Specifications:Battery capacity: 3000mAh;Voltage output: 4.2 volts;Variable wattage: 5 watts to 50 watts;Atomizer resistance: 0.3 ohm to 5.0 ohms;Threading: 510 compatible;Diameter: 30mm;Features:3000mAh built-in rechargeable battery;Adjust wattage with a simple twist of the bottom dial;Stainless steel endpoints;Stainless steel firing button;Black carbon fiber coated body;Spring-loaded atomizer contact point;Safety vent holes;Overcharge protection;Short circuit protection;Safety cutoff/atomizer protection;Low voltage protection;5-click on/off button;Using:Turn ON/OFF:Press button 5 times in succession in 2 seconds. The LED will blink 3 times (both blue and orange lights) and the button will illuminate Blue when active and ON.Repeat this procedure to turn battery OFF. Usage:Press the LED button and inhale at the same time;LED Light Indicator:Blue LED light will display for battery cell voltage of 3.6~4.2V. The Orange LED indicates a voltage less than 3.5V.Output Voltage:4.2V full power output;Compatible atomizer:Standard resistance: 0.8 ohm~1.2 ohm; 0.3 ohm~5.0 ohm are available.Variable Wattage:5~50W adjustable;Charging:Available Capacity:3000mAh rechargeable;Low Battery Indication:The battery Orange indicator light blinks 15 times;Charger Specification: 4.2V output;Complete Battery Charge Time3~6 hours;Charging Instructions:1. Unscrew the battery from the vaping components.2. Gently screw battery into the USB charger.3. Plug the USB into the supplied wall charger or computer.4. The battery will flash 3 times and then turn solid in color (Orange light in 3.3-3.5V, Blue light in 3.6~4.2V).5. The light on the USB charger will be red when charging.6. Once fully charged, the USB charger will display a green light, and the LED light on battery will turn off after blinking 20 times.Protection:Overcharge Protection:When battery is overcharged (voltage beyond 4.25V), the built-in microchip will automatically stop battery charging.Overdischarge Protection:When battery cell voltage is less than 3.3V (low battery), the atomizer will remain OFF, and the Orange LED light will blink 15 times.Atomizer Short Circuit Protection:If heating coils are short-circuited while vaping, the LED lights (both colors) blink 3 times, and the battery will default to sleep mode.Charging Short Circuit ProtectionIf the charger is short-circuited while charging, the battery will default to OFF position, stop charging, and the LED lights (both colors) will flash 6 times.High-temperature Protection:When the temperature is beyond 75 degree celsius, the LED will flash 10 times. 10 Seconds Function:When vaping time is beyond 10 seconds, the LED will blinks 10 times, the battery stops output, when the LED finishes blinking, then press the button to inhale again.Lock and Unlock Function:To lock the battery, press the button 5 times in succession in 2 seconds. The LED lights (both colors) will flash 3 times. Repeat this procedure or recharge to unlock. 3FVape is a professional electronic cigarette retail and wholesale shop. We provide new and cool e-cig products at affordable price. All products will be shipped from China now. If you find a product to be authentic, then it is not a clone. For any question about product title Authentic Aspire CF MAXX 3000mAh VW Variable Wattage Battery - Black, 5~50W, please contact us. We also encourage you to leave review of e-cig products on 3FVape.