How It WorksSolutionSustainabilityTeamGet the App
Sustainable Power Sharing Network

Stay charged, stay connected, stay clean

A shared network of rental power banks at stations across the city. Scan, rent, and return anywhere.

How It WorksGet Early Access
∞CIRCUL8
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4.9B
Smartphone users worldwide
33.6M
Tonnes CO2 from charging annually
77%
User validation rate
The Challenge

The Problem

Access

Millions run out of battery daily with no convenient charging option when away from home or work.

🌎

Environment

Personal power banks rarely get recycled, end up in landfill, and are manufactured with no regard for carbon footprint or material sourcing.

🔗

The Gap

No existing solution combines convenient on-demand charging with genuine sustainability commitments and transparent impact tracking.

Our Answer

The Solution

Circul8 is a shared network of smart power bank stations across the city. Rent a fully charged power bank in seconds, return it at any station.

  • 3-in-1 charging: Lightning, USB-C, and Micro USB in every unit
  • 15,000mAh capacity: charge your phone up to 4 times per rental
  • QR scan to unlock: get a power bank in under 10 seconds
  • Return anywhere: drop off at any Circul8 station in the network
Simple Process

How It Works

01

Find a Station

Open the Circul8 app and locate the nearest charging station. Available at cafes, transport hubs, universities, and shopping centres.

02

Rent a Power Bank

Scan the QR code or enter your ID at the touchscreen. A fully charged 15,000mAh power bank releases in seconds.

03

Return It Anywhere

Done charging? Return the power bank to any Circul8 station in the network, no matter where you picked it up.

04

Earn and Give Back

Track your CO2 savings in real time. Earn green points with every rental and contribute to a cleaner, more connected city.

Launch Timeline

Built to Scale

From Barcelona to the world, one city at a time.

2025

Barcelona

Pilot launch across 50+ partner locations. Power bank network goes live in the city.

Active
2026

Spain

National rollout across Madrid, Valencia, Seville, and 10+ major cities.

2027+

Europe

Pan-European expansion targeting 15 countries and 100M+ potential users.

Supported by

ACCIÓGeneralitat de Catalunya

Get in Touch

Who Are You?

We work with a range of partners. Tell us how you fit in.

CustomersDownload the app & start borrowing Location PartnersHost a Circul8 station🏙GovernmentsSustainable city programmes🌟SponsorsPartner with purpose

hello@circul8.net

Stay Charged.
Stay Connected. Stay Clean.

A network of clean energy powered rentable power banks across your city.
Pick one up. Charge on the go. Return it anywhere.

Join the waitlist Learn more
The Power Bank

Pocket-sized. City-powered.

Every cable you need, built in. A full day of power, checked out in seconds.

7500 mAh
High-capacity battery
Up to two full smartphone charges from a single power bank.
3
Built-in cables
USB-C, Lightning and Micro-USB fold flush into the body. Nothing to carry, nothing to forget.
100%
Recycled case
The shell is made of recycled plastic and is fully recirculated at the end of its life.
4
LED indicators
Glance-level charge status, so you always know how much power is left.
USB-C output
USB-A output
Lightning cable
Micro-USB cable
The Charging Station

Your city's new power grid.

Smart vending stations across the city, open 24/7. Grab a charged power bank in seconds and drop it back at any station when you are done.

Digital touchscreen

Rent with the QR code in the app or type your unique ID directly at the station. No app required.

Pick up here, return anywhere

Every station accepts every power bank. Wireless induction docks recharge them the moment they are returned.

100% renewable energy

Stations run entirely on clean energy, making the whole network a zero-emission recharging system.

Secure by design

Built-in security mechanisms keep every power bank locked, tracked and ready, day and night.

The App

Rent in seconds.

Find the nearest station, scan, and go. Your energy and your impact, tracked in one place.

Circul8
3 stations near you
Pl. Catalunya Station
12 available · 240 m away
6.2 kWh
Energy tracked
4.8 kg
CO₂ saved
Scan to rent

01Locate

See every station near you on the map, with live availability.

02Rent

Scan the QR code at the station and the dock releases a fully charged power bank.

03Return anywhere

Done charging? Slot it into any station in the network. That's it.

04Track your impact

Follow your rental history, energy use and the CO₂ you save, and earn incentives for it.

The Circul8 app is coming soon to iOS and Android. Be the first to know.
Why Circul8

Modern life runs on battery.
Batteries don't keep up.

Payments, tickets, maps, calls. Everything lives on your phone. But batteries rarely last the day, and there is no easy way to charge on the move.

Your battery, by early evening.
33.6M
Tons of CO₂ produced every year from smartphone charging alone.
<1 day
Typical smartphone battery life, while our dependence on devices keeps growing.
0
Easy ways to charge on the go today. Outlets keep you tethered to walls and cafes.

Circul8 closes the gap: shared power banks, always within reach,
recharged with 100% renewable energy.

Launching soon

Barcelona first.
Then Europe.

From Pl. Catalunya to the Sagrada Família, 1.7 million locals and 16 million yearly visitors will never hunt for an outlet again.

Barcelona 2026 MadridParisBerlin AmsterdamMilanLisbon
Pricing

Simple. Like it should be.

2€
per hour
Pay in the app or at the station Return at any station in the city No subscription. No hidden fees.
Join the waitlist
Sustainability

Clean energy,
at every stage.

100% renewable power

Every station in the network is fueled entirely by renewable energy.

Recycled materials

Power bank cases are made of recycled plastic, with recycled metals for internal hardware in the works.

Impact you can see

The app shows the CO₂ you save with every rental, and rewards you for it.

EU-compliant supply chain

We partner with manufacturers that meet EU battery standards and supply chain ethics.