To help extend your e-bike’s life, learning how to properly store the battery is essential. For starters, your e-bike should always be kept in a ventilated and open space, out of direct sunlight and away from moisture. It’s also critical that your battery is stored in a space that doesn’t have extreme temperatures. Brompton batteries should be stored between 32° and 68°F, with 50°F being optimum.
If you’re planning to store the battery for a long duration, such as during the winter season, we recommend detaching the battery from the bike, if possible, and storing it in fireproof storage container. It’s recommended that batteries are not stored either fully empty or full. Brompton recommends 28%-47% of charge (2 lights on the charge indicator) for long-term storage to avoid damage.