case, or pocket.
• High-Power 140W Compatibility: Supports rapid charging up to 140W for smartphones, tablets, and laptops. The integrated 5A copper core delivers stable, efficient energy flow without overheating your electronics.
• Voltage Spike Defense: Guards your devices against unexpected voltage fluctuations while you drive, work, or relax.

Specifications

• Connector Type: USB-C (Type-C)
• Max Charging Power: 140W
• Cable Rating: 5A copper core
• Dimensions: 4.2 × 3.5 × 2 cm / 1.65" × 1.38" × 0.79"
• Material: Fireproof polycarbonate (PC)
• Compatible Devices: USB-C smartphones, tablets, laptops
• Country of Origin: Made in China

What's in the Box?

• 1× Automatic Battery Cutoff Disconnect Adapter

Great For

• Overnight charging on bedside tables
• Office desk charging stations
• Business travel and daily commutes
• Protecting laptops and tablets from long charging sessions

For more information on battery safety and best practices for electronic device charging, visit the U.S. Consumer Product Safety Commission – Battery Safety.

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Frequently Asked Questions

Q: How does the automatic battery cutoff adapter work for USB-C devices?

A: The adapter monitors your device's charging status and, once it reaches full capacity (100%), a built-in dual-lever mechanical system physically pushes the USB-C connector out of the port. This ensures a true, complete disconnection from the power source — not just a software-level charge pause.

Q: Is this USB-C cutoff adapter compatible with laptops and tablets?

A: Yes! The adapter supports charging speeds up to 140W with a 5A copper core, making it compatible with a wide range of USB-C devices including smartphones, tablets, and laptops.

Q: Is the auto-disconnect adapter safe to use overnight?

A: Absolutely. It is specifically designed for overnight and unattended charging scenarios. The fireproof polycarbonate housing and physical auto-eject mechanism work together to prevent overcharging and reduce the risk of heat buildup, giving you peace of mind while you sleep.

Q: Can I use this adapter while traveling?

A: Yes. Its ultra-compact size (4.2 × 3.5 × 2 cm) makes it ideal for travel bags, carry-ons, and commuter kits. It works seamlessly with car chargers, office USB-C ports, and standard wall adapters.