Entel battery fails to authenticate
If your genuine Entel battery fails to authenticate please try:
Another battery on the radio and the battery on another radio of same model type (to identify if its the battery or the radio at fault).
Carefully cleaning the battery and and radio contacts and try again.
If this does not address the issue please advise:
What is the model & serial number of the radio used?
What is the radios firmware version?
What is the model & serial number of the battery used?
What was the temperature of the room/environment?
Was the battery taken straight off the charger before it failed to authenticate?