Battery's Charging Status - Epson TM-P20 Technical Reference Manual

Battery's charging status

Make sure you charge the battery in an environment with a temperature of 0 to 40°C.
Battery charging stops if it is charged in an environment outside the temperature range allowed for charging.
The charging status of the battery is notified by the combination of three LED lights on the Control Panel.
Environment
temperature
Power LED
50°C and higher
41 to 49°C
Outside the temperature range allowed for
0 to 40°C
Below 0°C
Outside the temperature range allowed for
The Charge LED is located on the single charger (OT-SC20).
When the battery is charged in an environment with a temperature of over 35°C, the printer detects
an increase in temperature, and automatically stops/resumes the printer; this may extend the
charging time.
When the power is ON
Charge
Error LED
LED
Battery high temperature error
charging
Charging
charging
Chapter 5 Handling
: On : flashes
When the power is OFF
Power LED Error LED
Outside the temperature range allowed for
charging
Charging
Outside the temperature range allowed for
charging
: Off
Charge
LED
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