The Turbo USB is one of the most powerful duty flashlights ASP has ever designed and manufactured.Key features of the ASP USB Turbo include a 3-position, quiet switch (intermittent, locking and constant-on) and a foamed, vinyl grip that is durable yet tacky and provides insulation from the heat these types of lights give off.
The Turbo USB runs off one custom 18650-Lithium Ion rechargeable battery with a protection circuit module to prevent overcharging or short-circuiting.
What's really cool is that the battery indicator on the Turbo USB flashlight blinks red when charging and turns solid green when fully charged.!
You'll have a positive indication when your flashlight is fully charged.