12V 9AH AGM Battery Deep Cycle Battery AMP Lead Acid SLA Solar Power

Please charge the battery on receiving it even if the battery will not be used in the near future. Maintenance-free means the terminals need not be refilled. However, the battery must be recharged periodically after use. It is advised to charge the battery every 3 months if not in use for long periods. This is to prevent over-discharging of the battery which will cause irreparable damage to it. AGM deep cycle batteries have a much longer cycle life if they are exhausted to a small degree and then recharged, rather than draining all their power and recharging all the away.