Battery Charger with Auto Cut-Off

Automatic Power-Off and Disconnection Battery Charger Disconnect Switch with Auto Cut Off

This full-charge disconnector is a smart accessory designed to provide physical power-off protection for devices. Essentially, it is a small device that detects when a device is fully charged and actively ‘pushes’ it away from the charging port. Made from flame-retardant PC material, it is compact and lightweight (25g), supports input voltages of 5V–28V and output currents of 0–5A, and is compatible with the PD fast-charging protocol. Once the device is detected as fully charged, an internal motor-driven pusher automatically ejects the disconnector from the device’s USB-C port, physically disconnecting the charging end from the device. With two modes to choose from, it is suitable for mobile phones and tablets (blue light mode) as well as screenless devices such as Bluetooth headphones (green light mode). Whether charging at night or leaving your device on charge overnight, this physical disconnection provides an extra layer of peace of mind.

Advantages

1. Physical disconnection for complete charging interruption: This is not a software-based ‘smart disconnection’ but rather a mechanism where an internal micro-motor drives a push rod to physically eject the separator from the device’s USB-C port, achieving true physical isolation. Compared to software-based overcharge protection, physical disconnection offers a more thorough and reliable solution.
2. Intelligent detection, disconnects upon full charge: The built-in control circuit monitors the charging current in real time. Once it determines that the device has reached full charge and the current has dropped to a preset value, it immediately triggers the physical disconnection mechanism. There is no need to unplug the cable manually, so you need not worry even if leaving it to charge overnight.
3. Two modes to suit different devices: Blue light mode is suitable for devices with screens that remain in standby mode, such as mobile phones and tablets; Green Light Mode is suitable for screenless products such as Bluetooth headphones, small fans and electric shavers. Switch between modes at the touch of a button to suit your needs.
4. Wide-voltage compatibility, 140W fast charging support: Input voltage 5V–28V, output current 0–5A, supporting up to 140W fast charging and compatible with the PD 3.0 fast charging protocol. Suitable for mobile phones, tablets and laptops.
5. Fire-retardant PC material, compact and portable: Made from fire-retardant PC material, it measures just 67 × 44 × 21 mm and weighs 25 g – lighter than a car key – so it takes up no space when carried.
6. Low temperature of 25°C, safe charging without burning your hands: Thanks to a patented temperature control design, the surface temperature during charging remains as low as approximately 25°C, making it safer than traditional chargers.

Suitable scenarios

1. Overnight charging: Plug in your mobile before bed; once fully charged, it disconnects automatically, so there’s no need to wake up in the middle of the night to unplug it
2. Charging Bluetooth headphones/small devices: Small devices without screens do not automatically cut off power once fully charged; the splitter automatically ejects to prevent overcharging and battery damage
3. Office/desktop charging: When in a meeting or away from your desk, it disconnects automatically once fully charged—safe and hassle-free
4. Business travel: Compact and portable, allowing you to sleep soundly whilst your device charges overnight in a hotel
5. Customised gifts: A high-tech, smart gadget ideal as a corporate gift or branded giveaway

Product dimensions 
The product details are as follows

Customer Service

We offer comprehensive, fully customisable options! Whether it’s a company logo, brand emblem or event theme, anything can be printed onto the device. From product colours and printed designs to bespoke gift boxes and instruction manuals, we provide a one-stop customisation solution. As a high-tech smart accessory, the Full-Charge Separator, when customised, serves not only as a practical digital tool but also as a high-quality ambassador for your brand image.

FAQ

Q1: How does the Full-Charge Disconnector work?

A1: It determines the device’s status by monitoring the charging current. When the device is fully charged and the current drops to a preset value, an internal micro-motor drives two push rods via a gear mechanism, physically ejecting the disconnector from the device’s USB-C port and completely severing the charging circuit. The entire action is powered by a built-in supercapacitor, enabling the ejection even after the external power source has been removed.

Q2: Which devices is it suitable for?

A2: It is suitable for all devices with a Type-C port, including mobile phones, tablets, laptops, Bluetooth headphones, small fans, electric shavers, beauty devices and more.

Q3: What is the difference between the two modes? How do you switch between them?

A3: Switch between modes with a single press of the button on the device. Blue light mode is suitable for devices with screens, such as mobile phones and tablets (higher current detection threshold); green light mode is suitable for devices without screens, such as Bluetooth headphones and small fans (lower current detection threshold).

Q4: Will it damage the mobile phone’s charging port?

A4: No. The separator uses an internal pusher rod to eject itself from the port; the ejection force is designed not to cause damage to the device’s port. Please ensure there is sufficient space around the device during use to allow for ejection, and avoid it being pressed down by duvets or heavy objects, which could interfere with the mechanism.

Q5: How long does it take for the device to eject once fully charged?

A5: After the device displays 100% battery charge, you must still wait for the current to drop to the preset value before ejection is triggered; the actual time varies depending on the device and battery condition.

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