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E-51
Battery Replacement
• Leave battery replacement up to your original retailer or authorized CASIO Service
Center.
• Have the batteries replaced only with the type specified by in this manual. Use of other
types of batteries can cause malfunction.
• When replacing the batteries, also request a check for proper water resistance. Note
that you will be charged separately for water resistance inspection.
Initial Batteries
• The batteries that come loaded in your watch when you purchase it are used for function
and performance testing at the factory.
• These types of test batteries may go dead quicker than the normally rated battery life
as noted in the User’s Guide. Note that you will be charged for replacement of these
batteries, even if replacement is required within the watch’s warranty period.
Low Battery Power
• Low battery power is indicated by large timekeeping error, when display contents are
dim, or when the display does blank.
• Operation while battery power is low can result in malfunction. Replace the batteries
as soon as possible.