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Your RYOBI 80V HP Battery is designed to provide maximum trouble-free life. To obtain the longest possible battery life, always:

• Remove the battery from the charger once it is fully charged and ready for use.
• Store in a dry, room temperature environment.
• When fully depleted after use on the mower, make sure to place on the charger to charge it fully.
• If the mower won't be used for longer than a month, leave the battery with a 40-60% state of charge to promote lithium cell life.