Our mission.

Aging batteries fuel e-waste.

Our mission is to make our future more sustainable by improving the performance and longevity of lithium-ion batteries through smart charging technology.

Each year, over 5 billion devices are produced, but nearly a third become waste due to aging batteries. This not only harms the environment but also costs consumers billions annually.

Habits like overnight charging, charging to 100%, and fast charging are silently damaging your batteries, shortening their lifespan and leading to unnecessary electronic waste.

We aim to optimize the charging process to prioritize battery health, allowing consumers to keep their devices longer, save money, and reduce their environmental impact.

62 Mt

of e-waste in 2022, only 22% properly recycled

5.3 bn

phones thrown away in 2022 alone

1 in 3

devices replaced due to aging batteries

It started with a year of cycling batteries.

The idea began with Jardo during an MSc Physics literature study on battery degradation mechanisms. After a year of continuously cycling dozens of batteries under different charging protocols, the results were unanimous: across every protocol examined, we saw a substantial extension in battery lifespan, as much as 63%.

How much you gain depends on how much you already do to protect your batteries. The experiments ran with AccuBattery installed so the findings were externally validated by a trusted battery analytics app with over ten million downloads.

Capacity retention over charge cycles Lab testing

+63%

lifespan extension in lab testing.

Leo's protocols Conventional charging

Lab results. The actual extension largely depends on how much you already do to limit battery degradation.

Seven years, one problem.

2019

First tests
Dozens of cells cycled under different charging protocols in a student room in Amsterdam.
2021

Liion Power incorporated
Named Most Innovative Student of the Netherlands, and wins the Postcode Lotteries Green Challenge.
2022

Silicon Valley
The idea meets the market, and the team grows.
2023

Leo launches on Kickstarter
Roughly €100,000 in pre-orders within a week; over €250,000 and 2,700+ backers by the end.
2025

CES Innovation Award
Sustainability & Energy/Power. The first production run of 5,000 units ships.
2026

More than 60 countries
Leo in daily use worldwide, and scaling across Europe.

Designed for longevity.

The product lasts

A modular build and updatable software
New features and optimizations through over-the-air updates
2-year warranty as standard

The materials

The included Syllucid cable is made from recycled plastics and metals, including recycled aluminum
Responsibly sourced, recycled and carbon-neutral solder
Every cable supports Fairtrade Gold and reforestation