Battery Longevity
Prevents degradation and swelling by stopping trickle charging.
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Why customers love it
Safeguard your devices for maximum battery life
Introducing the intelligent USB-C guard designed to eliminate trickle charging and heat buildup, ensuring your expensive electronics charge safely and efficiently.
- Physically cuts power at 100% to prevent battery swelling.
- Supports high-speed protocols like PD3.1 and QC4+ for fast charging.
- Offers dual-mode LED intelligence for screen and non-screen devices.
- Provides multi-layer firewall protection against voltage spikes.
- Compact and portable design perfect for travel or home use.
Charge with Confidence
High-Speed Power
Handles 140W passthrough for rapid charging of modern devices.
Smart Visibility
Uses dual LED modes to clearly indicate charging status.
Universal Compatibility
Works seamlessly with major USB-C devices like iPhones and MacBooks.
Setup
Protecting your charge in 3 simple steps
Installation is quick and requires no technical expertise.
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Identify the device
Place your USB-C device into the guard, ensuring proper alignment for connection.
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Monitor the charge
The guard intelligently monitors the battery level and switches off power precisely at 100%.
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Enjoy safe charging
Benefit from fast, clean power delivery without the risk of overcharging.
Technical Details
Performance Specifications
Key technical details for performance assurance.
- Max Passthrough Power
- 140W
- Supported Protocols
- PD3.1 and QC4+
- Compatibility
- Universal USB-C Devices
- Safety Feature
- Multi-layer Firewall
More details
Protect your devices from overcharging and battery degradation with this intelligent USB-C inline guard. It physically disconnects power the moment your device reaches 100%, eliminating trickle charging and heat buildup to significantly extend battery lifespan.
- Physical Auto-Disconnect: Cuts power completely at full charge to prevent battery swelling and degradation
- 140W High-Speed Passthrough: Supports PD3.1 and QC4+ protocols for fast charging laptops, phones, and tablets
- Dual-Mode Intelligence: Switch between White LED mode for screens (phones/laptops) and Blue LED mode for non-screen devices
- Universal USB-C Compatibility: Works seamlessly with iPhone 15/16, Samsung, MacBooks, and other USB-C devices
- Advanced Safety Protection: Built-in multi-layer firewall guards against over-voltage, over-current, and short circuits
- Compact & Portable Design: Lightweight, pocket-sized form factor perfect for home, office, or travel use
Ideal for overnight charging, preserving battery health in expensive electronics, and eliminating the anxiety of leaving devices plugged in.
Frequently Asked Questions
Answers to common concerns about using the battery guard.
Is this safe for my expensive devices?
Yes, the guard is designed with multi-layer firewall protection to safeguard your electronics against over-voltage and short circuits.
Does it slow down the charging process?
No, the guard only intervenes at 100% charge. Below that threshold, it allows for fast, high-speed charging protocols like PD3.1 to operate normally.
Can I use this with older USB-C devices?
It is designed for modern USB-C devices. While it offers broad compatibility, performance is optimized for current high-speed standards.
How do the LED modes work?
The unit features dual-mode intelligence: a White LED for screens and a Blue LED for non-screen devices, providing clear visual feedback.
How do delivery and returns work?
Shipping
Free standard shipping
To United States: 1–3 business days processing, then 7–15 business days in transit. Estimates, not guaranteed dates.
Your dispatch email includes a tracking link. Contact us if it has not arrived within 5 business days of ordering.
Outside the EU, import duties and local taxes may be payable on delivery. See the shipping policy for supported destinations and conditions.
Returns
Request a return within 14 days of delivery. Standard eligible returns must meet the policy conditions; a €4 prepaid-label fee is deducted from the refund. Return shipping is free for faulty, damaged or incorrect items. Contact us promptly if something is wrong. Your mandatory consumer rights are unaffected.
D
It works very well. On my phone, when it reaches 100%, it ejects. It's also smart enough to eject when i turn optimization on to stop charging when my phone reaches 80%; even then, it disconnects. For power banks, you have to click the button, the light will turn blue, and it works for all my power banks. Great purchase. I've ordered another one.
Just buy. Just buy. Just buy. Just buy. Just buy.
V
Very good, I really liked it, it really works.
E
The gadget works! I recommend it.
G
Very good
S
These mobile phone battery savers are brilliant – they stop your phone from overheating at night and disconnect once it’s finished charging