TroubleshootingReference
Charge Indicator Status List
The charge indicator light 
turns on or blinks differently according to conditions.
turns on or blinks differently according to conditions.Lit in orange
The battery pack is charging. (Turns off when charging is completed.)
Blinks in orange along with the green power indicator 
The battery pack is running out of power. (Normal mode)
Blinks fast in orange
A battery error has occurred due to a failed battery pack, an unlocked battery pack, etc.
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