Shimano ALFINE S7051 Series Dealer's Manual page 11

TO ENSURE SAFETY
„Lithium ion battery
• Lithium-ion batteries are recyclable, valuable resources.
• Charging can be carried out at any time regardless of the amount of charge remaining. Always be sure to use the special battery charger to charge the
battery until it is fully recharged.
• The battery is not fully charged at the time of purchase. Before riding, be sure to fully charge the battery.
• If the battery has become completely empty, charge it as soon as possible. If you leave the battery without charging it, it will cause the battery to
deteriorate.
• The battery is an exhaustible item. The battery will gradually lose its capacity to charging after repeated use.
If the length of time that the battery can be used becomes extremely short, it has probably reached the end of its life, and so you will need to
purchase a new battery.
• The life of the battery will vary depending on factors such as the storage method, the usage conditions, the surrounding environment and the
characteristics of the individual battery pack.
• If storing the battery away for a long period, remove it when the battery level is 50% or higher or when the green indicator is illuminating in order to
prolong its useful life; and it is recommended that you charge the battery about every six months.
• If the storage temperature is too high, the performance of the battery is reduced, and its useable time will be shorter. When you use the battery after
a long storage period, store the battery indoors where the battery will not be exposed to direct sunlight or rain.
• If the ambient temperature is too low, the battery's usable time will be shorter.
SM-BTR1: Lithium ion battery (external type)
• When storing the battery away, remove the battery from the bicycle and install the terminal cover first.
• The charging time is approximately 1.5 hours. (Note that the actual time will vary depending on the remaining battery charge.)
• If the battery feels difficult to insert or remove, apply specified grease (Premium Grease) to the part that touches the O-ring at the side.
SM-BTR2 / BT-DN110 / BT-DN110-A: Lithium ion battery (built-in type)
• After removing the battery from the bicycle for storage, install a dummy plug.
• The charging time of an AC adapter with a USB port is about 1.5 hours, and that of computer USB port type about 3 hours. (Note that the actual time
will vary depending on the amount of charge remaining in the battery. Depending on the specifications of the AC adapter, recharging via the AC
adapter may require as much time (about 3 hours) as recharging via PC.)
„Battery charger/Battery charger cord
• Charge the battery indoors to avoid exposure to rain or wind.
• Do not use outdoors or in environments with high humidity.
• Do not place the battery charger on dusty floors when using it.
• Place the battery charger on a stable surface such as a table when using it.
• Do not place any objects on top of the battery charger or its cable.
• Do not bundle the cables.
• Do not hold the battery charger by the cables when carrying it.
• Do not apply excessive tension to the cables.
• Do not wash the battery charger or wipe it using detergents.
• Use this instrument under the direction of a safety supervisor or the direction for use. Do not allow physically, sensory, or mentally impaired persons,
inexperienced persons, or persons with no required knowledge, including children, to use this product.
• Do not allow children to play near the product.
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