CipherLab CP55 Reference Manual page 31

LOW BATTERY ALERT
When main battery level drops below 40%, the mobile computer prompts "Main Battery
Low" for a recharge. When further reduced to under 20%, the mobile computer prompts
"Main Battery Very low" to solicit your immediate action.
Low battery may incur shutdown to the mobile computer and cause DRAM data damage.
Always save data before running short of power or keep a fully charged battery at hand for
replacement.
Note: Constant usage of the mobile computer at low battery level can affect battery life. For
maximum performance, recharge the battery periodically to avoid battery drain out
and maintain good battery health.
When main battery drains out, the mobile computer shuts down automatically. Backup
battery takes over to hold DRAM data for 30 minutes if it is fully charged. When this occurs,
replace main battery pack immediately to avoid data loss.
Chapter 1 Use Mobile Computer
15