An old time classic by Innokin and still remains one of the best Variablle voltage/variable wattage eGo style batteries until date Description Innokin iTaste VV V3.0 800mAh - Express Kit Looking for a compact, variable power, Ego battery with a passthrough feature? The iTaste VV V3.0 is a microprocessor controlled variable-voltage/variable-wattage (VV/VW) personal vaporizer that lets you adjust the voltage or wattage in seconds with just a few button presses. It's quick and easy! The V3.0 battery has a passthrough feature that allows you to use it while it is being charged. This eliminates the need to rotate between multiple batteries or waiting for them to fully charge. Specifications: Dimension: 4-3/8"L x 5/8"W Battery Capacity: 800mAh Operating Voltage: 3.3V-5.0V Charging Time: 1.5 Hours Operating Voltage: 3.3V-5.0V Operating Wattage: 6.0W-11.0W Maximum Current Output: 3.5 ampere Materials: copper tube /aluminum tube + zinc alloy Main Features: Passthrough: The iTaste VV is charged through a Micro USB Port. You can recharge it with any standard MicroUSB cable. It can also work as a pass-through device for simultaneous vaping and charging. The battery must contain a small charge before it can be used in this way. If you're using the battery quicker than it can charge, the battery will shutoff. We suggest charging the battery for 10-15 minutes before using it. Variable Voltage: voltage can be adjusted from 3.3 – 5.0 volts in .1 volt increments. Variable Wattage: Wattage can be adjusted from 6.0 – 11.0 W in .5 watts increments. Ohms meter: Resistive Load Detection. Puff Counter: The puff counter will record how many puffs you have taken. The records will be cleared when the device is turned off. Short Circuit/Atomizer Protection: Short Circuit/Atomizer Protection helps protect the iTaste VV against faulty atomizers. Over-Discharge Protection: The iTaste VV monitors the battery voltage and will automatically turn off when the battery is discharged. LED Battery Indicator: The iTaste VV battery utilizes an advanced capacity display via green, yellow and red LED lights. Users will know the battery’s capacity via the color of the LED Button. The LED lights will show green, yellow or red to indicate full battery life, half capacity or charging needed. Superior Battery Life: The iTaste VV e-cigarette features a built-in 800 mAh polymer Li-Ion rechargeable battery. 510 Threaded: The iTaste VV is threaded to accept 510 accessories, including the iClear10,iClear16 and iClear30 clearomizers. ON/OFF Battery Switch: Quickly clicking three times will power the device on or off. Once the device is on, holding down the button will activate the battery. This safety feature prevents the atomizer from turning on while it's in your pocket or bag, as well as inadvertent settings changes. 10-Second Cutoff: If the button is held down for 10 seconds or longer, the iTaste VV will shut itself off until the button is released. Settings Retention: The device remembers the last voltage or wattage used when switching batteries. Display Information: The bright display shows resistance (ohms), voltage, wattage, atomizer voltage output, puff count, and last-used settings.