What is the shelf life of my Sealed Lead Acid battery?
All SLA batteries self-discharge. If the battery is not recharged periodically, its full capacity may not be recoverable. Typically, SLA batteries self-discharge 3% every month. We recommend you check and recharge every three months. SLA batteries should never be stored longer than six months without being recharged. Store the battery in a dry, cool place. Ideal storage temperature is 65-70 degrees Fahrenheit.