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140W Fast Charging Smart Power-Off Protector | Automatic Disconnect When Fully Charged | Dual Current Recognition Mode | Compatible with Phones, Laptops, Power Banks, and Mini Fans | Works with Apple and Android Devices
Automatically disconnects when fully charged to prevent overcharging! The Kuwajia Full-Charge Disconnector supports 140W full-speed fast charging. With dual modes (white light/blue light), it intelligently identifies different devices. Physical power cutoff combined with AI current detection ensures safer overnight charging. Compatible with Apple, Android, laptops, electric shavers, toys, and more.
✨ Key Product Features
⚡ 140W Full-Speed Fast Charging
The charger supports up to 140W output and is backward compatible with 100W PD cables, ensuring laptops, tablets, and phones charge at full speed without throttling.
🔋 Automatic Disconnection When Fully Charged | Visible Physical Power Cut-off
Upon detecting a full battery, an internal relay physically disconnects the circuit, resulting in 0 standby power consumption and eliminating the risk of overcharging at the source.
💡 Dual Current Recognition Modes
White Light Mode: Screen-equipped devices in standby mode, such as phones, tablets, and laptops
Blue Light Mode: Power banks, small fans, electric shavers, beauty devices, and children’s toys
→ One-touch switching ensures precise charging logic tailored to different devices.
🌙 Overnight Charging Without Overcharging | All-Night Protection
Plug it in before bed; it automatically disconnects once fully charged, preventing repeated recharging. This extends battery life, ensuring 100% charge and safety when you wake up in the morning.
🤖 AI Smart Recognition + Protected by Invention Patents
Features a built-in dynamic current algorithm—not just a simple timer—to accurately detect when the battery is fully charged. Awarded national invention and utility model patents.
🔌 Compatible with All Devices | Works with Apple and Android
Supports various Type-C devices including iPhone, iPad, MacBook, Huawei/Xiaomi/Samsung phones, power banks, Bluetooth earbuds, electric toothbrushes, and more.
🧩 Modular Design | Separate Components for Easy Storage
Features a modular structure that allows the control module to be removed separately, making it more convenient for travel.
📖 Product Details (Image & Text Section)
🚨 Have you ever faced these issues?
Does your phone’s battery health plummet even after charging all night?
Did you forget to unplug your power bank, causing it to overheat or even swell?
Do your electric shavers and small fans always get overcharged, breaking down after just a year?
Does your laptop stay hot the next day after charging overnight?
The Full-Charge Disconnector was created to solve these problems. Unlike ordinary charging cables that simply keep power flowing, it acts like a smart gatekeeper—once the battery is full, it immediately disconnects physically, ensuring zero current leakage.
💎 Core Technology: Dual Current Recognition Mode (White Light/Blue Light)
Different devices have completely different “full-charge definitions”:
Mode Indicator Light Applicable Devices Disconnection Logic
White Light Mode White light on Smartphones, tablets, laptops (with screens) Detects current dropping to a minimal value (approx. 50–150 mA) and remaining stable, indicating full charge → Disconnects within 0.5 seconds
Blue Light Mode Blue light on Power banks, fans, electric shavers, toys (screenless DC motor devices) Detects the end of the constant-voltage phase in the charging curve and the appearance of a current inflection point → Delayed disconnection to prevent false positives
👉 One-touch switching: Press and hold the button for 2 seconds to switch between White and Blue modes; the indicator light color indicates the current mode.
⚡ Full-speed 140W fast charging | No speed reduction for greater freedom
Many power protectors only support 60W or 100W, causing laptops to throttle when plugged in.
The KuwaJia splitter features an enhanced circuit design capable of handling up to 140W (28V/5A), making it a perfect match for high-power devices like the 16-inch MacBook Pro and gaming laptops.
Even if you’re using a 100W cable, the splitter won’t become a bottleneck—it automatically negotiates to the cable’s maximum capacity.
🌙 Nighttime Charging Guardian: Physical Disconnection, Not “Soft Shutdown”
Ordinary smart charging plugs use MOSFETs to disconnect, which still results in milliamp-level leakage current.
Kuwajia employs a micro-relay for a physical disconnection. After disconnection, the positive and negative terminals are completely isolated, and a multimeter detects no voltage whatsoever, truly achieving “0 power consumption, 0 leakage current.”
Test Data:
Standby Power Consumption: < 0.05W
Power Consumption After Disconnecting (Fully Charged): 0W
Response Time: ≤0.3 seconds
Utility Model Patent (Dual Protection: Structural and Circuit)
CE / FCC / RoHS Certified
Flame-retardant PC Housing + Gold-Plated Terminals, withstands over 10,000 insertion/removal cycles
📐 Technical Specifications
Item Parameter
Input Interface USB-C Male
Output Interface USB-C Female
Max Power 140W (28V/5A)
Supported Protocols PD 3.1 / QC 5 / PPS / AFC / SCP
Disconnection Detection Accuracy ±5mA current sampling
Operating Temperature -10°C ~ 40°C
Dimensions Approx. 65×25×12mm
Weight 18g
📦 Package Contents
Full-Charge Disconnector ×1
User Manual (includes mode switching guide) ×1
Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
US$40
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