Hitachi S10mini D, Hardware Manual

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8 EXPLANATION OF OPERATION
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CPU module REV check position
Check the bar code label to confirm the CPU module REV as illustrated below.
The life expectancy of a lithium battery under the ambient temperature and humidity is seven
years. Replace the battery if you have used it over seven years even if it has not reached the
backup guaranteed time.
The life expectancy of the lithium battery may decrease and leakage may occur, depending
on the environment. Replace the battery if you have used it in five to six years even if it
has not reached the backup guaranteed time under the use of high temperature and humidity.
Replace the lithium battery within three minutes after removing the battery connector. The
memory data is backed up by the built-in super condenser instead of the battery during the
three minutes.
Bar code label
R147501
001 013 D
CPU module REV