How do I determine if the VisionCheck's battery is low?

There are several ways that you can determine the battery level of the VisionCheck:

• The Power LED button on the device will blink red when the battery is low
• When paired with the smartphone, the VisionCheck app will display the battery level
  • The battery icon will be green to indicate a full battery
  • The battery icon will be white when the level is between 25% and 99%
  • The battery icon will be red when the level is between 0% and 25%