Tait TP9100 Manual De Instrucciones página 9

If a radio is attached and turned on, the battery indicator on
the radio display shows that the battery is charging.
The red LED lights up, and stays lit while the battery charges.
For a battery that is almost completely discharged, allow two
hours.
If the red LED flashes, then your NiMH battery is being primed.
See "Charging a battery for the first time".
When charging is complete, the green LED stays lit.
LED behavior
If there is a battery in the charger when power is supplied to the
charger, the LEDs behave as follows:
LED
briefly
flashing
steady
steady
steady
flashing
or
all off
Meaning
The charger has been connected to a power supply.
A NiMH battery is being primed. If possible, do not
interrupt until the green LED is lit.
The battery is charging.
Charging complete. Remove the battery, or leave it in
the charger.
The battery temperature is outside the normal charging
range. Charging will start or resume once the
temperature is within normal limits. No action is
required by you.
There is a fault. See "Troubleshooting the charger".
Battery Charging Guide 9