Ideally, store a sealed lead acid (SLA) battery in a location where there’s no danger of getting impacted or having its terminals crossed accidentally, so a shelf out of the way is a good solution. The most important aspect for long-term storage is temperature, though. Storing a battery in extremely hot or cold temperatures can have a ngeative impact on the battery’s performance and lifespan. So choose a spot where the temperature remains relatively constant between 50 and 60 degrees Fahrenheit, or 10 to 15 degrees Celsius.