How should I store the Spirit 2 battery over winter?

Proper winter storage of the Spirit Battery Ultra will protect its lifespan and ensure it is ready to go in spring. Follow these steps:

1. Charge to 60–80% before putting the battery into storage. Do not store it fully charged or fully depleted.
2. Store in a cool, dry location with an ambient temperature between 15°C (59°F) and 25°C (77°F). Avoid freezing temperatures, which can permanently damage lithium cells.
3. Check the charge every three months. If the battery has dropped well below 60%, top it up. The battery will enter a deep sleep mode at low charge, which causes self-discharge to slow — but if it reaches true zero, it may be unrecoverable.
4. Keep it indoors — an unheated garage or shed is acceptable if temperatures stay above freezing, but a heated space is preferable.

Do not store the battery in direct sunlight or in a vehicle that can get very hot. With proper storage, your Spirit Battery Ultra will be in good condition for many seasons.