Assuming you can reprogram it I’d try a reset to
restore the transceiver to factory settings - but don’t try this if you do not have the programming cable and software. You sure the battery pack hasn’t failed or the charger isn’t faulty?
1 With the transceiver power OFF, press and hold the PTT switch, the Side 1 key, and the Side 2 key while turning the transceiver power ON.
Continue to hold the keys for 2 seconds, until the LED lights orange.
2 Release the keys. The transceiver beep sounds and returns to normal operation. If the keys are released before the LED lights orange, All Reset Mode will cancel