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Do not replace the GP unit’s battery yourself. The GP uses a lithium battery for backing up its internal
clock data and the battery may explode if it is replaced incorrectly. When replacement is required, please
contact your local GP distributor.
When the message “RAAA051 Low battery” is displayed, supply power to the display unit and
fully charge the battery. The battery charges within 24 hours to a level which allows backup
operation. Completing a full charge requires about 96 hours (4 days).
• A Lithium battery’s lifetime is: 10 years when the battery’s ambient temperature is 40°C or less.
4.1 years when the battery’s ambient temperature is 50°C or less. 1.5 years when the battery’s
ambient temperature is 60°C or less.
When used for backup:
Approximately 100 days, with a fully charged battery.
Approximately 6 days, with a half-charged battery.