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Leo: The Battery Life Extender

€99

Plug & play smart charging.

  • Smart charging
  • Optimized night charging
  • Set a charge limit
Add to your order

Order total

€99,00

14-day returns
2-year warranty
Product support
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Free returns within 14 days: we send you a prepaid return label.

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Learn more: Setup and support Awards

As much as50%longer battery lifespan

Optimal charge limit at about90%

Optimized night charging

Ghost Mode100WFull-speed USB-C charging to 100%, whenever you need it.

Works with practicallyevery USB devicephones, earbuds, controllers and more

Plug & play.No app needed.

OptionalLeo Connect appfor a custom charge limit

One button,three modesSmart, Ghost and Safe

Plug and play.

A charger, cable, Leo, Leo's short cable and a phone laid out in a line A charger, cable, Leo, Leo's short cable and a phone laid out in a lineYour chargerLeoYour devices
Leo charging a phone on a bedside table at night

Smart charging, fully automatic.

Sets an optimal charge limit

Leo automatically sets an optimal charge limit at approximately 90% for all your USB devices. Keeping batteries between 10% and 90% can already significantly extend their lifespan.

Optimized night charging

At night, Leo regulates the charging speed and schedules timely breaks to keep your batteries healthy.

Smart, Ghost or Safe.

Do more with the app.

A hand holding a phone with the Leo Connect app open, next to a Leo on the desk
Battery health
Live power monitor
Custom charge limit
Over-the-air updates

Sustainably designed.

Leo taken apart: top cover, button, USB-C sockets, circuit board and bottom cover

Made to last

A modular build and updatable software, so Leo keeps getting new features and optimizations for years to come.

Sustainably made cable

Made with Syllucid from recycled plastics and metals. Every cable supports Fairtrade Gold and reforestation.

100%

recycled tin, aluminum, TPE and PET in every cable

Works with what you already own.

Leo is compatible with virtually any device that charges via USB, and backward compatible with USB-A chargers.

Devices laid out around Leo on a white table
  • Headphones and earbudsTested with Sony, Bose, Sennheiser, Beats and JBL.
  • PhonesTested with Apple, Samsung, Fairphone and LG.
  • Controllers, speakers, power banksIncluding PlayStation 5 controllers.
  • E-readersTested with reMarkable and Kindle.
Devices laid out around Leo on a white table

Specs.

72 mm 24 mm9 mm
72 × 24 × 9 mm
Name
Leo: The Battery Life Extender
Power
20V / 5A (100W) maxRequires a charger, cable and device that support 100W.
Dimensions
72 × 24 × 9 mm
Connectors
USB-C
Compatibility
All USB-C to USB-C, Lightning and Micro-USB cables
Charging direction
Can charge in both directions
Material
Polycarbonate plastic
Firmware
Over-the-air software updates through the app
Connectivity
Bluetooth
Button
Smart Mode, Ghost Mode, Safe Mode
LEDs
Light strip to show charging mode and status
Application
Android and iOS
Color
Black
Leo's retail box with Leo and its USB-C cable

In the box

  • Leo smart charge controller
  • USB-C to USB-C cable

Sustainable packagingPackaged in an FSC-certified box.

What owners say.

Before you buy.

Something deeper? The Support center has setup guides, troubleshooting and the manual.

Can I use Leo with different devices?

Yes. Leo charges practically anything that charges through a USB port, up to 100W: smartphones, headphones, speakers and game controllers.

Do I need the app?

No. Leo is plug and play and works on its own. The app is for changing settings and seeing your battery analytics and health.

We do recommend the app to keep Leo updated. Get it at liionpower.tech/app.

Can I turn the light off?

Yes. You can turn the light off with the LED timeout setting in the Leo Connect app.

What's in the box?

Leo and a USB-C to USB-C cable.

Is it safe on public USB ports?

Yes. In Safe Mode, Leo works as a data blocker: it charges your device and blocks any data transfer.

How long is the warranty?

Leo comes with a two-year warranty.