Store it at 50% battery level in a comfortable temperature.
All batteries have a lifespan based on the age of the battery and the number of charging/depletion cycles. Battery cells are like a balloon; they can lose “elasticity” when left fully-charged or fully-drained for long periods of time. If you don’t plan on riding your Onewheel for a week or longer, it’s good practice to store it near 50% battery charge in a comfortable temperature. The same rule for pets applies to Onewheels; “If You’re Cold, They’re Cold, Bring Them Inside!”.