Casio IT-300 - Manual (Page 29)

E-27
Dual Battery Charger (optional)
Use the optional AC Adaptor for Dual Battery Charger (AD-S42120B).
AC Adaptor (AD-S42120B)
You can connect up to three Dual Battery Chargers.
Status of Charge Indicator LED
Off: Not charging
Red: Charging
Red Flashing: Battery pack problem
Green: Charging
complete
Green Flashing: Standby due to the surrounding temperature being beyond the
specifi ed temperature range (Approximately 0°- 40°C) (charging
resumes when the temperature reaches the range.)