Shimano Ultegra ST-6870 Dealer's Manual page 7

TO ENSURE SAFETY
Lithium ion battery
Be sure to also inform users of the following:
• Store the battery in a safe place away from the reach of infants and pets.
SM-BTR1: Lithium ion battery (external type)
• When you do not use the battery for a long period, remove and charge the battery before storage.
SM-BTR2: Lithium ion battery (built-in type)
• When you do not use the battery for a long period, charge the battery before storage.
Be sure to also inform users of the following:
• Lithium ion batteries are recyclable, valuable resources.
For information on used batteries, contact the place of purchase or a bicycle dealer.
• 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 uncharged at the time of purchase. Before riding, be sure to charge the battery until it is fully charged.
• If the battery has become fully spent, charge it as soon as possible. If you leave the battery without charging it, it will cause the battery to deteriorate.
• The battery is a consumable item. The battery will gradually lose its capacity for charging after repeated use and after time has passed.
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. It is recommended that you charge the battery about once every half a year.
• If the storage temperature is high, the performance of the battery is reduced, and its available 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 low, the available time of the battery 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 amount of charge remaining in the battery.)
• 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: 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 requires as many hours (about 3 hours) as recharging via PC.)
CAUTION
NOTE
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