This SUNWAYMAN Charging Base is specifically designed to pair with the V60C and T60CS patented charging system. Use this convenient charging base to recharge SUNWAYMAN's most powerful flashlights without having to take the batteries out of the cannister! Simply place the light in the base, and your flashlight's batteries will charge. The base comes with AC and DC plugs for use in your home, office, or car. When the voltage of the loaded batteries is lower than 12V, the LED indicator lamp on the charging base turns red to indicate that the flashlight is being charged. When the voltage of the batteries tops 12 Volts, the LED indicator lamp will turn green to indicate that the batteries are being trickle charged or that charging has stopped.