
Bamboo battery O±O
How to redefine batteries and how users interact with them?
Redefining Energy Through User-Centric Design
The Bamboo Battery O±O project exemplifies how design thinking can transform everyday objects into sustainable, user-friendly solutions. Developed in collaboration with Yamaha’s O±O initiative, this universal battery integrates natural materials—bamboo and copper—to create an eco-conscious alternative to traditional batteries.
Central to the design is the user’s interaction with energy consumption. By enabling manual charging through a bicycle-powered system, users engage physically with the energy they generate, fostering a deeper appreciation for sustainable practices. This hands-on approach not only reduces reliance on conventional power sources but also promotes an active lifestyle.


“A real and funtional portable battery.”
The battery’s slim, lightweight design ensures portability, encouraging users to carry it across various settings—from powering laptops to musical instruments. Its versatility reduces the need for multiple batteries, aligning with sustainable consumption habits.
Through iterative prototyping and user feedback, the design evolved to meet both functional and aesthetic needs. This process underscores the belief that design is good business: by prioritizing user experience and sustainability, the Bamboo Battery O±O not only serves its functional purpose but also resonates with environmentally conscious consumers.

The concept is rooted in a simple yet powerful exchange: physical effort becomes electrical energy. By placing a bicycle on the charging station, users generate power through movement—creating an off-grid, unplugged charging solution that’s both intuitive and engaging.
The O±O bamboo battery is more than a power source; it’s a statement. It promotes a positive, conscious approach to electricity usage, where the user becomes an active participant in the energy cycle. This analog interaction adds meaningful value across the board—for people, the planet, and the brand.
Multiple prototypes were developed and tested to balance form, function, and feasibility. Through cycles of iterative prototyping and real-world validation, the design team refined the product’s ergonomics, usability, and interaction. The physical act of charging via a bicycle-powered system invites users to engage with energy creation in a meaningful, tangible way—transforming the battery from a passive object into an active learning experience.


