Panasonic Toughbook CF-U1A1B1G2M Reference Manual page 28

Battery Power
Battery indicator
Blinking red
Blinking orange
Blinking green and
orange alternately
NOTE
Once the battery is fully charged, the computer performs recharging only when the battery level becomes less than
approximately 95%, so overcharging is avoided.
When blinking approx. every 1 second:
The battery pack or the charging circuit is not operating properly.
When blinking approx. every 4 second:
The battery cover is open.
You can remove the battery pack in this case.
When blinking approx. every 0.5 second:
The battery cover is open.
If you remove the battery pack in this case, the power supply is cut off and the computer
is shut down. Do not remove the battery pack because this may cause data to be lost and
the computer to malfunction.
The battery cannot be charged temporarily due to the following reasons:
• Its internal temperature is out of the acceptable range.
• The power supply is not enough because software applications or peripheral
devices are consuming a large amount of power.
The temperature is low and the computer is warming up to prevent the flash memory
drive from malfunctioning. The computer will start automatically after warming-up.
Battery status
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