Outrider:
When the battery is low the device will flash red 10 times. While charging the battery indicator button light will change color based on the amount of charge. Red = 0-5%, Green = 5-50%, and Blue = 50-99%. Once the device has finished charging the button light will turn off
Mini Tank/Rage:
The blue light behind the button will not be lit anymore once it is fully charged. The device also shuts off once fully charged. Click the button 5 times rapidly to turn it back on.
Dial:
While charging the back indicator light will indicate the level of charge, once fully charged the light will turn off.
Stinger:
During the charging process the light will stay red, once fully charged the light will turn green and stay on until disconnected from the charger.
Thunder:
The button light will flash red when low on power. While charging, the base light will be red, once fully charged the light will turn off.
Nitro2 and Cyclone:
The USB ego charger light will change to green once the pen is fully charged. It will display a red light if not fully charged.
NOTE: To extend the life of your battery do not leave on the charger once fully charged.